[ML-General] Electrostatic Discharge Machine

[cameron.kellough]

.012 is pretty small.  To drill this would likely require a sensitive drill like

http://www.dumorecorp.com/sensitive-drill-presses#Specifications 

The key point being that the 17000 rpms the dumore runs at is probably the minimum required.  A quick perusal of available drill bits suggests significant depth will be hard to achieve.  

Other options are edm already discussed and laser drilling though the depth for laser drilling is only 2mm.

http://www.oxfordlasers.com/laser-micromachining/laser-micro-drilling/sub-contract-micro-drilling/


What about brazing a hypodermic needle into a reasonably sized hole.

--Cameron
Sent from my Samsung Galaxy Note®|PRO

-------- Original message --------
From: James Fluhler <j.fluhler at gmail.com> 
Date:05/27/2015  8:14 PM  (GMT-06:00) 
To: General discussion about makerslocal <general at lists.makerslocal.org> 
Subject: Re: [ML-General] Electrostatic Discharge Machine 

If you needed a 12mil hole through something less thick I've got access to an xy milling table that could do it easily but it's setup for milling circuit boards not 1.5" thick pipe haha

James F.

On May 27, 2015, at 7:26 PM, Erik Arendall <earendall at gmail.com> wrote:

Yeah a .012" hole is a tough one. EDM would give you a good finish and a true hole. Burr free too. I've contemplated a build of one before.

On May 27, 2015 7:20 PM, "david" <ainut at knology.net> wrote:
just buy some Hilsch vortex tubes.




On 05/27/15 19:18, Jacob Chancery wrote:
I should've said Electrical instead of Electrostatic.

http://en.m.wikipedia.org/wiki/Electrical_discharge_machining

I want to cut small (0.012” throat diameter) planar de Laval nozzles in a piece of 1.5” schedule 10 pipe to spin a garret GT1548 turbine.

So far I've gotten a few no-quotes, a few ”that can't be done” and one unofficial ”more than $10,000” responses.

On May 27, 2015 6:44 PM, "Erik Arendall" <earendall at gmail.com> wrote:
They are interesting machines. What is your purpose for the machine? 
On May 27, 2015 6:33 PM, "clayton pannell" <clayton.pannell at gmail.com> wrote:
Creates ESD to cut metal

On May 27, 2015 5:00 PM, "Daniel Valdez" <smeeon at gmail.com> wrote:
wait.. is this to cause ESD or to dissipate it? I'm confused and intrigued at the same time. 

On Wed, May 27, 2015 at 4:51 PM, Jacob Chancery <jacob.chancery at gmail.com> wrote:
Anyone on the list ever built their own EDM machine?

I'm thinking about buying this starter kit:
http://www.homebuiltedmmachines.com/index.php?page=buy&product=pulse_edm_starters_kit


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-- 
Daniel Valdez
Audio Insight
Huntsville, AL
Office 256-885-1995
Cell   256-783-6983
Fax   256-885-1994
www.audio-insight.com

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