On Friday 05 June 2020 21:36:00 Gregg Eshelman via Emc-users wrote:
> Elmer's disappearing purple school glue stick seems to be a favorite
> with 3D printers. I've used Duck brand archival acid free glue stick.
> Rub all over the build plate, drag a wet paper towel around to smooth
> it. By the
Is the test block over sized by the same amount if you measure one block or
4? Or is it always over sized by the same amount?
This will tell you if the scale is wrong or if the oversize is just that
the skin is thicker and more rough than it should be. There should be a
constant AND a
Elmer's disappearing purple school glue stick seems to be a favorite with 3D
printers. I've used Duck brand archival acid free glue stick.
Rub all over the build plate, drag a wet paper towel around to smooth it. By
the time the bed heats up the glue is dry. When the bed cools the print pops
This guy printed one for his car's engine. It worked, for a bit. 3D Printed Car
Belt | Will It Run?
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3D Printed Car Belt | Will It Run?
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On Friday, June 5, 2020, 1:14:39 PM MDT, andy pugh
wrote:
On Fri, 5 Jun 2020 at 20:08, Chris
On Friday 05 June 2020 13:44:22 Karl Jacobs wrote:
> Hi Gene,
>
> take the attached file for 5mm calibration steps and put it into Cura
> for slicing. This is about as simple as it gets for initial tests.
This I take it is to be used to diddle a xyz scales? its between .1
and .2mm oversize in
Producing a path for wire edm is the same as producing a path for a mill.
It will be difficult to find a cam system to produce the path to cut with
the rod bending machine.
On Fri, Jun 5, 2020, 2:45 PM N wrote:
> > I think LinuxCNC would be able to easily drive the shown machine. I
> believe
>
On Sat, 6 Jun 2020 at 01:01, Chris Albertson
wrote:
> Is it "wrong" on have this unreliable button?
No, it is only wrong to rely on it.
If you are being eaten by the machine you need a had and accessble e-stop.
If you are sat on the couch and it has all gione wrong, then the web
interface is
So the e-stop should be mounted to the physical machine and not be a button
on your cell phone. Makes sense.
But an interesting question is this: Let's say you have a foolproof e_stop
mounted to the machine and then one day you build a remote monitoring web
page that can live stream video form
On Sat, 6 Jun 2020 at 00:32, Chris Albertson
wrote:
For "adhesion method" I choose "skirt." it seems this would be
> usless because it draws a circle aroubd the part without even touching.
> But I always look and visually check the quality of the circle. If it is
> flat on top and not gaps
For bad adhesion, glue sicks work well. The glue is thick and
telegraphas a pattern to the part, Smoothing with wter helps. and then
the heated bed dies the water. Covering the bed with blue paiter's tape
works if you clean the tape after with alcohol.
The it thing is nozel hight.The
On Friday 05 June 2020 17:51:33 andy pugh wrote:
> On Fri, 5 Jun 2020 at 21:34, Gene Heskett wrote:
> > The used area of the pad is wearing smooth.
>
> Move the part to somewhere else in the bed in Cura.
Hadn't thought of that, thanks.
Cheers, Gene Heskett
--
"There are four boxes to be used
On Friday 05 June 2020 17:05:45 Chris Albertson wrote:
> First off the motor is limited to 3 Nm or whatever. It can not crush
> plastic. The worst case a pulley will see is a stalled out drive
> motor and after the motor stops it can not pull harder. So maybe "10
> pounds max" is all the
On Friday 05 June 2020 17:05:45 Chris Albertson wrote:
> First off the motor is limited to 3 Nm or whatever. It can not crush
> plastic. The worst case a pulley will see is a stalled out drive
> motor and after the motor stops it can not pull harder. So maybe "10
> pounds max" is all the
First off the motor is limited to 3 Nm or whatever. It can not crush
plastic. The worst case a pulley will see is a stalled out drive motor
and after the motor stops it can not pull harder. So maybe "10 pounds
max" is all the part can ever see.
That said what you want to adjust is the "wall
On 2020-06-05 10:16, Chris Albertson wrote:
On Fri, Jun 5, 2020 at 9:58 AM N wrote:
USB should be able to handle real time but think it is complex which might
be a reason to avoid it and there are no support in Linuxcnc.
Mixing USB into RT kernel space is not something I would recommend due
You built it? Cool.
If you can run it with LCNC, so much the better.
I'd like to know more about this when you have the time.
Martin
From: Bari
I build all my own custom printers. Why I am working with LCNC for all
the control.
On 6/5/20 3:05 PM, Martin
On Friday 05 June 2020 15:25:49 Thaddeus Waldner wrote:
> > What generator software? Openscad, using the thingiverse parametric
> > .scad files, cannot render a shaft of more than 9.9mm's, else we
> > could do this by enlarging the shaft, so all we'ed have to print was
> > a ring of teeth.
>
>
I just read the code you posted. My opinion now is that these modeled
pulleys are "good enough" if you print them on a machine that has 0.1mm
accuracy.Belts are made of rubber and will work if the fit is even
close.
But real pulleys you buy have better tooth profiles. I'm reading about GT3
From: Gene Heskett
> motor_shaft = 5.2; // NEMA17 motor shaft exact diameter = 5
>Go ahead, set this to 10.0 or above, nothing happens when you click on
>render.
> m3_dia = 3.2; // 3mm hole diameter
> m3_nut_hex = 1; // 1 for hex, 0 for square nut
>
I build all my own custom printers. Why I am working with LCNC for all
the control.
On 6/5/20 3:05 PM, Martin Dobbins wrote:
I'm really curious about the printer you are using, I don't recognize it from
the pictures what brand is it?
Martin
From: Bari
If
I'm really curious about the printer you are using, I don't recognize it from
the pictures what brand is it?
Martin
From: Bari
If you have a SLA printer you can do this if it uses top down
projection. You can stop during the photopolymer print process and add
> I put this on a separate thread from the LinuxCNC 3D printing one. But I
> see this same problem MANY times. It seems so obvious (after the fact) but
> I still see this problem with professional work. There is a guy on another
> list printing parts that are copies of stamped 1.0mm thick sheet
From: Gene Heskett
Sent: Friday, June 5, 2020 2:27 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Openscad
On Friday 05 June 2020 14:08:46 Martin Dobbins wrote:
> Changed the subject :-)
>
> Gene Heskett wrote:
> >Now, looking at the
Maybe just naivete here, but I was thinking about a sacrificial raft as the
base. If you are building teeth in layers from there, surely they would be
self supporting as long as they did not have to support the upper flange? You
don't need an upper flange if that will ultimately be another
Not, stupid idea.I think I will try making a PLA belt. If nothing
else it will be used to verify belt size before ordering. and I will post
the test on Youtube. Failures make for good video.
But it could work, I have a spool of medium-soft TPU. The problem is it
stretches.
So I print a
In my experience, the plastic build sheets that ship with most of the
low cost printers are OK for several PLA prints but the surface degrades
quickly. The adhesive backing fails and the plastic peels off the build
plate when trying to print ABS on a 110C bed, and that's a great
opportunity to
> I think LinuxCNC would be able to easily drive the shown machine. I believe
> it will be VERY difficult to find a CAM system capable of creating the
> gcode program to describe the path.
Somethin able to produce a path for EDM wirecutting?
> On Wed, Jun 3, 2020, 12:54 PM Leonardo Marsaglia
>
On any kind of pendant that has an ESTOP the button must physically interrupt
the circuit. So if you are using USB, for example the cable needs to have two
extra conductors for the NC ESTOP circuit.
Doesn't matter if the Pendant is a full featured CNC controller or just a
simple unit with an
> a few years ago i switched my lathe to a 3 phase motor and vfd
> i added a 10k pot to the lathe panel
> recently the motor speed started fluctuating
> i switched the vfd back to using the pot on it's front panel
> no more fluctuation
> can someone recommend a 10k pot that will handle the
> ...
> USB does have a short maximum cable length but it should work. The
> example linked above would work for WiFi or BlueTooth too. Once you see
> how it works the method of communication is unimportant, you are simply
> setting and reading HAL pins from userspace.
You know what happen if
> ...
> I think e-stop is a desired feature but it will never be as reliable as one
> that is wired to the machine that does not depend on computer software.
Agree. Something simple to check, have seen there are safety classed relays but
are not sure about the standards.
Safety Integrity Lev
On Friday 05 June 2020 14:08:46 Martin Dobbins wrote:
> Changed the subject :-)
>
> Gene Heskett wrote:
> >Now, looking at the sprocket code in openscad, it will not render a
> >motor shaft over 9.9mm, using this line of code, no clue what
> > language this is, but its a .scad file, part of the
> What generator software? Openscad, using the thingiverse parametric .scad
> files, cannot render a shaft of more than 9.9mm's, else we could do this
> by enlarging the shaft, so all we'ed have to print was a ring of teeth.
Attached is a picture of a 41T GT2 2mm pulley with a 54mm shaft
If you have a SLA printer you can do this if it uses top down
projection. You can stop during the photopolymer print process and add
components for support as long as they don't shadow any layer above.
On 6/5/20 9:50 AM, Martin Dobbins wrote:
Quick thought on the teeth with a metal flange.
On Fri, Jun 5, 2020 at 10:44 AM Gene Heskett wrote:
> On Friday 05 June 2020 10:50:38 Martin Dobbins wrote:
>
> > Quick thought on the teeth with a metal flange. Would it be possible
> > to 3d print just the teeth and then have two metal flanges that make a
> > hub and "enclose" (sandwich) the
On Friday 05 June 2020 13:54:44 Martin Dobbins wrote:
>
> From: Gene Heskett
>
> On Friday 05 June 2020 10:50:38 Martin Dobbins wrote:
> > Quick thought on the teeth with a metal flange. Would it be
> > possible to 3d print just the teeth and then have two metal
On Friday 05 June 2020 13:48:12 Gene Heskett wrote:
> On Friday 05 June 2020 11:13:19 Dave Matthews wrote:
> > On Fri, Jun 5, 2020 at 8:34 AM Gene Heskett
>
> wrote:
> > > After doing that one, i took the right post slider loose and
> > > loosened its fit on the vertical, as I noted there were Z
On Fri, 5 Jun 2020 at 20:08, Chris Albertson
wrote:
> The broken
> plastic band under the pulley is the sacrificial support that Cura places
> between the flanges.
That has me wondering how long a 3D printed drive belt would last.
(I have these stupid ideas so that you don't have to)
--
On 6/4/20 8:01 PM, Gene Heskett wrote:
> Someone was right, I did have "mold" checked.
You can save yourself all kinds of grief if you get in the habit of
previewing each print in Cura before printing it, so you can see exactly
what the printer will print, layer by layer. It's a great way to
On Friday 05 June 2020 13:44:22 Karl Jacobs wrote:
> Hi Gene,
>
> take the attached file for 5mm calibration steps and put it into Cura
> for slicing. This is about as simple as it gets for initial tests.
> Download
> https://www.thingiverse.com/thing:763622 for the benchy-boat torture
> test.
Changed the subject :-)
Gene Heskett wrote:
>Now, looking at the sprocket code in openscad, it will not render a
>motor shaft over 9.9mm, using this line of code, no clue what language
>this is, but its a .scad file, part of the parametric pulley kit.
From: Gene Heskett
On Friday 05 June 2020 10:50:38 Martin Dobbins wrote:
> Quick thought on the teeth with a metal flange. Would it be possible
> to 3d print just the teeth and then have two metal flanges that make a
> hub and "enclose" (sandwich) the teeth?
On Friday 05 June 2020 11:13:19 Dave Matthews wrote:
> On Fri, Jun 5, 2020 at 8:34 AM Gene Heskett
wrote:
> > After doing that one, i took the right post slider loose and
> > loosened its fit on the vertical, as I noted there were Z movements
> > that weren't making to the other end of the bar.
Hi Gene,
take the attached file for 5mm calibration steps and put it into Cura
for slicing. This is about as simple as it gets for initial tests.
Download
https://www.thingiverse.com/thing:763622 for the benchy-boat torture
test. After you optimized that, you are a master.
Let me tell you that I
On Friday 05 June 2020 10:50:38 Martin Dobbins wrote:
> Quick thought on the teeth with a metal flange. Would it be possible
> to 3d print just the teeth and then have two metal flanges that make a
> hub and "enclose" (sandwich) the teeth?
>
> Martin
>
>
> From:
On Friday 05 June 2020 08:51:56 andy pugh wrote:
> On Fri, 5 Jun 2020 at 13:34, Gene Heskett
> wrote:
>
> But before I try another 10 hour print, I'd like to see an improved
> much
>
> > better filled tooth profile, my guess is that its 10% or less, no
> > high strength fill behind what might be
On Fri, Jun 5, 2020 at 9:58 AM N wrote:
> USB should be able to handle real time but think it is complex which might
> be a reason to avoid it and there are no support in Linuxcnc.
Andy posted a clear example that shows a simple way to move data from USB
to LinuxCNC.
USB should be able to handle real time but think it is complex which might be a
reason to avoid it and there are no support in Linuxcnc. There are however a
lot of cheap development boards available which may make it a very cheap and
good choice. There are standard protocol for keyboard and
On Fri, Jun 5, 2020 at 8:34 AM Gene Heskett wrote:
>
>
> After doing that one, i took the right post slider loose and loosened its
> fit on the vertical, as I noted there were Z movements that weren't
> making to the other end of the bar.
>
> And raised the tension in the x belt which turned out
Does it need cleaning? It might be a simple fix to spray some "contact
cleaner" inside of the pot (often you can spray some in where the contacts
and back cover don't quite meet)
Might be worth the try?
On Fri, Jun 5, 2020 at 10:53 AM grumpy--- via Emc-users <
emc-users@lists.sourceforge.net>
a few years ago i switched my lathe to a 3 phase motor and vfd
i added a 10k pot to the lathe panel
recently the motor speed started fluctuating
i switched the vfd back to using the pot on it's front panel
no more fluctuation
can someone recommend a 10k pot that will handle the vibration
Quick thought on the teeth with a metal flange. Would it be possible to 3d
print just the teeth and then have two metal flanges that make a hub and
"enclose" (sandwich) the teeth?
Martin
From: Chris Albertson
>
> Thats cute. But that would likely need to be
I have actually been wondering about the same/similar thing, on how to
feed information into hall.
On 6/4/20 2:33 PM, Chris Albertson wrote:
I'd like to build a handheld pendant controller. I have some ideas about
how it should work. One thing I want is an LCD screen. This could evolve
On Fri, 5 Jun 2020 at 13:34, Gene Heskett wrote:
But before I try another 10 hour print, I'd like to see an improved much
> better filled tooth profile, my guess is that its 10% or less, no high
> strength fill behind what might be called teeth. I'd like to see a 100%
> fill for at least 4mm
After doing that one, i took the right post slider loose and loosened its
fit on the vertical, as I noted there were Z movements that weren't
making to the other end of the bar.
And raised the tension in the x belt which turned out to be slack enough
it was just laying on the right end
On Fri, 5 Jun 2020 at 07:40, John Dammeyer wrote:
Imagine if every car you got into enhanced your experience on which pedal
> applied the brakes. If it even had a pedal for that.
R1 and Gas-Gas - right
Ner-a-Car - left
Fire Engine - left of three
Some work cars - middle of three
Other work
On Thursday 04 June 2020 21:55:21 Chris Albertson wrote:
> On Thu, Jun 4, 2020 at 5:03 PM Gene Heskett wrote:
> > Thats cute. But that would likely need to be made on a resin printer
> > as this one from what I've seen so far, simply cannot do that fine a
> > detail.
>
> My "cut" on this would
> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: June-04-20 11:16 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] How to get data to HAL from USB, serial or socket?
>
> On Thu, Jun 4, 2020 at 2:58 PM John Dammeyer wrote:
>
On Thu, Jun 4, 2020 at 2:58 PM John Dammeyer wrote:
>
> John,
think the technical how to do it is clear now. The bigger problem is the
design of the user interface. The simplest kind is a "direct action" where
the mill moves in sync with a handwheel. The next step is where the user
dials in
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