yes, press and peel blue. I haven't tried aluminum but I plan to in the future. I don't think the alloy would make much difference in terms of getting the pnp to stick (although it *might* make a small difference during etching). I generally use 6061 for machining and 5052 for sheet metal and bending applications. Aluminum tends to form an tough oxide layer very quickly (aluminum oxide is sapphire, yo). And I bet heating it only makes this worse, but I'm no material scientist so take this with a grain of salt. Also your large surface area can't be helping. The fact that you're getting it to stick at all suggests that it can be done. Its just a matter of developing a procedure that works. > > Thank you for the reply. Do you use pnp? I normally use the steel > pads with the soap in them, like a SOS off-brand. I have not tried > acetone yet. I tried an iron first because this is how I always do > PCB traces with perfect traces. That did not work. The I tried a > vacuum heat press 2 times without any luck. That gets in 100% flat > but still is not allowing a full transfer. It is blotchy and only > doing about 1 inch areas with no area having a large portion of > correct transfer. > > I see that you are using brass. Have you tried aluminum? And do you > think that it needs to be a certain type of aluminum? I am trying a > 8x16in size which is taking 2 sheets of pnp for each attempt. >
Message
Re: [ModularSynthPanels] Re: Living VCO
2009-08-13 by peter foti
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