... clad ... You missed curing. You have to cure the ink at the temperature specified at http://techref.massmind.org/techref/pcb/etch/directinkjetresist.htm ...
You have to cure the ink before you etch. 230C to 240C works best for me. If you preheat you should get the ink to look perfectly smooth after printing. If you...
... Opps yes just in the post though I have been curing the pcbs tried the oven at 200deg for 1 hr and right on the flat cooktop at semi low until the pcb...
... WOW thats alot hotter than I was going. Do you bake it at that temp? For how long? ... I tried this but I think my method was useless by the time I ran...
Ok I went and looked at the pics again and yet I am doing something wrong. Duh! First nice mods on your printer. I am using a c84 BTW dont know if I said that...
I do agree Guja ,but i can't find how to print both on the same page with Altium !!!! ... vertically, top layer mirrored) in a single pass. "Offset" may vary....
It is very easy. You have to create postscript files of selected layers (print-to-file). Than you can import them into CorelDraw, where you can align, flip,...
I use a small heat-gun to preheat the board to about 75C. This heating is done on the feed tray and carrier so it is ready to go when I hit the print button. I...
Everyone, thanks for the help. The problem really turned out to be the paper. I live in Canada, so the paper we get here is much different names/numbers that...
Hi all, I am building a tube guitar amp PCB. It requires heavy copper on thick boards. I would like to use 1/8" boards, but cannot find any locally....
... Ok I can do that. After reading more last night I think you guys were right I wasnt cureing the ink but just drying it real well at 200 deg F. I think ...
... appreciated! ... You could probably get this to work, but for thick through hole parts in tube amps, I believe the reason for 1/8" board is stability in...
Thanks for the info Don. I am actually quite well versed with Aiken, eyelet construction, PTP, turret construction versus PCB. What I am looking for is...
... Good news. I think that's the same as the Office Gloss I'm using from Hammermill. I was looking a both and they match up perfectly (I bought the...
... appreciated! ... Hi Don, I haven't tried TT on anything heavier than 1oz but with my results I believe it would work well on 2oz boards, especially for ...
... For the etching, you might want to try using Muriatic Acid and Hydrogen Peroxide, instead of the Sodium Persulfate. It would be much cheaper, much more...
... The MSDS (Material Safety Data Sheets) for J-B WELD shows that there is 10-20% iron powder in the resin and hardner. Perhaps this would not be a good ...
... Doh! Nevermind. Still, epoxy and heat don't get along, something to keep in mind. (jbweld is known to me because it's used to hold model rocket engine ...
Actually, I believe that " J.B. Weld" is simply a two-part epoxy system with iron powder added. Same basic characteristics as generic epoxy material. Since the...
... Why do you get that impression? FR4 _IS_ glass in an epoxy matrix. In fact, JB weld itself is an epoxy if i'm not mistaken, only they take more $ for the...
... From all the stories of motor mounts that fail due to epoxy softening. And from my dad telling me to use a torch to remove epoxy plugs from car parts. And...
There are accountable reasons why PC boards heat up. Usually it is because the designer did not take into consideration how much current various traces on the...
2oz is good,but I wanna know the PCB layers you layout? I mean you must consider the thermal derating in the preparation of your design. ... From: Roland...
Hi guys, I am wondering what people use to coat the copper traces to prevent corrosion. Is there something that can be soldered after it is coated? I am sure...
... I think what you want is to tin the copper not soldermask it. You can get a tin plating solutition that you dip the board in and it will plate the copper...
