Etching help - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 16th September 2011, 10:16 PM   #1
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Default Etching help

I really need some solid info on this dark art. I have not been able to get consistent results. Magazine paper had yielded the best results, but still can't get it right. Any specific info would be helpful. I have seen so many successful examples using magazine paper and an iron but can't get it to work.
  Reply With Quote
Old 16th September 2011, 10:40 PM   #2
diyAudio Member
 
digits's Avatar
 
Join Date: Apr 2011
I would suggest you get the proper blue press and peel rather than trying glossy sheets....
  Reply With Quote
Old 16th September 2011, 10:51 PM   #3
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
What brand of printer are you using?

What is the problem your having exactly?

Press and peel is a waste of money IMO. I can get perfect results with HP glossy presentation paper.
  Reply With Quote
Old 16th September 2011, 11:18 PM   #4
eyoung is offline eyoung  United States
diyAudio Member
 
eyoung's Avatar
 
Join Date: Aug 2007
Location: Sunny SC,USA 15 min south of Charlotte NC
I have an interest in this as I have itch that needs scratching.

Regards, El
__________________
"Lead me not into temptation...I can find it myself."
  Reply With Quote
Old 17th September 2011, 12:10 AM   #5
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
I am using the Xerox laser printer at Office Max and putting it on high qaulity magazine paper like Architectural Digest. Some work great, some do poorly. I didn't know if there was an ideal heat setting on the iron. I know a lot of people use lamination machines, but i don't want to buy one. I know it can be done because guys are doing extremely complex layouts with no speckling or unevenness or partial traces.
  Reply With Quote
Old 17th September 2011, 12:25 AM   #6
diyAudio Member
 
Join Date: Nov 2010
Location: Marblehead Ma
so you're doing your laser printing at the store ? cool , i've been on the hedge about buying a printer just for pcb printing , but didn't think about just going to my local staples
  Reply With Quote
Old 17th September 2011, 06:37 AM   #7
diyAudio Member
 
digits's Avatar
 
Join Date: Apr 2011
Lol, I have my wife print mine at work. The press and peel is not that expensive if you use it right. First print a dummy on a blank sheet to find its position, then cut out only a large enough piece to cover the printed area, glue it on, and put it back into the printer.
  Reply With Quote
Old 17th September 2011, 07:16 AM   #8
diyAudio Member
 
Join Date: Mar 2011
Default A better resist than PNP exists

Buzz--

You might consider stepping up to a serious quality etching photomask. The iron-on PNP blue is very touchy. It requires constant heat, but not too much. You have to adjust the iron to the size of the board, keep it moving, etc. Even with a laminator, it may not come out right.

I have done very high-resolution etching of logos for jewelry for years using Puretch Photopolymer for PCBs. It is a flexible sheet that is easy to apply, sticks well with no heat (just water and suction), and exposes evenly with a nail-drying light or similar. You work with it under a bug (yellow or darkroom) light, and develop it in soda ash. If you try it, you will abandon PNP forever.

The one caveat on all resists is the metallic (in this case, copper) surface must be absolutely clean. You need to scrub with Barkeeper's Friend and/or pumice, then wipe with alcohol. If you pick up tarnish with a paper towel, it's not clean. The resist needs to be applied within hours of cleaning the board.
  Reply With Quote
Old 17th September 2011, 07:35 AM   #9
jazz is offline jazz  Netherlands
diyAudio Member
 
Join Date: Dec 2001
Location: leiden, physically that is...
Hi,

I use photosensitive pcb's and transparent presentation sheets. Works nice and reliably. Takes a bit of practice with the printer to align the sheet for the second and if needed third print though.

regards,
Joris
__________________
oh, what a beautifull day
I wanna go out and play!
  Reply With Quote
Old 17th September 2011, 08:40 AM   #10
NYCOne is offline NYCOne  United States
diyAudio Member
 
Join Date: Jul 2010
Blog Entries: 1
Check out my blog on the subject:

http://www.diyaudio.com/forums/blogs/nycone/

I use Staples item 633215. It flawless for single sided PCBs and very good for two sided.
  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
etching gainclone pcb pra3718 Chip Amps 35 17th October 2012 11:22 AM
Etching PCB:s Loial Parts 105 12th April 2012 03:22 AM
Etching or silkscreening chassis? audio_moksha Tubes / Valves 3 15th February 2008 05:32 AM
How to do the etching Karakacha Parts 9 28th November 2006 07:18 AM
254nm UV for etching? Stocker Everything Else 6 10th December 2005 02:11 AM


New To Site? Need Help?

All times are GMT. The time now is 11:58 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