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Ok, copper etchants come in many different flavors. The ammonia alkaline are type the most commonly used for tin or tin/lead metal resists (i.e. pattern plating). The tin forms near perfect resistance

By starting off with blank copper cladded board you mean ? then yes. The process is called "pattern plate" which I think is the most common method of making through hole boards, both double sided and

You read my mine this was my next question. If you tin/lead ammonia etch. Is this the same stuff called Liquid Tin by MG Chemicals and a similar prodouct by Datak? Or would these get disolved by

machine I didn't mean second hand. I have been looking at the Prototype plating machines. Like QuickPLATE. But they all seem to use the process of squeezing conductive ink into the hole manually.

At 04:11 AM 6/03/2002 -0000, you wrote: >--- In Homebrew_PCBs@y..., Adam Seychell <adam_seychell@y...> wrote: >> The cost is not the problem since the carbon dispersion should be >available >> free

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Homemade PCB equipment/Dscn0329.jpg

I've been interested the subject of plated through holes for a long time, however the cost of making 2 sided PCB's is so low it is not worth the effort to start the mess with chemicals and plating

I'm afraid it doesn't work like that. Buying a secondhand plating machine ain't going to make you PCBs. There is long list of processing tanks required along with an good understanding of the process.

I have to admit I tradionally prototype using wirewrap method. I find this faster with debugging. But since everyone is moving to highspeed devices with more compact densities, (like PGA), I have no

available enough to far. The copper is a lot relative to plating then rate for time to get concern I have

any for Yes, it simply not worth doing PTH for a hobby. That's why I am selling the boards I make. Admittedly up until now they have all been single sided requests.

If I had a design with hundreds of boards, or multilayer boards, or even tens of through-holes on 4 or 5 boards, I think that I could find better uses of my time than etching them "homebrew" style.

j.walton@... writes: Exactly! The only things that would make PTH at home "worth it" would be any one or combination of the following: 1. The personal "need" to prove "I can DO that!"; 2.

The cost is not the problem since the carbon dispersion should be available free from one of the large colorant producers. The dye is similarly available. I got 20 kg of dispersion paste for $130 AU.

I think very highly of CADINT. They now have a free version which is good for up to 250 pins. In fact, you are using the paid for version with a license good for 250 pins. That license is

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Making Plated Through Holes at Home

I think this product is just for reworking/repairing traces. Also imagine if I had a board with 10000 holes. Do you think I want to spend me time coating each hole. -- John Hallows

This sounds good. I assume that this is just for hole activation and standard electroplating is done next to build up the holes. What is the success rate at home? And estimated costs? I don't want to

No doubt it has a use for repairing things that need to be conductive. I can't see squeezing epoxy into 500-1500 0.032" holes. Another thing it would not allow through hole connections

Why not silver plate your PCB. It's easy to do with "CoolAmp". CoolAmp silver plating powder is applied to a clean PCB with a damp cloth pad. Simply dip the damp cloth pad into the powder and run onto