Useful tools and techniques - Page 4 - diyAudio
Go Back   Home > Forums > Design & Build > Equipment & Tools

Equipment & Tools From test equipment to hand tools

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 14th July 2002, 03:29 AM   #46
PedroPO is offline PedroPO  Portugal
diyAudio Member
 
PedroPO's Avatar
 
Join Date: Jan 2002
Location: Lisbon,Portugal
Send a message via ICQ to PedroPO
have you seen that last Zen amp with the big lettering?

I WANT THOSE FOR MEEEEEE!!!! BAAAD!

I'll try first with a small drill with a router acessory.

If fails I'll leave it to the pro's and go for CNC..
__________________
Pedro Oliveira
  Reply With Quote
Old 14th July 2002, 03:40 AM   #47
PedroPO is offline PedroPO  Portugal
diyAudio Member
 
PedroPO's Avatar
 
Join Date: Jan 2002
Location: Lisbon,Portugal
Send a message via ICQ to PedroPO
Default transfer technique

I found out a techique (just today) to make PCB markings with a laser printer and transparencies. I ran out of transparencies and tried with transparent stickers.

it was awsome! all the lines are firmly attached to the copper, in fact it's very difficult to come off.

Here is the hole thing:

1- make the drawing of the PCB and reverse it (mirror)

2- print it wit laser printer or copier to transparent plastic for laser printer (heat resistent)

3 - position it in the blank PCB

4 - put the iron on it in the oo or ooo
mark and press it against the plate

5 - detach the plastic carefully

6 - sink the pcb in ferric cloride or whatever U use .


I guess it could also work with front pannel lettering.

If my engraving adventure fails I'll try this
__________________
Pedro Oliveira
  Reply With Quote
Old 14th July 2002, 03:41 AM   #48
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Ive seen it and it looks really cool. Why not trying proffesional services who do engraving, jewelery stores maybe.
  Reply With Quote
Old 14th July 2002, 03:44 AM   #49
PedroPO is offline PedroPO  Portugal
diyAudio Member
 
PedroPO's Avatar
 
Join Date: Jan 2002
Location: Lisbon,Portugal
Send a message via ICQ to PedroPO
I dont know why, but have the tendency to try to make everything myself, even if it is more expensive...
__________________
Pedro Oliveira
  Reply With Quote
Old 14th July 2002, 05:16 AM   #50
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
So how come you didn't make your own heat sinks?
Attached Images
File Type: jpg heat.jpg (45.2 KB, 3401 views)
  Reply With Quote
Old 14th July 2002, 08:10 AM   #51
cjunk is offline cjunk  Italy
diyAudio Member
 
Join Date: Oct 2001
Location: Roma, Italy
Default Aluminium panel finishing

How do you finish your aluminium panels?
Are there easy and feasible ways to remove the scratches of the drilling and assembly process?

I would like to preserve the natural color of the aluminium without anodizing it.

Carlo
  Reply With Quote
Old 14th July 2002, 03:06 PM   #52
Coulomb is offline Coulomb  England
diyAudio Member
 
Coulomb's Avatar
 
Join Date: Jul 2002
Location: Ancaster, Ontario
Default Finishing Aluminum

There are several methods you can use, I like to lightly sand blast my heasinks after machining. For flat panels the best method is soap, water and a brillo pad, always push in striaght lines and in one direction only. I have attached a photo showing a project where I used both methods of finishing.

Regards

Anthony

Click the image to open in full size.
  Reply With Quote
Old 14th July 2002, 03:06 PM   #53
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
This is a closeup of a preamp panel I made in early '80s. There was no protection done to aluminum surface of any kind and after extensive use you don't see any wear after all those years. I finished it simply by using fine grade waterproof sandpaper (between 200 to 400, depending on your likening). If you do it wet the surface will become matte, when do it dry it will have a shine. Just use a piece of wood to move your panel along it's edge, so the brushed lines are perfectly straight. After that clean it with hot water. Dry immediately because water might leave spots. That's my memries of making the panel then.

Today I'm using 6" belt sander. I simply sand the panels on it, using WD40 as a lubricant and 150 grid paper. One might use different lubricant but since it's working for me I didn't bother to look for anything else. After that I clean the panel with Varsol and give it a final look with Scotch Brite.

To see more pics of the preamp see: http://www.diyaudio.com/forums/showt...3046#post43046
Attached Images
File Type: jpg pre4.jpg (63.1 KB, 3238 views)
  Reply With Quote
Old 14th July 2002, 04:08 PM   #54
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
It's pretty hard to capture fine texture of aluminum in difficult light but maybe that picture shows it better.
Attached Images
File Type: jpg pre5.jpg (81.3 KB, 3176 views)
  Reply With Quote
Old 14th July 2002, 04:33 PM   #55
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Anthony,
Using soap sounds interesting, I never tried it before. What's brillo pad?
  Reply With Quote
Old 14th July 2002, 05:27 PM   #56
diyAudio Member
 
Join Date: Aug 2001
Brillo pads are scouring pads, something that resembles Scotch-Brite.
  Reply With Quote
Old 14th July 2002, 05:42 PM   #57
Coulomb is offline Coulomb  England
diyAudio Member
 
Coulomb's Avatar
 
Join Date: Jul 2002
Location: Ancaster, Ontario
Default Re: Brillo

Hello HPotter, cp642 is correct.. though I tend to keep a few different types at my disposal to work with. First the Soap acts as a lubricant to control the abrasive action and smooth the stroking process. I use a copper pot scrubber for rough finish then follow up with the presoaped little steel wool pads for polishing. The plastic types are useless of course. I tried sand paper but never got the sheen I wanted and it seemed messier. I do all the polishing under luke warm running water and have not had the experience of a dull finish from wet working.

Regards

Anthony
  Reply With Quote
Old 14th July 2002, 06:30 PM   #58
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
You get matte finish when using high grid sand paper (300 and more) and water (no soap, because you want to find the most abrassive stroke).
Attached Images
File Type: jpg mat.jpg (33.4 KB, 3074 views)
  Reply With Quote
Old 14th July 2002, 06:37 PM   #59
Coulomb is offline Coulomb  England
diyAudio Member
 
Coulomb's Avatar
 
Join Date: Jul 2002
Location: Ancaster, Ontario
Default Re: Matte Finish

Humm.. Sounds cool, maybe I will give it another try.
  Reply With Quote
Old 14th July 2002, 09:39 PM   #60
PedroPO is offline PedroPO  Portugal
diyAudio Member
 
PedroPO's Avatar
 
Join Date: Jan 2002
Location: Lisbon,Portugal
Send a message via ICQ to PedroPO
In my panel I used 320 sandpaper without water or soap.

I didn't use a ruller so the lines were a bit on the curve side, but I think is ok for the first job.

after I lackered it with semi gloss and finished with car polish

here is a pic
Attached Images
File Type: jpg led1.jpg (69.9 KB, 3184 views)
__________________
Pedro Oliveira
  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
Crossover construction techniques wiredmonkey Multi-Way 13 25th April 2009 03:27 AM
Woodworking techniques johngalt47 Multi-Way 33 11th March 2009 07:07 AM
Transistor biasing techniques keantoken Solid State 22 21st September 2006 05:13 PM
Techniques SL-230 rewire justn Analogue Source 5 1st October 2005 06:36 AM


New To Site? Need Help?

All times are GMT. The time now is 09:55 AM.


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