Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

TO-3 Drilling Jig
TO-3 Drilling Jig
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th February 2005, 03:29 PM   #1
BrianDonegan is offline BrianDonegan  United States
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
TO-3 Drilling Jig
Default TO-3 Drilling Jig

I am thinking of producing a jig for drilling the heatsink holes needed for TO-3 devices.

It will be a CNC-milled piece of aluminum roughly the size of a TO-3 device with four drill bushings (will make it as close as possible, may be larger to accomidate the two end bushings). You place the jig where you want the device on your heatsink and use a hand drill to drill the holes. Simple as that.

Would anyone be interested in these? Not sure of a price yet, but probably in the $15-20 ballpark each. Also, any feedback on the design? Could include a 1/8" drill bit as well.

If there is interest, I will post in the Marketplace forum.
  Reply With Quote
Old 15th February 2005, 04:38 PM   #2
acenovelty is offline acenovelty  United States
diyAudio Member
 
acenovelty's Avatar
 
Join Date: Aug 2004
Location: SF Bay Area
Sign me up! Would also work for those of us who own a drill press?

Prosit
__________________
Two people can keep a secret if one of them is dead.
  Reply With Quote
Old 15th February 2005, 04:50 PM   #3
BrianDonegan is offline BrianDonegan  United States
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
TO-3 Drilling Jig
Don't see why not.
  Reply With Quote
Old 15th February 2005, 05:32 PM   #4
Stuart Easson is offline Stuart Easson  United Kingdom
diyAudio Member
 
Stuart Easson's Avatar
 
Join Date: Oct 2002
Location: Santa Cruz, CA
Send a message via MSN to Stuart Easson Send a message via Yahoo to Stuart Easson
Default and me...

I'll take a couple...would you consider getting the same thing done out of steel? or are the bushings steel?

I have used aluminum jigs for other purposes and they work perfectly for a while, but I always seem to slowly enlarge the holes, a steel version, or steel bushings would make this process slower.

Of course I am assuming the cnc process can be applied to any material...

Stuart
  Reply With Quote
Old 15th February 2005, 06:25 PM   #5
BrianDonegan is offline BrianDonegan  United States
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
TO-3 Drilling Jig
The bushings are hardened steel drill bushings, so that shouldn't be a problem. I may actually make the jig out of plastic, depending on costs, but aluminum would be nicer.
  Reply With Quote
Old 15th February 2005, 06:54 PM   #6
Mr Evil is offline Mr Evil  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: Behind you
Could you lop the top off an actual TO3 case and use that instead of milling a piece of aluminium?
__________________
https://mrevil.asvachin.eu/
  Reply With Quote
Old 15th February 2005, 07:30 PM   #7
BrianDonegan is offline BrianDonegan  United States
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
TO-3 Drilling Jig
Would still need to mill it for the drill bushings. Plus, most TO-3 cases have one bog hole in the bottom for the pins rather than two small holes.
  Reply With Quote
Old 15th February 2005, 10:07 PM   #8
Zen Mod is online now Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
TO-3 Drilling Jig
Quote:
Originally posted by Mr Evil
Could you lop the top off an actual TO3 case and use that instead of milling a piece of aluminium?

that solution is proved in praxis
cheap and simple and-what is most important- works.
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 15th February 2005, 10:19 PM   #9
pinkmouse is offline pinkmouse  Europe
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Rotherham, England
TO-3 Drilling Jig
I have some flat aluminium plates used as heatsinks from a Crown Powerbase amp that I use as drilling jigs. Just about the only useful thing that I could get from it!
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 16th February 2005, 08:55 PM   #10
BrianDonegan is offline BrianDonegan  United States
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
TO-3 Drilling Jig
You can use an old TO-3 case, if you have one, but it won't do much for guiding the drill.

My initial idea was a simple jig and a metal punch to be followed by drilling, but I figure there are a bunch of people out there without drill presses, and drilling straight into a piece of aluminum with a hand drill can be tricky.

The drill guide bushing will keep the drill perpendicular to the surface you are drilling. It also will not wear out (hole get bigger) over time. These things should be the last tool you need for it, which is the way I like things.

I'll make a couple and post some pics.
  Reply With Quote

Reply


TO-3 Drilling JigHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
drilling pcbs impsick Chip Amps 70 12th November 2011 11:27 AM
Drilling a PCB KP11520 Everything Else 34 12th September 2007 12:28 AM
Drilling Heatsinks wes-ninja250 Parts 7 29th September 2005 11:22 AM


New To Site? Need Help?

All times are GMT. The time now is 08:46 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki