Re: applying dry film photoresist
2008-05-30 by electrophilip
Thanks Adam, great information. I haven t been here for a while and i have missed out on where to buy the Photo resist if it was mentioned in other threads.
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Re: [Homebrew_PCBs] Printer Preferences
2008-05-30 by Myc Holmes
Hi CJ, I ve been using a cheap Samsung ML-2010 ($60) for a couple of years now. It works well with Staples photo paper. There are newer models now. If you
Re: Printer Preferences
2008-05-30 by drpain1313
... I ve got a $99 HP P1006 (from Staples) that I m quite happy with. Nice dense prints. I ve also got a Brother HL-2140 that I m not so impressed with. Lots
Printer Preferences
2008-05-30 by billshat44
My Okidata B4200 laster priner died 3 or 4 months ago and I want to replace it. I didn t use it for printing schematics so it was a natural death 8 ). I was
Re: applying dry film photoresist
2008-05-29 by art_lammoglia
Thats a great addition to your site Adam. Thanks. Can double sided boards be laminated this way? How susceptible to damage is the first side resist when
Re: [Homebrew_PCBs] Re: applying dry film photoresist
2008-05-29 by Markus Zingg
Adam, It might be a question related to what kind of dryfilm resist one is haveing. I so far only had the ocasion to try two different products. One was from a
Re: [Homebrew_PCBs] Re: applying dry film photoresist
2008-05-28 by Adam Seychell
... thanks for the photos. I see you don t have problem with resist sticking to the copper at cold regions of the board. ... I once tried your method and found
Re: [Homebrew_PCBs] Re: pcb foil to DXF file conversion.
2008-05-28 by Mike Schoenborn
... The newer versions of the open source Inkscape (www.inkscape.org) have a tracing capability that might provide a workable approach. The program s
Re: [Homebrew_PCBs] Re: filtering / thp chemical
2008-05-28 by Markus Zingg
Chris, I must have missed the mail, please resend. Markus
Re: filtering / thp chemical
2008-05-28 by scx31114
... nugget ... This is correct, but i want know it for the reason i have emailed your privatly. ... thread ... thread) ... the ... attach ... divideable. ...
Re: [Homebrew_PCBs] filtering / thp chemical
2008-05-28 by Markus Zingg
Chris, For a small station, using massive anodes is much easier than the nugget aproach. I use copper anodes which are 100 x 80 x 8 mm in size. I made a thread
filtering / thp chemical
2008-05-28 by scx31114
Hello, the smallparts source is great, 6.3$ the part. For me, the problem getting to a pcb frabicant is a litt le problem for distances. I think, that i buy a
Re: [Homebrew_PCBs] Re: applying dry film photoresist
2008-05-28 by Markus Zingg
I created a little photoalbum showeing the process. I don t know if the link below will work (had some troubles in the past with it here) and as always, the
Re: pcb foil to DXF file conversion.
2008-05-28 by warrenbrayshaw
... A quick search over at CNC.com brought up these two possible solutions from the forums. A longer read there shows others. At Science Specialists they have
Re: direct screen printing
2008-05-28 by pork_u_pine2000
... stainless ... 12 x 12 ! ... they re ... it is easy ... up buying ... A similarly useful but dangerous vendor is Small Parts, Inc.
Re: [Homebrew_PCBs] Re: pcb foil to DXF file conversion.
2008-05-28 by Hugh Prescott
Check out KellyCAM and Mach 3 at ArtSoft. I know that Mach 3 will load DXF files and cut them but only certain linetypes. Hugh
Re: pcb foil to DXF file conversion.
2008-05-28 by pork_u_pine2000
... A while ago I looked for a good bitmap to vector conversion program but did not find anything that worked for me in the open source world. My search was
Re: applying dry film photoresist
2008-05-28 by pork_u_pine2000
I would really like to see how you do it, too. Like many processes (especially relating to photochemical systems) it seems some methods work better for some
Re: applying dry film photoresist
2008-05-28 by pork_u_pine2000
... Thanks for posting this. It sheds new light on a mystery that was starting to bother me. -- Dave
Re: Via Through plating
2008-05-27 by Andrew
... Seeing as the original poster signed off VK4xxx it means his local board house is in Brendale (and local has a different meaning out here. Brendale
Re: [Homebrew_PCBs] UV Exposure Box
2008-05-27 by Harvey White
... A little. It looks like it s trying to minimize off axis UV, so the UV is mostly perpendicular to the board. That and perhaps a little diffusion, I have
Re: [Homebrew_PCBs] UV Exposure Box
2008-05-27 by Markus Zingg
Tom, You can find pictures of the LED based exposure unit I built in the files section of the group. Honestly, these days I really would no longer bother
pcb foil to DXF file conversion.
2008-05-27 by gus_452000
Hi I have a nice simple homebrew PCB mill and it works very well, the problem is at present I scan the artwork onto my PC and redarw this with a CAD package
Re: [Homebrew_PCBs] UV Exposure Box
2008-05-27 by Leon
... From: Tom Van den Bon To: Sent: Tuesday, May 27, 2008 11:37 AM Subject: [Homebrew_PCBs] UV Exposure
Re: [Homebrew_PCBs] UV Exposure Box
2008-05-27 by Ross McKenzie
Tom, The author explains the grid by stating in his article ... a light source for exposing the photoresist: it must be collimated enough (i.e. the light rays
UV Exposure Box
2008-05-27 by Tom Van den Bon
Hi There, I ve been creating my own pcb s for a while now using photosensitive boards and a uv light. My current uv light consists of a old scanner with three
Re: [Homebrew_PCBs] Re: Via Through plating
2008-05-27 by Markus Zingg
From their description, the chemistry looks like it s 100% what I use here. However, the price for the chemistry seems a bit steep. It depends though on how
Re: [Homebrew_PCBs] Re: Via Through plating
2008-05-27 by Leon
... From: Markus Zingg To: Sent: Tuesday, May 27, 2008 7:53 AM Subject: Re: [Homebrew_PCBs] Re:
Re: [Homebrew_PCBs] Via Through plating
2008-05-27 by Adam Seychell
... You have to realise that the copper electroplating step is only one of many stages to fabricate a PTH PCB. Each of the stages, dry film laminations, making
Re: [Homebrew_PCBs] Re: Via Through plating
2008-05-27 by Markus Zingg
Apart from Adam, how seems to understand A LOT about chemistry, I m not aware of anybody who has developped his/her own chemistry which he could SUCESSFULLY
Re: Via Through plating
2008-05-27 by javaguy11111
I would like to try doing through hole plating, but I am not at a point where I really need it. However, if I were to get something right now I would probably
Re: [Homebrew_PCBs] Via Through plating
2008-05-27 by lothar baier
the way to do it is to drill the holes first, you will then have to etch the sides of the hole (dont remember excactly what was used for it) then you put the
Via Through plating
2008-05-26 by frankwinter1
This subject seems to come up every now and then. I wonder if anybody has come up with information about how to metalize inside the via holes? I am not a
Re: [Homebrew_PCBs] direct screen printing
2008-05-26 by Mike Schoenborn
... The McMaster-Carr company (www.mcmaster.com) carries very fine mesh materials. Their part number 92715T32, for instance, is a stainless steel screen with
Re: [Homebrew_PCBs] applying dry film photoresist
2008-05-26 by Adam Seychell
... thanks. As Markus said, for PTH PCBs the holes must be pre-drilled. I was always too scared to etch dimples and rely on the carbide drill bit wondering
Re: [Homebrew_PCBs] applying dry film photoresist
2008-05-26 by Adam Seychell
Yes that s exactly true Markus. Although this particular PCB was single sided and was pre drilled only because of convention. I only tried hot roll lamination
direct screen printing
2008-05-26 by scx31114
Hello, i have made a tests with Bungard solder Mask and direct white printing over it with UV hardered INK before solder mask hardering. It works. I have tried
screen printing
2008-05-26 by scx31114
Hello, i have made a tests with Bungard solder Mask and direct white printing over it with UV hardered INK before solder mask hardering. It works. I have tried
Re: [Homebrew_PCBs] applying dry film photoresist
2008-05-26 by Markus Zingg
I could be wrong, but the way his board looks, and from what I know from Adams past postings to this group, it seems to be through plated. There you obviousely
Re: [Homebrew_PCBs] applying dry film photoresist
2008-05-26 by DJ Delorie
Thanks for the tutorial! I noticed your board is pre-drilled... do you always drill first? Any tips there? I usually used the etched dimple as a drill
Re: [Homebrew_PCBs] applying dry film photoresist
2008-05-26 by Markus Zingg
Adam, Thanks for shareing this with us. Interesting method. If I find the time I may also shoot sompe pictures of how I do it - not that you would not know,
applying dry film photoresist
2008-05-26 by Adam Seychell
To those people who were interested in how I were applying dry film photoresist using wet lamination , please visit:
Re: What's the best photoresist?
2008-05-26 by garydeal
... If it s of any help, in my limited experience, when I have small bubbles I use a sharp point to poke a *tiny* hole through the cover sheet and resist, then
Re: [Homebrew_PCBs] Re: What's the best photoresist?
2008-05-25 by Markus Zingg
Dave, Assuming you really tried it for a while, you may want to change the laminator, or try to loosen the screws (reducing the pressure). I never let the foil
Re: What's the best photoresist?
2008-05-25 by pork_u_pine2000
... I am very eager to see how this is done too! I purchased a large roll of this material a while ago but have become very frustrated attempting to apply it
Re: What's the best photoresist?
2008-05-24 by javaguy11111
Matthew, I have sent you a private email so I do not clutter up the group with shipping details. If you do not get it then just send an email to damonb at
Re: [Homebrew_PCBs] What's the best photoresist?
2008-05-24 by Adam Seychell
I first heard about wet lamination in one of Karl Dietz s articles in CircuiTree.
Re: [Homebrew_PCBs] What's the best photoresist?
2008-05-24 by Markus Zingg
Adam, I m intersted to see your way of applying the resist. :-) I agree that applying it is something you need to get the hang of it. I meanwhile simply use a
Re: [Homebrew_PCBs] What's the best photoresist?
2008-05-24 by Adam Seychell
I use dry film resist all the time too. Over the years I ve pretty much perfected applying the film onto PCB material for prototyping. I used wet lamination
Re: [Homebrew_PCBs] Re: What's the best photoresist?
2008-05-24 by Matthew Smith
Quoth javaguy11111 at 2008-05-23 22:37... ... What do those prices actually mean - are they delivered prices or is there a surcharge for non-US orders? Do you