Re: [Emc-users] EDM Small Hole Drilling

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The laser drilling was the first thing I thought of too.  Pratt & Whitney uses 
this process to drill similar size holes in the turbine blades.  The keep the 
slag out of the holes they fill the interior of the blade with epoxy:  Upon 
burn through the epoxy virtually explodes, blowing and slag or burr-like recast 
out of the hole.

N. Christopher

> On Feb 10, 2017, at 5:16 PM, andy pugh  wrote:
> 
>> On 10 February 2017 at 21:59, Jim Craig  wrote:
>> The more I think about the actual process and needs of the machine I am
>> thinking that a small hole EDM drilling head would be better for this
>> application.
> 
> 
> Maybe consider lasers (and sharks?) too:
> https://www.oxfordlasers.com/laser-micromachining/applications/fuel-injector-production/
> 
> 
> -- 
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
> 
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Re: [Emc-users] Powerhawk VTC-150 Mill Conversion Nearing Completion

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Hi Chris, 

Congratulations! It looks good. I remember having to cover the table with thick 
cardboard in case it dropped the tool (which it did) when we were just getting 
into it.  It's come a long way.

Ian

Sent from my iPhone

 On Jun 4, 2015, at 11:01 AM, Chris Kelley chris.kel...@txrxlabs.org wrote:
 
 Greetings All,
 
 For those who went to the LinuxCNC Fest last year here in at TX/RX Labs in
 Houston, you might remember the big Powerhwak mill that we were in the
 middle of converting.
 
 Well, we kept at it and now that schools out for the summer, I've been
 hitting it really hard for the past couple of weeks.
 
 This morning I finished debugging the ClassicLadder program for the tool
 changer. (I gave up on using Comp to run the changer.)
 
 Here's a video:  https://youtu.be/yJlhgf6DAek
 
 -Chris K.
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Re: [Emc-users] Mill coordinates setup

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Marius,

What you've described is a common setup.  My Haas mill is set up that way for 
example.  It's simple to remember that all movements from home are in the 
negative direction that way, instead of a mix of negative for the Z and 
positive for the X or Y axes.

Ian

Sent from my iPhone

 On Mar 20, 2015, at 12:47 PM, Marius Liebenberg mar...@mastercut.co.za 
 wrote:
 
 A question for the the avid machinists among us (not me that much).
 I have my mill setup to have the x axis travel along the table (long 
 axis) and the Y axis is the short travel. My homing sequence brings the 
 table all the way left and forward to put the tool at the right hand 
 back corner.
 
 If that is the right way of doing it, is the travel negative for both 
 axis from home or is it done another way?
 
 
 
 -
 Regards / Groete
 
 Marius D. Liebenberg
 +27 82 698 3251
 +27 12 746 6064
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[Emc-users] Inverting lathe X axis arrow key

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Hi Guys, 

I am tuning the axes on my rear-mounted turret lathe and am having problems 
with the X axis. In the current state, pressing 'up arrow' on the keyboard 
moves the turret forward (towards me) instead of back. The diameter readout 
increases as it should and any MDI motion commands in the X positive direction 
result in a correct move of the turret towards the back/away from me.

If the lathe were a front-mounted post type, everything would be perfect, but 
since it's a rear-mounted post type the arrow is backwards.

I'd like to be able to press the up arrow key and have the turret move away 
from me without affecting any of the other things that are working correctly.  
Anyone have a solution? Thanks, 

Ian

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[Emc-users] Houston LinuxCNC Fest

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I'm flying home today after a great week in Houston at the LinuxCNC Fest.  I 
had the opportunity to meet some of the developers working hard to keep up with 
all the demands made on them by our community.

They were each very helpful and patiently answered all the questions that I and 
others asked.  They also listened to the input that we gave them as 'average' 
users.  I was impressed with their patience and generosity, so a big thanks to 
them for their efforts.

Also,  thanks to TX/RX Labs for playing host.  We got to help Roland and Chris 
retrofit a Burgmaster Hawk mill, though they had it pretty much under control 
when we got there.  They've also got an interesting stable of machines 
running-or soon to run- Linuxcnc.

All in all, it's been a great trip.  I can't wait to attend the next one.

Ian Penn
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