Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 31 December 2015 at 16:41,   wrote:
> I do caution against putting the motor leads in with the encoder and limit 
> switch signals. Decades of pain and suffering is sure to follow, don't ask 
> how I know.

I did worry about it, but in my case the wires arrive at the shared
connector in separate shielded cables and leave in separate cables,
and it seems to work OK.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Rookie Question - Direct wire or connectors

[richshoop]

I suggest looking at the AMP CPC connector family. Relatively small size for 
the number of contacts, readily available including EBAY, gold contacts, tin 
contacts. I do caution against putting the motor leads in with the encoder and 
limit switch signals. Decades of pain and suffering is sure to follow, don't 
ask how I know. 

- Original Message -

From: emc-users-requ...@lists.sourceforge.net 
To: emc-users@lists.sourceforge.net 
Sent: Thursday, December 31, 2015 4:23:31 AM 
Subject: Emc-users Digest, Vol 116, Issue 88 

Send Emc-users mailing list submissions to 
emc-users@lists.sourceforge.net 

To subscribe or unsubscribe via the World Wide Web, visit 
https://lists.sourceforge.net/lists/listinfo/emc-users 
or, via email, send a message with subject or body 'help' to 
emc-users-requ...@lists.sourceforge.net 

You can reach the person managing the list at 
emc-users-ow...@lists.sourceforge.net 

When replying, please edit your Subject line so it is more specific 
than "Re: Contents of Emc-users digest..." 


Today's Topics: 

1. Re: Spindle control (Gene Heskett) 
2. Re: Rookie Question - Direct wire or connectors (andy pugh) 
3. Re: Rookie Question - Direct wire or connectors (Gene Heskett) 
4. Re: Waterjet at TX/RX Labs (Jason Burton) 
5. Re: Waterjet at TX/RX Labs (Jon Elson) 
6. Re: Rookie Question - Direct wire or connectors (Gregg Eshelman) 
7. OT: one armed bandit's arm (Bertho Stultiens) 


-- 

Message: 1 
Date: Wed, 30 Dec 2015 11:59:18 -0500 
From: Gene Heskett  
Subject: Re: [Emc-users] Spindle control 
To: emc-users@lists.sourceforge.net 
Message-ID: <201512301159.18678.ghesk...@wdtv.com> 
Content-Type: Text/Plain; charset="iso-8859-1" 

On Wednesday 30 December 2015 11:17:45 andy pugh wrote: 

> On 30 December 2015 at 15:37, Gene Heskett  wrote: 
> > IIRC, this spindle-at-speed thing is only effective when its called 
> > for by the g-code command that needs it, such as in a G76 or G33.1. 
> 
> No, if the pin is wired (it defaults to permanently true) then the 
> behaviour is as-documented. 
> 
Ah, thanks for the correction Andy. 

> "motion.spindle-at-speed" Motion will pause until this pin is TRUE, 
> under the following conditions: before the first feed move after each 
> spindle start or speed change; before the start of every chain of 
> spindle-synchronized moves; and if in CSS mode, at every rapid->feed 
> transition. 
> 
> ie, any feed move after a spindle speed change will pause until the 
> spindle is at the new speed. 


Cheers, Gene Heskett 
-- 
"There are four boxes to be used in defense of liberty: 
soap, ballot, jury, and ammo. Please use in that order." 
-Ed Howdershelt (Author) 
Genes Web page <http://geneslinuxbox.net:6309/gene> 



-------------- 

Message: 2 
Date: Wed, 30 Dec 2015 17:17:25 + 
From: andy pugh  
Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors 
To: "Enhanced Machine Controller (EMC)" 
 
Message-ID: 
 
Content-Type: text/plain; charset=UTF-8 

On 30 December 2015 at 16:58, Jon Elson  wrote: 

>>> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a2:g:aRoAAOSwY45URiPA
>>>  


> You really want gold-plated contacts for things that run at 
> relatively low voltages and are not plugged in and out 
> frequently. 

I have these on my first CNC conversion, and they haven't caused any 
problems, but at the same time I don't like them the way I like the 
Neutrik connectors (and Lemo connectors). 

The Neutrik Speakon connectors use multi-leaf silver contacts. How do 
they compare in the spectrum of desirability? 
(I have only used them for servo motor drives, at about 300V) 

Another option for an A-axis is a hybrid D-sub. That lets you have the 
power and data in one connector, all gold-plated. 
http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/ 
The data pins on D-sub are good for 5A, but the big power terminals can do 40A. 
An interesting possibility with these connectors is that they can also 
have pneumatic inserts, which could be handy for a clamped A axis. 
http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin=PSF_435844|acc
 

-- 
atp 
If you can't fix it, you don't own it. 
http://www.ifixit.com/Manifesto 



-- 

Message: 3 
Date: Wed, 30 Dec 2015 12:54:50 -0500 
From: Gene Heskett  
Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors 
To: emc-users@lists.sourceforge.net 
Message-ID: <201512301254.50112.ghesk...@wdtv.com> 
Content-Type: Text/Plain; charset="iso-8859-1" 

On Wednesday 30 December 2015 12:17:25 andy pugh wrote: 

> On 30 December 2015 at 16:58, Jon Elson  wrote

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Gregg Eshelman]

> On Wednesday 30 December 2015 12:17:25 andy pugh wrote:

>> Another option for an A-axis is a hybrid D-sub. That lets you have the
>> power and data in one connector, all gold-plated.
>> http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/
>> The data pins on D-sub are good for 5A, but the big power terminals
>> can do 40A. An interesting possibility with these connectors is that
>> they can also have pneumatic inserts, which could be handy for a
>> clamped A axis.
>> http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin
>> =PSF_435844|acc

13W3 was most commonly used for monitors on SUN workstations. 
Interesting to know that other purposes have been found for the three 
large holes.

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Gene Heskett]

On Wednesday 30 December 2015 12:17:25 andy pugh wrote:

> On 30 December 2015 at 16:58, Jon Elson  wrote:
> >>> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel
> >>>-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a
> >>>2:g:aRoAAOSwY45URiPA
> >
> > You really want gold-plated contacts for things that run at
> > relatively low voltages and are not plugged in and out
> > frequently.
>
> I have these on my first CNC conversion, and they haven't caused any
> problems, but at the same time I don't like them the way I like the
> Neutrik connectors (and Lemo connectors).
>
> The Neutrik Speakon connectors use multi-leaf silver contacts. How do
> they compare in the spectrum of desirability?
> (I have only used them for servo motor drives, at about 300V)
>
> Another option for an A-axis is a hybrid D-sub. That lets you have the
> power and data in one connector, all gold-plated.
> http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/
> The data pins on D-sub are good for 5A, but the big power terminals
> can do 40A. An interesting possibility with these connectors is that
> they can also have pneumatic inserts, which could be handy for a
> clamped A axis.
> http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin
>=PSF_435844|acc

Now that could be handy than bottled beer!  My teeny little 4" table only 
has a single brass screw to do the locking, which isn't really effective 
for resisting cutting forces.  So I pulled it apart, milled an air 
groove in the base where the table sits on the base casting, and a port 
in the side for injecting air into, then pulled the center bolt down so 
it sat fairly solidly. The motor is not capable of moving it when its 
that tight unless I inject air into it, which both lifts the edge of the 
table a couple microns, and furnishes an air bearing. So I will have 
eventually, a lawn tractor sized battery on a smart trickle charger, 
feeding a relay that runs a compressor to supply that air, which I'll 
trigger before doing an A move, and turning it off when done.  The 
battery is to run one of those  glove pocket sized, cigarette light 
socket powered inflater gizmo's on a quite intermittent basis.  Bench 
tested, it seems to work, but it has not carved any metal yet so I don't 
know if that will be enough clamping/braking. Pulling a vacuum I would 
think would lock it down pretty good, but I've made no provisions for 
that.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 30 December 2015 at 16:58, Jon Elson  wrote:

>>> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a2:g:aRoAAOSwY45URiPA


> You really want gold-plated contacts for things that run at
> relatively low voltages and are not plugged in and out
> frequently.

I have these on my first CNC conversion, and they haven't caused any
problems, but at the same time I don't like them the way I like the
Neutrik connectors (and Lemo connectors).

The Neutrik Speakon connectors use multi-leaf silver contacts. How do
they compare in the spectrum of desirability?
(I have only used them for servo motor drives, at about 300V)

Another option for an A-axis is a hybrid D-sub. That lets you have the
power and data in one connector, all gold-plated.
http://uk.rs-online.com/web/p/solder-d-sub-connectors/5427573/
The data pins on D-sub are good for 5A, but the big power terminals can do 40A.
An interesting possibility with these connectors is that they can also
have pneumatic inserts, which could be handy for a clamped A axis.
http://uk.rs-online.com/web/p/d-sub-connector-contacts/6659904/?origin=PSF_435844|acc

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Jon Elson]

On 12/30/2015 09:58 AM, John Alexander Stewart wrote:
> On Sat, Dec 26, 2015 at 6:22 PM, Gene Heskett  wrote:
>
>> On Saturday 26 December 2015 17:39:11 John Thornton wrote:
>>
>>> Gene got a link to one?
>>>
>>> JT
>> <
>> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a2:g:aRoAAOSwY45URiPA
>> One of many similar listings.
>
> I'm another happy user of these things. Mainly for my "A" axis rotary
> tables, as I can (dis)connect-when-powered-off easily and they are
> available locally.
>
>
You really want gold-plated contacts for things that run at 
relatively low voltages and are not plugged in and out 
frequently. Especially if a poor contact could possibly blow 
out a stepper driver.

Jon

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[John Alexander Stewart]

On Sat, Dec 26, 2015 at 6:22 PM, Gene Heskett  wrote:

> On Saturday 26 December 2015 17:39:11 John Thornton wrote:
>
> > Gene got a link to one?
> >
> > JT
>
> <
> http://www.ebay.com/itm/10pcs-Aviation-Plug-Male-Female-Wire-Panel-Metal-Connector-16mm-4-Pin-GX16-4-/311141053346?hash=item487173b3a2:g:aRoAAOSwY45URiPA
> >
>
> One of many similar listings.


I'm another happy user of these things. Mainly for my "A" axis rotary
tables, as I can (dis)connect-when-powered-off easily and they are
available locally.

John
--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Gene Heskett]

On Sunday 27 December 2015 18:38:38 Ben Potter wrote:

> > On Sunday 27 December 2015 18:03:20 Ben Potter wrote:
> > > I have to admit I'm curious how industrial 4th axes are set up - I
> > > presume an extended ground pin at a minimum - or do they need a
> > > full power down of the machine too?
> >
> > A full power down of that motors driver will suffice.  Its safe to
> > power
>
> up the driver while the motor is disconnected, and when it is
> connected, but the intermittent connections of unplugging it while the
> driver is powered up will
>
> > write a ~30~ to that drivers story a very large percentage of the
> > time.
> >
> > I killed a xylotex board twice with bad connectors.  Connector name
> > starts
>
> with an M.
>
> Sorry Gene, I may not have been clear enough - My (crude) 4th axis -
> which is due to machine a better 4th axis this week uses this method.
> The complete machine needs to power down and be left alone long enough
> for the DC bus to discharge. It's not bad, and keeps me going, but I
> keep thinking 'there's gotta be a better way'.
>
> I was wondering if the big machine builders had come up with a hotplug
> solution. My brain has been saying extended ground pin plus a resistor
> across two pins - the drive would need to detect the correct
> resistance before powering up. The big concern for me is how fast
> would the drive need to power down in a disconnect situation.
>
> I do hitting things with a hammer, this electronic stuff is a bit
> arcane for me.
>
:)  I hear that. 

The better drivers, even the xylotex, have an enable line that if taken 
to the correct logic level, disables the driver, and until proven 
differently, I'd have to assume that also would make the 
connect/disconnect safe to do.  The main reason its not used in most of 
our smaller stuff is that means 3 pins per axis are used on the breakout 
board.  And that runs us out of pins to do other things. So generally, 
at my 20 anyway, the drivers are  wired active when powered up. On a 4 
axis machine, you would need 4 more output pins to individually control 
them.

However, if and when I get my A axis moved to p2 on the 5i25, I'll have a 
spare pin, and I may just power it down between moves. But first I need 
some stuff from china, and a round tuit needs to be found to get my 
spindle PSU under software softstart control.
> In the back of my brain may also be the thought of 'how do I make this
> toolpost grinder into a safely switchable tool'. At least that one is
> fairly low power
>
> Thanks
> Ben
>
>
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Ben Potter]

> On Sunday 27 December 2015 18:03:20 Ben Potter wrote:
> > I have to admit I'm curious how industrial 4th axes are set up - I 
> > presume an extended ground pin at a minimum - or do they need a full 
> > power down of the machine too?

> A full power down of that motors driver will suffice.  Its safe to power
up the driver while the motor is disconnected, and when it is connected, but
the intermittent connections of unplugging it while the driver is powered up
will 
> write a ~30~ to that drivers story a very large percentage of the time.

> I killed a xylotex board twice with bad connectors.  Connector name starts
with an M.

Sorry Gene, I may not have been clear enough - My (crude) 4th axis - which
is due to machine a better 4th axis this week uses this method. The complete
machine needs to power down and be left alone long enough for the DC bus to
discharge. It's not bad, and keeps me going, but I keep thinking 'there's
gotta be a better way'.

I was wondering if the big machine builders had come up with a hotplug
solution. My brain has been saying extended ground pin plus a resistor
across two pins - the drive would need to detect the correct resistance
before powering up. The big concern for me is how fast would the drive need
to power down in a disconnect situation.

I do hitting things with a hammer, this electronic stuff is a bit arcane for
me.

In the back of my brain may also be the thought of 'how do I make this
toolpost grinder into a safely switchable tool'. At least that one is fairly
low power

Thanks
Ben


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Gene Heskett]

On Sunday 27 December 2015 18:03:20 Ben Potter wrote:

> > From: Bruce Layne [mailto:linux...@thinkingdevices.com]
> >
> > On 12/26/2015 05:17 PM, Ben Potter wrote:
> > > I tend to use Amphenol connectors...
> > > They are..._slightly_  pricey though - but very convenient if you
> > > have to swap a motor out
> >
> > I've heard this advice before but I've never fully understood it.
> > All of
>
> the stepper motors I buy have bare leads, so I'd need to add a
> connector to the stepper motor and a mating connector to the motor
> cable.  That's not too bad
>
> > when building a machine, but the recommendation is specific to
> > replacing
>
> the motor.  If the motor ever needed to be replaced, I'd need to
> install another connector on the motor leads.  I have several
> connectors in stock, and the
>
> > pins and sockets and crimpers, but finding the correct connector
>
> components is always more trouble than desoldering the old motor and
> soldering a new motor.  I guess the connector strategy works for
> people who buy an extra motor or > two and install the connectors
> while building the machine and keep the spare motors with the machine
> so it's easy to plug in a new motor.
>
> I think it really comes down to 'how much will this downtime cost me'.
> And that really depends on what the machine is being used for - I
> _assume_ that the OP is building a hobby class machine, but I have
> seen nema17 steppers used on industrial metrology gear.
>
> This approach for me comes from running and maintaining industrial
> tools - where the reasoning is sound (it's not much more trouble for
> the manufacturer to wire up 7500 motors instead of 7000 and keep the
> extra as spares for when a customer's motor breaks). Spare drives
> (with quick disconnects), cables, and motors (with connectors) are
> then kept in stock and sold at usurious rates.
>
> On my own machines I keep the more predictable spares (including
> prewired motors with encoder) ready to swap out. As I've moved to
> heavier machines and industrial servos I've found that the motors
> generally come with connectors pre-installed. My router (using nema23
> steppers) does have soldered in motors.
>
> If it's a hobby machine, or one machine amongst many - then the cost
> of downtime is probably less than the cost of keeping the spares. On
> an industrial tool 24 hours of downtime is likely to far exceed the
> cost of basic spares.
>
> As an aside - some manufacturers (igus spring to mind) do put
> connectors directly on their stepper motors.
>
> > My only caveat with soldered connections is that they must be
> > protected
>
> from flexing and vibration.  The solder wicks into the stranded
> conductor and creates a stress riser, and the wire can break at that
> point if flexed or shaken,
>
> > but if you secure the cable to prevent it from flexing or vibrating
> > you'll
>
> have a very reliable (and inexpensive) connection.
>
> Good advice. It can be a frustrating fault to diagnose - particularly
> if the connection is intermittent and the blasted motor moves _most_
> of the time.
>
> > I'd use connectors for things like a 4th axis or rotary table that
> > you
>
> want to disconnect and remove when not in use.  Obviously, you should
> power down before plugging or unplugging stepper motors.
>
> I have to admit I'm curious how industrial 4th axes are set up - I
> presume an extended ground pin at a minimum - or do they need a full
> power down of the machine too?

A full power down of that motors driver will suffice.  Its safe to power  
up the driver while the motor is disconnected, and when it is connected, 
but the intermittent connections of unplugging it while the driver is 
powered up will write a ~30~ to that drivers story a very large 
percentage of the time.

I killed a xylotex board twice with bad connectors.  Connector name 
starts with an M.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Ben Potter]

> From: Bruce Layne [mailto:linux...@thinkingdevices.com] 
> On 12/26/2015 05:17 PM, Ben Potter wrote:
> > I tend to use Amphenol connectors...
> > They are..._slightly_  pricey though - but very convenient if you have 
> > to swap a motor out

> I've heard this advice before but I've never fully understood it. All of
the stepper motors I buy have bare leads, so I'd need to add a connector to
the stepper motor and a mating connector to the motor cable.  That's not too
bad 
> when building a machine, but the recommendation is specific to replacing
the motor.  If the motor ever needed to be replaced, I'd need to install
another connector on the motor leads.  I have several connectors in stock,
and the  
> pins and sockets and crimpers, but finding the correct connector
components is always more trouble than desoldering the old motor and
soldering a new motor.  I guess the connector strategy works for people who
buy an extra motor or > two and install the connectors while building the
machine and keep the spare motors with the machine so it's easy to plug in a
new motor.

I think it really comes down to 'how much will this downtime cost me'. And
that really depends on what the machine is being used for - I _assume_ that
the OP is building a hobby class machine, but I have seen nema17 steppers
used on industrial metrology gear. 

This approach for me comes from running and maintaining industrial tools -
where the reasoning is sound (it's not much more trouble for the
manufacturer to wire up 7500 motors instead of 7000 and keep the extra as
spares for when a customer's motor breaks). Spare drives (with quick
disconnects), cables, and motors (with connectors) are then kept in stock
and sold at usurious rates.

On my own machines I keep the more predictable spares (including prewired
motors with encoder) ready to swap out. As I've moved to heavier machines
and industrial servos I've found that the motors generally come with
connectors pre-installed. My router (using nema23 steppers) does have
soldered in motors. 

If it's a hobby machine, or one machine amongst many - then the cost of
downtime is probably less than the cost of keeping the spares. On an
industrial tool 24 hours of downtime is likely to far exceed the cost of
basic spares.

As an aside - some manufacturers (igus spring to mind) do put connectors
directly on their stepper motors.

> My only caveat with soldered connections is that they must be protected
from flexing and vibration.  The solder wicks into the stranded conductor
and creates a stress riser, and the wire can break at that point if flexed
or shaken, 
> but if you secure the cable to prevent it from flexing or vibrating you'll
have a very reliable (and inexpensive) connection.

Good advice. It can be a frustrating fault to diagnose - particularly if the
connection is intermittent and the blasted motor moves _most_ of the time.

> I'd use connectors for things like a 4th axis or rotary table that you
want to disconnect and remove when not in use.  Obviously, you should power
down before plugging or unplugging stepper motors.

I have to admit I'm curious how industrial 4th axes are set up - I presume
an extended ground pin at a minimum - or do they need a full power down of
the machine too?


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Peter Rosenblom]

ooops bad link
Here's abetter example
http://www.digikey.com/catalog/en/partgroup/d-1744-series/2069


2015-12-27 12:30 GMT+01:00 Peter Rosenblom :

> I use alot of of soldersleavves at work with good result. They are
> heatshrinks that has a soldderband inside. you heat them up as a regular
> heatshrink, and then kjeep jeating some more until the soldder metlts/wets.
> Really handy and makes for very good splices. Pare it up with a
> chemresistand glue-heatshrink and you a a very resilliand splice. Is does
> require a decent heatgun an get good repeteabillity though.
>
>
> http://www.te.com/usa-en/products/harnessing/interconnect-devices/soldersleeve-shield-terminators.html?tab=pgp-story
>
> /Peter
>
> 2015-12-27 11:54 GMT+01:00 andy pugh :
>
>> On 27 December 2015 at 06:55, Bruce Layne 
>> wrote:
>> > or you can
>> > epoxy coat the inside of the outer piece of heat shrink over soldered
>> > connections, and when you shrink it the epoxy oozes out the ends and
>> > makes a waterproof seal.
>>
>> Or you can buy heat-shrink with hot-melt glue pre-installed. A lot
>> more convenient and not that much more expensive.
>>
>> http://uk.rs-online.com/web/p/heat-shrink-cold-shrink-sleeves/4811797/
>>
>> --
>> atp
>> If you can't fix it, you don't own it.
>> http://www.ifixit.com/Manifesto
>>
>>
>> --
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>
>
--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Peter Rosenblom]

I use alot of of soldersleavves at work with good result. They are
heatshrinks that has a soldderband inside. you heat them up as a regular
heatshrink, and then kjeep jeating some more until the soldder metlts/wets.
Really handy and makes for very good splices. Pare it up with a
chemresistand glue-heatshrink and you a a very resilliand splice. Is does
require a decent heatgun an get good repeteabillity though.

http://www.te.com/usa-en/products/harnessing/interconnect-devices/soldersleeve-shield-terminators.html?tab=pgp-story

/Peter

2015-12-27 11:54 GMT+01:00 andy pugh :

> On 27 December 2015 at 06:55, Bruce Layne 
> wrote:
> > or you can
> > epoxy coat the inside of the outer piece of heat shrink over soldered
> > connections, and when you shrink it the epoxy oozes out the ends and
> > makes a waterproof seal.
>
> Or you can buy heat-shrink with hot-melt glue pre-installed. A lot
> more convenient and not that much more expensive.
>
> http://uk.rs-online.com/web/p/heat-shrink-cold-shrink-sleeves/4811797/
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 27 December 2015 at 06:55, Bruce Layne  wrote:
> or you can
> epoxy coat the inside of the outer piece of heat shrink over soldered
> connections, and when you shrink it the epoxy oozes out the ends and
> makes a waterproof seal.

Or you can buy heat-shrink with hot-melt glue pre-installed. A lot
more convenient and not that much more expensive.

http://uk.rs-online.com/web/p/heat-shrink-cold-shrink-sleeves/4811797/

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Bruce Layne]

On 12/26/2015 05:17 PM, Ben Potter wrote:
> I tend to use Amphenol connectors...
> They are..._slightly_  pricey though - but very convenient if you have to
> swap a motor out

I've heard this advice before but I've never fully understood it. All of 
the stepper motors I buy have bare leads, so I'd need to add a connector 
to the stepper motor and a mating connector to the motor cable.  That's 
not too bad when building a machine, but the recommendation is specific 
to replacing the motor.  If the motor ever needed to be replaced, I'd 
need to install another connector on the motor leads.  I have several 
connectors in stock, and the pins and sockets and crimpers, but finding 
the correct connector components is always more trouble than desoldering 
the old motor and soldering a new motor.  I guess the connector strategy 
works for people who buy an extra motor or two and install the 
connectors while building the machine and keep the spare motors with the 
machine so it's easy to plug in a new motor.

Soldered connections are very unlikely to accidentally disconnect and 
take out a stepper motor driver.  In some applications, I've been able 
to cut each motor lead an inch longer then the previous and do the same 
on the cable to make a long staggered series of soldered splices that 
are thin enough after the double layers of heat shrink to tuck into the 
T slot on extruded aluminum framing (80/20, etc).  I press in a piece of 
black plastic T slot cover for a flush installation that hides the motor 
cable.  You can't do that with a connector, other than probably four 
staggered pairs of insulated quick disconnects.

If you're using coolant or have a lot of fine dust, you can get 
waterproof connectors (there are decent cheap ones on eBay), or you can 
epoxy coat the inside of the outer piece of heat shrink over soldered 
connections, and when you shrink it the epoxy oozes out the ends and 
makes a waterproof seal.  Try to keep the epoxy away from the soldered 
connections or it'll be a real pain to replace a motor.

My only caveat with soldered connections is that they must be protected 
from flexing and vibration.  The solder wicks into the stranded 
conductor and creates a stress riser, and the wire can break at that 
point if flexed or shaken, but if you secure the cable to prevent it 
from flexing or vibrating you'll have a very reliable (and inexpensive) 
connection.

I'd use connectors for things like a 4th axis or rotary table that you 
want to disconnect and remove when not in use.  Obviously, you should 
power down before plugging or unplugging stepper motors.

You might want to wire nut the motor connections during the test phase, 
to ensure that the phase wiring is correct so you don't have a random 
patchwork of fixes for that in the configuration file, which makes major 
upgrades of LinuxCNC take a bit longer to reconfigure.  I like using the 
default configurations (or variants thereof with minimal changes) and 
wiring it so all axes move in the correct directions.  That's 
particularly important if you have a CNC router with two X motors, with 
one on each side of the table, and they move in unison.  Initially 
exercising the machine with wire nuts and extra long motor cables is 
also a good way to avoid wiring an axis only to have some motion rip out 
the motor wiring.  It's surprisingly easy to zoom in on the wiring 
details and lose sight of the big picture of what moves where and how 
the cable must be routed to allow the full range of motion.  You can 
temporarily cable tie the excess cable and move over the full range of 
motion BEFORE cutting a motor cable an inch too short.

Some people use the XLR audio cable connectors.  The Chinese versions 
are cheap.  They look a bit cheap, but they seem to work well for wiring 
stepper motors.  They produce reliable and relatively high current 
connections.




--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[tom-emc]

By the way, if you do decide to direct wire and need to penetrate a cabinet 
check out Roxtec cable glands.  They are expensive MSRP but on ebay you can get 
them relatively inexpensively: 
http://www.ebay.com/itm/New-Roxtec-Comseal-10-10-10-Position-Cable-Fitting-Kit-6-3-4-x-3-1-4-/221922887793?hash=item33aba28871:g:Ne8AAOSw14xWLQHe

They work great and are water/gas tight.  I used three of these on the lathe 
rebuild and ran all the cables through. Some images:

https://www.flickr.com/photos/37438950@N00/16733973537/in/album-72157651167328249/
https://www.flickr.com/photos/37438950@N00/16940006302/in/album-72157651167328249/

-Tom


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[John Thornton]

something like this?

http://www.amazon.com/3-5mm-Plated-Female-Headphone-Stereo/dp/B0141JQQQW/ref=sr_1_fkmr2_3?s=electronics&ie=UTF8&qid=1451174181&sr=1-3-fkmr2&keywords=Chassis+Mount+Female+3.5mm+Mono+Jacks

JT

On 12/26/2015 5:36 PM, andy pugh wrote:
> On 27 December 2015 at 00:30, John Thornton  wrote:
>> something like this?
>>
>> http://www.amazon.com/gp/product/B00EZIGTYY?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A1THAZDOWP300U
> That is what I have been using for my probe.
>
> You can get high-quality Hi-Fi or musician style ones.
>
> Many have a set of contacts that open when a plug is inserted, which
> could be a handy feature to check that there was an actual probe
> present.
>


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[tom-emc]

Neutrik connectors are surprisingly affordable and very reliable: 
http://www.neutrik.com  I used the XLR, etherncon, and powercon connectors on a 
plasma machine and they have held up over the years.
-Tom

> On Dec 26, 2015, at 6:30 PM, John Thornton  wrote:
> 
> something like this?
> 
> http://www.amazon.com/gp/product/B00EZIGTYY?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A1THAZDOWP300U
> 
> http://www.amazon.com/gp/product/B00MFRZ2SG?psc=1&redirect=true&ref_=ox_sc_act_title_2&smid=A1THAZDOWP300U
> 
> On 12/26/2015 4:55 PM, andy pugh wrote:
>> On 26 December 2015 at 23:12, John Thornton  wrote:
>>> I wonder if a 2 pole would be overkill for a probe cable?
>> I think so. There isn't much point using anything more technical than
>> a 3.5mm jack plug there.
>> 
> 
> 
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 27 December 2015 at 00:30, John Thornton  wrote:
> something like this?
>
> http://www.amazon.com/gp/product/B00EZIGTYY?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A1THAZDOWP300U

That is what I have been using for my probe.

You can get high-quality Hi-Fi or musician style ones.

Many have a set of contacts that open when a plug is inserted, which
could be a handy feature to check that there was an actual probe
present.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[John Thornton]

something like this?

http://www.amazon.com/gp/product/B00EZIGTYY?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A1THAZDOWP300U

http://www.amazon.com/gp/product/B00MFRZ2SG?psc=1&redirect=true&ref_=ox_sc_act_title_2&smid=A1THAZDOWP300U

On 12/26/2015 4:55 PM, andy pugh wrote:
> On 26 December 2015 at 23:12, John Thornton  wrote:
>> I wonder if a 2 pole would be overkill for a probe cable?
> I think so. There isn't much point using anything more technical than
> a 3.5mm jack plug there.
>


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Gene Heskett]

On Saturday 26 December 2015 17:39:11 John Thornton wrote:

> Gene got a link to one?
>
> JT



One of many similar listings.

> On 12/26/2015 4:32 PM, Gene Heskett wrote:
> > On Friday 25 December 2015 23:28:01 Jack Coats wrote:
> >> I am looking on the best way to connect my NEMA 17 steppers to the
> >> Stepper drivers.
> >>
> >> I am contemplating either direct wiring (just solder, tape, heat
> >> shrink tube) each wire back to the screw terminals on the stepper
> >> driver.
> >>
> >> Second option is using connectors, DIN (screw attach cover) or
> >> Molex push connectors near the stepper, and near the controller box
> >> where the stepper drivers reside.
> >>
> >> Suggestions?
> >
> > Where I have a well contained driver box setup, I am in favor of the
> > 4 pin, screw on connector used as a mic connector on the older
> > J.A.Pan made CB radios.  Male panel mount, matching female cable
> > pairs can be had for under a $2 bill from some sites, with some even
> > throwing in China Post for free. Decent connector for the sheckles,
> > and won't come unplugged unless you unscrew the lock ring on the
> > female.
> >
> >> Thanks in advance.  ... Jack in TN
> >>
> >> ---
> >>---  ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > Cheers, Gene Heskett
>
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Greg Bernard]

Here's one: 
http://www.parts-express.com/parts-express-cb-mic-plug-4-pin-female--090-535?utm_source=google&utm_medium=cpc&utm_campaign=plaThey
 have the Neutrik connectors also. 
+++
"Anyone who believes exponential growth can go on forever in a finite world is 
either a madman or an economist."
        -Kenneth Boulding, economist
“How unfortunate that the Earth’s first intelligent social animal is a tribal 
carnivore” 
    -E.O. Wilson, sociobiologist

 

 
  From: John Thornton 
 To: Enhanced Machine Controller (EMC)  
 Sent: Saturday, December 26, 2015 4:39 PM
 Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors
   
Gene got a link to one?

JT

On 12/26/2015 4:32 PM, Gene Heskett wrote:
> On Friday 25 December 2015 23:28:01 Jack Coats wrote:
>
>> I am looking on the best way to connect my NEMA 17 steppers to the
>> Stepper drivers.
>>
>> I am contemplating either direct wiring (just solder, tape, heat
>> shrink tube) each wire back to the screw terminals on the stepper
>> driver.
>>
>> Second option is using connectors, DIN (screw attach cover) or Molex
>> push connectors near the stepper, and near the controller box where
>> the stepper drivers reside.
>>
>> Suggestions?
>>
> Where I have a well contained driver box setup, I am in favor of the 4
> pin, screw on connector used as a mic connector on the older J.A.Pan
> made CB radios.  Male panel mount, matching female cable pairs can be
> had for under a $2 bill from some sites, with some even throwing in
> China Post for free. Decent connector for the sheckles, and won't come
> unplugged unless you unscrew the lock ring on the female.
>  
>> Thanks in advance.  ... Jack in TN
>>
>> --
>>  ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


   
--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 26 December 2015 at 23:32, Gene Heskett  wrote:
> Where I have a well contained driver box setup, I am in favor of the 4
> pin, screw on connector used as a mic connector on the older J.A.Pan
> made CB radios.


This style? 
http://www.maplin.co.uk/p/maplin-8-way-audio-locking-connector-line-socket-fk30h

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 26 December 2015 at 23:12, John Thornton  wrote:
> I wonder if a 2 pole would be overkill for a probe cable?

I think so. There isn't much point using anything more technical than
a 3.5mm jack plug there.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Greg Bernard]

Here's one: 
http://www.parts-express.com/parts-express-cb-mic-plug-4-pin-female--090-535?utm_source=google&utm_medium=cpc&utm_campaign=plaThey
 have the Neutrik connectors also. 
+++
"Anyone who believes exponential growth can go on forever in a finite world is 
either a madman or an economist."
        -Kenneth Boulding, economist
“How unfortunate that the Earth’s first intelligent social animal is a tribal 
carnivore” 
    -E.O. Wilson, sociobiologist

 

 
  From: John Thornton 
 To: Enhanced Machine Controller (EMC)  
 Sent: Saturday, December 26, 2015 4:39 PM
 Subject: Re: [Emc-users] Rookie Question - Direct wire or connectors
   
Gene got a link to one?

JT

On 12/26/2015 4:32 PM, Gene Heskett wrote:
> On Friday 25 December 2015 23:28:01 Jack Coats wrote:
>
>> I am looking on the best way to connect my NEMA 17 steppers to the
>> Stepper drivers.
>>
>> I am contemplating either direct wiring (just solder, tape, heat
>> shrink tube) each wire back to the screw terminals on the stepper
>> driver.
>>
>> Second option is using connectors, DIN (screw attach cover) or Molex
>> push connectors near the stepper, and near the controller box where
>> the stepper drivers reside.
>>
>> Suggestions?
>>
> Where I have a well contained driver box setup, I am in favor of the 4
> pin, screw on connector used as a mic connector on the older J.A.Pan
> made CB radios.  Male panel mount, matching female cable pairs can be
> had for under a $2 bill from some sites, with some even throwing in
> China Post for free. Decent connector for the sheckles, and won't come
> unplugged unless you unscrew the lock ring on the female.
>  
>> Thanks in advance.  ... Jack in TN
>>
>> --
>>  ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


   
--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[John Thornton]

Gene got a link to one?

JT

On 12/26/2015 4:32 PM, Gene Heskett wrote:
> On Friday 25 December 2015 23:28:01 Jack Coats wrote:
>
>> I am looking on the best way to connect my NEMA 17 steppers to the
>> Stepper drivers.
>>
>> I am contemplating either direct wiring (just solder, tape, heat
>> shrink tube) each wire back to the screw terminals on the stepper
>> driver.
>>
>> Second option is using connectors, DIN (screw attach cover) or Molex
>> push connectors near the stepper, and near the controller box where
>> the stepper drivers reside.
>>
>> Suggestions?
>>
> Where I have a well contained driver box setup, I am in favor of the 4
> pin, screw on connector used as a mic connector on the older J.A.Pan
> made CB radios.  Male panel mount, matching female cable pairs can be
> had for under a $2 bill from some sites, with some even throwing in
> China Post for free. Decent connector for the sheckles, and won't come
> unplugged unless you unscrew the lock ring on the female.
>   
>> Thanks in advance.  ... Jack in TN
>>
>> --
>>  ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Gene Heskett]

On Friday 25 December 2015 23:28:01 Jack Coats wrote:

> I am looking on the best way to connect my NEMA 17 steppers to the
> Stepper drivers.
>
> I am contemplating either direct wiring (just solder, tape, heat
> shrink tube) each wire back to the screw terminals on the stepper
> driver.
>
> Second option is using connectors, DIN (screw attach cover) or Molex
> push connectors near the stepper, and near the controller box where
> the stepper drivers reside.
>
> Suggestions?
>
Where I have a well contained driver box setup, I am in favor of the 4 
pin, screw on connector used as a mic connector on the older J.A.Pan 
made CB radios.  Male panel mount, matching female cable pairs can be 
had for under a $2 bill from some sites, with some even throwing in 
China Post for free. Decent connector for the sheckles, and won't come 
unplugged unless you unscrew the lock ring on the female.
 
> Thanks in advance.  ... Jack in TN
>
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[Ben Potter]

A lot depends on your machine, if your motors are static then direct
connection is probably OK. If they're moving I prefer connectors through a
mounting box located near the motor.
I haven't used any motors that small - I'm guessing 3d printer?

I tend to use Amphenol connectors (either 62GB/MIL-DTL-26482 or
MIL-DTL-38999) on any connectors at the motor end. The drive end tends to be
bare connectors, which is simple enough to change.
They are... _slightly_ pricey though - but very convenient if you have to
swap a motor out

These are generally on NEMA34 or 1kW+ servo's though. 

-Original Message-
From: Jack Coats [mailto:j...@coats.org] 
Sent: 26 December 2015 04:28
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] Rookie Question - Direct wire or connectors

I am looking on the best way to connect my NEMA 17 steppers to the Stepper
drivers.

I am contemplating either direct wiring (just solder, tape, heat shrink
tube) each wire back to the screw terminals on the stepper driver.

Second option is using connectors, DIN (screw attach cover) or Molex push
connectors near the stepper, and near the controller box where the stepper
drivers reside.

Suggestions?

Thanks in advance.  ... Jack in TN


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[John Thornton]

I wonder if a 2 pole would be overkill for a probe cable?

JT

On 12/26/2015 3:35 PM, andy pugh wrote:
> On 26 December 2015 at 04:28, Jack Coats  wrote:
>
>> I am contemplating either direct wiring (just solder, tape, heat
>> shrink tube) each wire back to the screw terminals on the stepper
>> driver.
> Direct wire is cheaper and more reliable. But you can almost guarantee
> that if you make permanent connections then you will need to
> disconnect them.
>
>> Second option is using connectors, DIN (screw attach cover) or Molex
>> push connectors near the stepper,
> Connectors cost more money (sometimes an awful lot of money). But you
> can almost guarantee that if you use connectors then you will never
> need to disconnect them.
>
> For motors I have started to use the Neutrik 4-pole speaker
> connectors. They are not very expensive, they have a nice feel of
> quality (much more than DIN) and are rated at 20A or 40A.
>


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[John Thornton]

Those are pretty cool connectors.

On 12/26/2015 3:35 PM, andy pugh wrote:
> Neutrik 4-pole speaker
> connectors


--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Rookie Question - Direct wire or connectors

[andy pugh]

On 26 December 2015 at 04:28, Jack Coats  wrote:

> I am contemplating either direct wiring (just solder, tape, heat
> shrink tube) each wire back to the screw terminals on the stepper
> driver.

Direct wire is cheaper and more reliable. But you can almost guarantee
that if you make permanent connections then you will need to
disconnect them.

> Second option is using connectors, DIN (screw attach cover) or Molex
> push connectors near the stepper,

Connectors cost more money (sometimes an awful lot of money). But you
can almost guarantee that if you use connectors then you will never
need to disconnect them.

For motors I have started to use the Neutrik 4-pole speaker
connectors. They are not very expensive, they have a nice feel of
quality (much more than DIN) and are rated at 20A or 40A.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Rookie Question - Direct wire or connectors

[Jack Coats]

I am looking on the best way to connect my NEMA 17 steppers to the
Stepper drivers.

I am contemplating either direct wiring (just solder, tape, heat
shrink tube) each wire back to the screw terminals on the stepper
driver.

Second option is using connectors, DIN (screw attach cover) or Molex
push connectors near the stepper, and near the controller box where
the stepper drivers reside.

Suggestions?

Thanks in advance.  ... Jack in TN

--
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users