Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-22 by Leon Heller
... From: To: Sent: Tuesday, June 22, 2004 2:52 AM Subject: Re: [Homebrew_PCBs] Re: First PCB - used
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Re: [Homebrew_PCBs] Re: Marker choices for etch resist
2004-06-22 by JanRwl@AOL.COM
In a message dated 6/21/2004 10:00:12 PM Central Standard Time, phil1960us@yahoo.com writes: I did buy one of those and am pretty sure its just an un marked
Re: [Homebrew_PCBs] Marker choices for etch resist
2004-06-22 by JanRwl@AOL.COM
In a message dated 6/21/2004 9:21:51 PM Central Standard Time, ddave65@chartermi.net writes: Why don t you buy the Etch resist ink pens from Digikey? I guess I
Re: First PCB - used Sharpie...
2004-06-22 by Phil
On FR4 I get a very small amount of staining. It is a slight bluish mottling which I can certainly live with. Its barely visible. I dont think water works
Re: Marker choices for etch resist
2004-06-22 by Phil
I did buy one of those and am pretty sure its just an un marked sharpie. it worked about the same as a sharpie. even the mold marks on the casing were the
Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-22 by JanRwl@AOL.COM
In a message dated 6/21/2004 8:50:55 PM Central Standard Time, leon_heller@hotmail.com writes: Water? It s like diluting alcohol. Hmmm... I will have to TRY
Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-22 by Leon Heller
Leon Heller, G1HSM http://www.geocities.com/leon_heller ... From: To: Sent: Tuesday, June 22, 2004 2:20 AM
Re: [Homebrew_PCBs] Marker choices for etch resist
2004-06-22 by dave dankert
Why don t you buy the Etch resist ink pens from Digikey? They have two that have 1/32 and 1/64 lines. Prices are less than $5.00 each. David Dankert ...
Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-22 by JanRwl@AOL.COM
In a message dated 6/21/2004 3:16:24 PM Central Standard Time, stefan_trethan@gmx.at writes: are you using undiluted acetone? With WHAT would one dilute
Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-21 by Stefan Trethan
On Mon, 21 Jun 2004 14:00:26 -0700, Bob & Linda Gardner ... good to hear. not sure what could solve the problem - scraping and then finishing off the rest with
Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-21 by Bob & Linda Gardner
It s not just you. I have problems with acetone smearing the resist into the surface of the board as well. Haven t found a solution, although it doesn t seem
Re: [Homebrew_PCBs] Re: First PCB - used Sharpie...
2004-06-21 by Stefan Trethan
... And it is not rubbing into the epoxy? why is this happening only to me? are you using undiluted acetone? I m not surprised it is attacking the boards, i
Re: First PCB - used Sharpie...
2004-06-21 by Phil
nail polish works very well except it takes a little time to dry (hot air gun works great on it). works well in ammonium perchlorate. acetone is an awesome
Re: [Homebrew_PCBs] aceton (was First PCB - used Sharpie...)
2004-06-21 by Stefan Trethan
... I have problems using acetone. If i use it to remove the toner from toner transfer it solves the epoxy pcb surface and smears the toner into it. Laquer
Re: [Homebrew_PCBs] Marker choices for etch resist
2004-06-21 by Stefan Trethan
On Mon, 21 Jun 2004 07:55:53 -0700, RandyL ... Real laquers generally tend to work, especially if you can apply a thick layer. I
Re: [Homebrew_PCBs] Marker choices for etch resist
2004-06-21 by Stefan Trethan
... I use Steadtler, they seem the best but with a too acidic etchant they fail all the same. Buy the red one, they are the best. You can buy them in many
Re: [Homebrew_PCBs] Marker choices for etch resist
2004-06-21 by RandyL
anyone considered a paint marker, like they use at auto wrecking yards? RandyL ... From: ransom peek To: Homebrew_PCBs@yahoogroups.com Sent: Monday, June 21,
Marker choices for etch resist
2004-06-21 by ransom peek
Lots of detailed responses to my question about poor etch resist of sharpie pen - thak you all! Seems others find the Sharpie unacceptable. One response
Re: [Homebrew_PCBs] First PCB - used Sharpie...
2004-06-21 by Gunnar Lestander SM4VLM
I have succesfully used paint. Together with a good quality artwork brush it works fine. Maybe nailpolish work ? Small bottles easy to steal at home ,brush
Re: [Homebrew_PCBs] First PCB - used Sharpie, but copper lines are pitted...
2004-06-21 by Stefan Trethan
On Sun, 20 Jun 2004 22:21:04 -0400, mickeym ... go to a office store that provides sample pens to try, with a scrap of pcb in your
Re: [Homebrew_PCBs] First PCB - used Sharpie, but copper lines are pitted...
2004-06-21 by Leon Heller
... From: ransom peek To: Sent: Monday, June 21, 2004 1:53 AM Subject: [Homebrew_PCBs] First PCB -
Re: [Homebrew_PCBs] First PCB - used Sharpie, but copper lines are pitted...
2004-06-21 by JanRwl@AOL.COM
In a message dated 6/20/2004 7:59:12 PM Central Standard Time, ransom.peek@comcast.net writes: First time tried to make pcb, used Sharpie Ultra Fine marker and
Re: [Homebrew_PCBs] Reflow Oven (was Re: 4 Layer)
2004-06-21 by Jeremy Taylor
temp probe on my meter. The oven gauge is not accurate at all JT ... From: Phil To: Homebrew_PCBs@yahoogroups.com Sent: Sunday, June 20, 2004 11:44 PM Subject:
Reflow Oven (was Re: 4 Layer)
2004-06-21 by Phil
... wrote: ... what are you using to measure temp - an oven gauge?
Re: First PCB - used Sharpie, but copper lines are pitted...
2004-06-21 by Phil
I ve found that it works better if you dab the sharpie so that the ink kind of puddles up. Leaves a thicker layer of ink. ... ferric ... Still, ... doesn t
Re: [Homebrew_PCBs] First PCB - used Sharpie, but copper lines are pitted...
2004-06-21 by mickeym
A sharpie is okay for small areas, but hard to get a good fill on larger things. I use one to fix bad spots on toner tranfers with fair results. Did someone
First PCB - used Sharpie, but copper lines are pitted...
2004-06-21 by ransom peek
First time tried to make pcb, used Sharpie Ultra Fine marker and ferric chloride from Radio Shack. After 10 minutes in solution, with agitation, market lines
Re: [Homebrew_PCBs] Reflow Oven (was Re: 4 Layer)
2004-06-20 by Jeremy Taylor
I did a bga sot-70ish type 6 pin, After several failed attempts, I left the etch resist on, which acted like a very thin soldermask and it did indeed work,
Reflow Oven (was Re: 4 Layer)
2004-06-20 by javaguy11111
... $70 ... air, ... some ... but ... place ... Since ... the ... The process with my oven is to start cold. I put the board in, close the door and turn the
Reflow Oven (was Re: 4 Layer)
2004-06-20 by Phil
I m in the process of looking for a toaster oven to turn into a reflow oven. I ve been looking in second-hand stores and most of these are pretty junky. I
Re: [Homebrew_PCBs] Re: 4 Layer
2004-06-20 by Markus Zingg
... I do have one of them here to play with, but I heard that the heat disapears way too fast if you have to open the door to feed it. Since I intend to solder
Re: [Homebrew_PCBs] Re: 4 Layer
2004-06-20 by Stefan Trethan
... the ovens i tried took awfully long to heat the board. please do a little experiment some day and glue two pieces of pcb together with epoxy, press them in
Re: 4 Layer
2004-06-20 by javaguy11111
... (and ... very ... iron. ... an ... Try ... One of these days I will do multilayer. Biggest problem is having a place to setup a PTH station. It will be a
Re: [Homebrew_PCBs] Re: 4 Layer
2004-06-20 by Markus Zingg
... Due to the lack of a reflow oven, I solder so far exclusively with an iron, hence you re probably right that it could happen in an oven. Try it out and see
Re: 4 Layer
2004-06-20 by javaguy11111
... made ... drilling, ... When you solder, do you reflow solder in an oven or only use an iron. My concern is that the board could delaminate in an oven.
Re: [Homebrew_PCBs] 4 Layer
2004-06-20 by Markus Zingg
... It can be done, and to be honest I not even find it especially difficult. ... I tried different 5 min epoxys. All I tried worked well, I don t think it s
Re: [Homebrew_PCBs] 4 Layer
2004-06-20 by Jeremy Taylor
Thanks for the reply. I have PTH, Tin/lead electro, and cnc. I was hoping it could be done, What particular brand of epoxy did you use, and did you need a
Re: [Homebrew_PCBs] 4 Layer
2004-06-20 by Markus Zingg
... I sucessfully did this with 5 minute epoxy and a homebrew little simple press consisting of two vices. The most important part though is that you
4 Layer
2004-06-19 by Jeremy Taylor
What is needed to make 4 layer boards, a press (hot or not) and some sort of glue? JT
Re: [Homebrew_PCBs] easy way to soldermask ?
2004-06-19 by Stefan Trethan
On Sat, 19 Jun 2004 23:24:56 +0200, Stefan Trethan ... oh, you said without lamination, i somehow read without screen printing.. well
Re: [Homebrew_PCBs] easy way to soldermask ?
2004-06-19 by Stefan Trethan
... There is photosenstive liquid and film soldermask. you apply it one way or the other and then expose and develop it. ST
easy way to soldermask ?
2004-06-19 by metebalci
Hi, Is there anyway to make soldermask without lamination equipment ? If so, what is it ? Thanks in advance. Mete Istanbul/TURKEY
Re: [Homebrew_PCBs] Re: Spray etcher
2004-06-18 by Adam Seychell
... Yes, it I know from experience it does require a fair bit of work to make a spray etcher. Obtaining a pump and is not a problem, nor is the cost. Most of
Re: [Homebrew_PCBs] Re: Spray etcher
2004-06-18 by JanRwl@AOL.COM
In a message dated 6/17/2004 1:45:10 AM Central Standard Time, a_seychell@yahoo.com.au writes:
Re: [Homebrew_PCBs] Re: Spray etcher
2004-06-18 by JanRwl@AOL.COM
In a message dated 6/17/2004 1:21:42 AM Central Standard Time, stefan_trethan@gmx.at writes: what i would fear with a pump setup is the fixed position of the
Re: How does everyone hold down SMT parts
2004-06-17 by mava3941
Gentelmen, Thank you all.. You got my wheels turnning. I need to go play with PCBs,Solder,SMT parts & Flux... Martin
Re: My DIY CNC PCB Drill
2004-06-17 by scott5342000
... pads? I tried measuring it once using a perfboard. Looked like it must have been within a mil or two over 8 inches in the X plane, the Y plane might have
Re: [Homebrew_PCBs] My DIY CNC PCB Drill
2004-06-17 by Leon Heller
... From: scott5342000 To: Sent: Thursday, June 17, 2004 5:44 PM Subject: [Homebrew_PCBs] My DIY CNC
My DIY CNC PCB Drill
2004-06-17 by scott5342000
For your amusement - http://home.comcast.net/~scottxs/
Re: [Homebrew_PCBs] Re: Spray etcher
2004-06-17 by Stefan Trethan
... That s a nice piece of work... looking forward to hearing of the results. st