Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 27th November 2005, 02:17 PM   #11
cadbike is offline cadbike  United States
diyAudio Member
 
Join Date: Oct 2005
For the power supply connector I used a cb microphone connector that I ordered from parts express. I have used xlr connectors as well. Either type works great. I did do all of the sanding by hand and then polished it by hand as well using mothers billet polish because I had some sitting around. I think the polish would have been better if I had used a machine but everyone that has seen the amp in person has been very complimentary of the finish. I would trust mick_f's comments on the sanding though. I can tell you that if you polish out 1500 grit you will still have lines from sanding in it.

As far as the aluminum goes. I thought the shipping was very reasonable. I think it was maybe 40 dollars for shipping. Plus you get a discount if you order over a hundred dollars worth from onlinemetals. Very reasonable. I couldn't find anywhere else that was as cheap.
  Reply With Quote
Old 27th November 2005, 02:36 PM   #12
diyAudio Member
 
Join Date: Jan 2004
Location: Terengganu, Malaysia
Send a message via AIM to safetyman Send a message via MSN to safetyman Send a message via Yahoo to safetyman
Thanks Mick_F and cadbike for the advise. I'll guess I'll have to go round and try to get the finer grit sandpaper. Darn, this country just ain't DIY friendly. It's so damn hard to get parts or to find someone to do it.

BTW, cadbike, you sure those are 0.25" aluminum? They look rather thick. I thought they were more like 0.5".
__________________
Shehzad
Aleph 3 - Diehard fan
  Reply With Quote
Old 27th November 2005, 02:49 PM   #13
cadbike is offline cadbike  United States
diyAudio Member
 
Join Date: Oct 2005
Safetyman,

It is only .25 inch aluminum. The case for the amp is only 2 inches high by 6" wide. I was going for the bulky look, but 1/4 al is a lot easier to work with.
  Reply With Quote
Old 27th November 2005, 06:18 PM   #14
opt-e is offline opt-e  Canada
diyAudio Member
 
Join Date: Oct 2005
Thanks for the info guys.

Cadbike, is it possible to use self-tapping screws with aluminum or do I need to get a tapping tool? Also, did you get the the polycarb at onlinemetals.com as well?
  Reply With Quote
Old 28th November 2005, 03:06 AM   #15
cadbike is offline cadbike  United States
diyAudio Member
 
Join Date: Oct 2005
I've never tried self tapping screws, but I highly doubt it would work. I'm using 8-32 thread machine screws to hold the front and back on, 6-32 thread machine screws for the top and bottom and some 1/2 inch stainless wood screws to hold the sides on. I'm countersinking all of them. I'm tapping all of the holes using a cordless drill with the clutch set very low. Saves a ton of time.

Michael
  Reply With Quote
Old 28th November 2005, 03:08 AM   #16
cadbike is offline cadbike  United States
diyAudio Member
 
Join Date: Oct 2005
Oh, and i ordered the polycarbonate pre cut from interstateplastics.com
  Reply With Quote
Old 28th November 2005, 05:29 AM   #17
diyAudio Member
 
Join Date: Jan 2004
Location: Terengganu, Malaysia
Send a message via AIM to safetyman Send a message via MSN to safetyman Send a message via Yahoo to safetyman
Quote:
Originally posted by cadbike
Safetyman,

It is only .25 inch aluminum. The case for the amp is only 2 inches high by 6" wide. I was going for the bulky look, but 1/4 al is a lot easier to work with.
Michael,

Thanks for all the help, I feel more confident to take on the task now. I guessed I was fooled by the size of the pics as I thought your amp was larger than that. It really looks nice and professional. I hope I can come up with something nice too, as creativity and handiwork just isn't my forte. It's a first attempt with minimum tools and I will probably be happy with whatever that comes out functional and decent looking.
__________________
Shehzad
Aleph 3 - Diehard fan
  Reply With Quote
Old 2nd December 2005, 06:05 PM   #18
diyAudio Member
 
Join Date: Jan 2004
Location: Terengganu, Malaysia
Send a message via AIM to safetyman Send a message via MSN to safetyman Send a message via Yahoo to safetyman
Quote:
Originally posted by cadbike
I I'm countersinking all of them. I'm tapping all of the holes using a cordless drill with the clutch set very low. Saves a ton of time.

Michael
Michael, can you please guide me on the tools needed and the procedure to drill the holes for countersinking?

Thanks.
__________________
Shehzad
Aleph 3 - Diehard fan
  Reply With Quote
Old 2nd December 2005, 06:10 PM   #19
cadbike is offline cadbike  United States
diyAudio Member
 
Join Date: Oct 2005
Safetyman,

I used a drill press to drill all the holes for the case. I just drilled a hole all the way through that was slightly larger than my bolt shaft. Then I used a bit slightly larger than the bold head to do my countersink. This has the advantage of making the holes self centering since the bit was tapered. But, your holes will need to be very precise. I've seen other people use some pilot point bits made by Dewalt that will give you a flat bottomed hole. I think you can get them at home depot here. if you need anymore advice, let me know. Oh, and on your holes in the side that you will be tapping, it helps if you make them quite a bit deeper than your bolt will need.
  Reply With Quote
Old 3rd December 2005, 12:48 AM   #20
karma is offline karma  Canada
diyAudio Member
 
karma's Avatar
 
Join Date: Feb 2003
Location: hamilton,ontario
nice case cadbike
  Reply With Quote

Reply


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Guitar Pre Revisions? cheeseburgerjoe Instruments and Amps 13 12th August 2009 08:23 PM
RS180 version of the Thor cabinet revisions? crazyjpeters Multi-Way 0 13th July 2009 11:13 PM
My recent power amp... JojoD818 Solid State 54 6th July 2004 12:01 PM
what is the music for nokia's recent add TomJ Music 0 10th June 2003 08:28 PM


New To Site? Need Help?

All times are GMT. The time now is 06:05 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2