Since it's summer and the group is kind of quiet I thought I'd post a link to a
short video I made last month. I bought a new tool cabinet for under my lathe
that ended up being about 1" too tall and I'd run out of room on one adjustable
foot to raise the lathe higher.
So I made a wooden fram
bject: Re: [Emc-users] Power Tapping
Where are you located?
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> Subject: Re: [Emc-users] Power Tapping
>
> On Wednesday 07 July 2021 20:45:21 John Dammeyer wrote:
>
> > Thanks
> > So how did you work out how far it overshoots?
> > John
> >
> > > From: jrmitchellj [mailto:jrmitche...@gmai
On Wednesday 07 July 2021 20:45:21 John Dammeyer wrote:
> Thanks
> So how did you work out how far it overshoots?
> John
>
> > From: jrmitchellj [mailto:jrmitche...@gmail.com]
> >
> > Spiral flute taps for blind holes.
> > Spiral point taps for through holes.
> > For aluminum, I use uncoated, or b
I got a tip from Gene H. on a way to use HALScope to watch the spindle
position, and trigger from the spindle stop. It has been a while, so I am
not recalling all the details at the moment.
--J. Ray Mitchell Jr.
jrmitche...@gmail.com
“I predict future happiness for Americans, if they can preve
Sounds like that bit of Heath Robinson (since you're in the UK) mess was just
to avoid paying royalties to Clarence W. Spicer.
https://www.machineservice.com/products/universal-joints/history-behind-the-universal-joint/
On Wednesday, July 7, 2021, 7:30:05 PM MDT, andy pugh
wrote:
On Thu
Where are you located?
> -Original Message-
> From: Gerrit Visser [mailto:gerr...@psgv.ca]
> Sent: July-07-21 7:18 PM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] Power Tapping
>
> I should have added YG-1's Canadian office in
From: John Dammeyer
Sent: July 7, 2021 8:52 PM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] Power Tapping
Well in that case it's cheaper than the Swiss one. What I have found so far
is that the cheap metric tap+die+handle was fine for the occasional hole
but really
Great story. Impressive repair.
Now I have two more places to visit when travel becomes easy again.
John
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-07-21 6:27 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users
On Thu, 8 Jul 2021 at 00:39, John Dammeyer wrote:
> But for metal a spiral, or at least spiral point is a must I think. Time to
> do a bit more tuning but impressed as how well it works.
I power-tapped a bunch of holes into EN24 with a conventional
straight-flute hand tap at the weekend, thoug
I've successfully used metric (M4) spiral point YG-1 taps from Amazon.ca.
-Original Message-
From: John Dammeyer
Sent: July 7, 2021 8:52 PM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] Power Tapping
Well in that case it's cheaper than the Sw
a treat.
John
> -Original Message-
> From: Gerrit Visser [mailto:gerr...@psgv.ca]
> Sent: July-07-21 5:21 PM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] Power Tapping
>
> YG-1 is hardly no-name.
>
> https://www.yg1.kr/main.as
Thanks
So how did you work out how far it overshoots?
John
> From: jrmitchellj [mailto:jrmitche...@gmail.com]
> Spiral flute taps for blind holes.
> Spiral point taps for through holes.
> For aluminum, I use uncoated, or bright HSS taps.
>
> I have been doing alot of m2 & 4-40 holes with rigid m
YG-1 is hardly no-name.
https://www.yg1.kr/main.asp
Gerrit
-Original Message-
From: John Dammeyer
Sent: July 7, 2021 7:37 PM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] Power Tapping
It's an Amazon Prime product so shipping is free but y
; But for metal a spiral, or at least spiral point is a must I think. Time
> to do a bit more tuning but impressed as how well it works.
>
> John
>
>
> > -Original Message-
> > From: andy pugh [mailto:bodge...@gmail.com]
> > Sent: July-07-21 4:06 PM
> &g
g but impressed as how well it works.
> >
> > John
> >
> >
> > > -Original Message-
> > > From: andy pugh [mailto:bodge...@gmail.com]
> > > Sent: July-07-21 4:06 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re
piral, or at least spiral point is a must I think. Time
> to do a bit more tuning but impressed as how well it works.
>
> John
>
>
> > -Original Message-
> > From: andy pugh [mailto:bodge...@gmail.com]
> > Sent: July-07-21 4:06 PM
> > To: Enhanced Machi
--Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-07-21 4:06 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Power Tapping
>
> On Wed, 7 Jul 2021 at 23:09, John Dammeyer wrote:
> >
> > As I get closer to being able to t
--Original Message-
> From: John Dammeyer
> Sent: July 7, 2021 6:06 PM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Power Tapping
>
> As I get closer to being able to try power tapping I'm wondering if this
> sort of tap is suitable?
>
On Wed, 7 Jul 2021 at 23:09, John Dammeyer wrote:
>
> As I get closer to being able to try power tapping I'm wondering if this sort
> of tap is suitable?
> https://www.amazon.ca/gp/product/B00F8T55GC/ref=ox_sc_act_title_3
It looks expensive for a no-name tool.
https://www.zoro.co.uk/shop/cuttin
Delrin is more forgiving than aluminum and machinable wax is even more so.
At $10-20 per tap it is something to consider when testing.
-Original Message-
From: John Dammeyer
Sent: July 7, 2021 6:06 PM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] Power Tapping
As I get
Thanks John,
There will be lots of 'first test runs'.
At the moment I'm still running the AC Servo with PWM mostly because I've been
trying to learn a bit more about HAL PID programming. The pulleys from motor
to spindle are V Belt and not quite the same size so once I switch over to
step/
Maybe drill your hole oversize for the first test run so it doesn't have to
cut much.
John Figie
On Wed, Jul 7, 2021 at 5:09 PM John Dammeyer wrote:
> As I get closer to being able to try power tapping I'm wondering if this
> sort of tap is suitable?
> https://www.amazon.ca/gp/product/B00F8T55
As I get closer to being able to try power tapping I'm wondering if this sort
of tap is suitable?
https://www.amazon.ca/gp/product/B00F8T55GC/ref=ox_sc_act_title_3
Or is it garbage that will break in aluminium castings or mild steel on the
first try?
I'm at the point with encoder feedback t
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