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Messages 19338 - 19367 of 23852   Oldest  |  < Older  |  Newer >  |  Newest
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19338
Hi everybody, Looking to solve this problem, I found in my garage on a shelf an old bottle of synthetic thinner for paint, toluene based (don't know if it can...
Michel Baguet
bagmik
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Nov 1, 2007
9:13 am
19339
Yes, and acetone is cheap. But i am cheaper and that would use way too much of it for my liking. I think it depends a lot on the toner how well it flakes off...
Stefan Trethan
stefan_trethan
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Nov 1, 2007
9:40 am
19340
I find that just plain 600 grit aluminum oxide sandpaper takes the toner off just fine. Then a quick rub with a nylon abrasive pad takes out the scratches if...
RICHARD HEILIGER
rdheiliger
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Nov 1, 2007
2:23 pm
19341
Ok, so here it is. I am a complete first timer, and have spent the past few weeks amassing all the items from everyones tips, websites, and forums. So today...
sml
sml_caerus
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Nov 2, 2007
1:31 am
19342
Guys, I'm impressed with this link. I thought you guys were all talking ancient dip 0.1" spacing stuff wiht the TT technique. That board is impressive at that...
Lee Studley
studleylee
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Nov 2, 2007
7:00 pm
19343
... 0.1" is HUGE! ;-) So yeah, go try it. 8 mil is easy with TT. Here's more inspiration: http://www.delorie.com/pcb/smd-challenge/old/proto-boards.html The...
DJ Delorie
djdelorie
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Nov 2, 2007
8:22 pm
19344
Hello. Before, I tried TT but for no avail. I read from the sites that they used photo paper so I experimented on it. I even used four different photo paper...
jeanzlr06
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Nov 3, 2007
8:28 pm
19345
I bought an epson R300 printer, and a Mispro yellow spongeless cart. Now I have tried to make PCBs with it but no success. I've tried to prepare the pcb with...
asiido
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Nov 3, 2007
8:29 pm
19346
If you can try to tell the printer to print in grayscale. But the image may not be dark enough. Bob Macklin Seattle, Wa....
Bob Macklin
k5myj
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Nov 3, 2007
9:55 pm
19347
... As there are many steps in the process it would be helpful if you could eliminate the ones that are OK. You may have to experiment Prior to baking the...
warrenbrayshaw
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Nov 4, 2007
12:07 am
19348
Could you send some images before curing and after curing to figure out the problem? Keep in mind that If you use single color it will be low resolution. You...
Volkan Sahin
v_sahin
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Nov 4, 2007
5:11 am
19349
The problem was that there wasn't enough ink on the PCB. Since my printer has 6 different color cartridges and I only had a yellow one with pigmented ink, I...
asiido
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Nov 4, 2007
10:16 am
19350
I was wondering if it's best to use cold ferric solution, or warmed. I have one of those tanks that sprays the cold ferric chloride. I would guess that the...
Lee Studley
studleylee
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Nov 4, 2007
4:15 pm
19351
The etch rate of a warm solution is way higher than cold. regarding the preserving of the ink not sure, if the ink is dissolving or being etched by the...
Kim Vellore
kimvellore
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Nov 4, 2007
5:52 pm
19352
This seems like a lot of trouble and expense to avoid using TT paper or photo masking. Is it worth it? Bob Macklin Seattle, Wa....
Bob Macklin
k5myj
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Nov 4, 2007
9:06 pm
19353
For me inkjet printing is reliable and easy. I am no longer using any other method any more. It is clear that you can not get the same performance from the...
Volkan Sahin
v_sahin
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Nov 4, 2007
9:25 pm
19354
I seem to be seeing a trend here, that regardless of the techniques used, with care one can get to 6/6 rules. How do we get past that? It must be possible in...
DJ Delorie
djdelorie
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Nov 5, 2007
2:34 am
19355
Do you know what a GERBER machine is? It is used to make a photo mask. The GERBER is a laser photo plotter. I worked on the original at Dickson Eletronics in ...
Bob Macklin
k5myj
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Nov 5, 2007
3:05 am
19356
Answering from the perspective of "Home Brew PCBs"... ... Yes, I know what a gerber file is, and what a commercial photoplotter is. I wrote a gerber viewer...
DJ Delorie
djdelorie
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Nov 5, 2007
3:46 am
19357
The plotter I worked on at Dickson in 1969 did use a laser in addition to the aperature wheel. The laser was fixed in position and the beam was positioned by ...
Bob Macklin
k5myj
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Nov 5, 2007
4:46 am
19358
DJ, My limiting factor on a small board is etching. I can make a phototool with 4/4 on a 1200dpi laser that has very little "Fuzz". The photomask on the copper...
Andrew
cunningfellow
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Nov 5, 2007
4:46 am
19359
... From: "DJ Delorie" <dj@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Monday, November 05, 2007 2:34 AM Subject: [Homebrew_PCBs] Breaking the 6/6...
Leon
leon_heller
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Nov 5, 2007
9:05 am
19360
... They etch thin copper, then plate it back up afterwards. That's a tricky process to do at home, I suspect. However, by the time you need 4/4 or whatever,...
Steve Wiseman
insane_regis...
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Nov 5, 2007
10:19 am
19361
... My main reason for pondering this is to get fan-out on BGAs *without* needing tiny vias. Not that I'm considering using any at the moment, but they seem...
DJ Delorie
djdelorie
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Nov 5, 2007
1:56 pm
19362
Hello, I just joined and have been using ferric chloride to photo etch brass sheets to make parts for models. This is a quick rundown of how it works: ...
Chris
schmuck804_99
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Nov 5, 2007
2:40 pm
19363
... From: "Chris" <CSchmuck@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Monday, November 05, 2007 8:19 AM Subject: [Homebrew_PCBs] New here and a...
Leon
leon_heller
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Nov 5, 2007
3:18 pm
19364
Chris, I don't think that you can much optimize your process by changeing the etchant. You easily can optimize the etching process itself though. You may want...
Markus Zingg
markuszingg
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Nov 5, 2007
4:06 pm
19365
Hi Parag, I can't answer your questions about the differences, but can tell you what did and didn't work for me. I've had good success with HP Inkjet...
Dennis
dl5012
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Nov 5, 2007
9:55 pm
19366
... I don't think that's super critical for signal traces--as long as the trace exists & survives etching without breaking; we don't care if it's a little...
dagmargoodboat
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Nov 5, 2007
11:46 pm
19367
... I was thinking that less waviness in the print gives you more leniency elsewhere. At least, my prints don't have a definite "edge", it's more of a 3 thou...
DJ Delorie
djdelorie
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Nov 6, 2007
12:16 am
Messages 19338 - 19367 of 23852   Oldest  |  < Older  |  Newer >  |  Newest
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