Sorry, I didn't write the formula and it was over five years ago. I do recall I purchased the H2O2 from Sally Beauty Supply. I can look up the product label...
Hi All Am having some probs with my drill\stand setup. The stand is the type with a single slide piller, it is meant for a 240v work drill (i use a dremel...
... Proxxon TBM 220 -- Best Regards, Zoran A. Šćepanović zastos@... http://zastos.com +381 63 609-993 -..- If a program is useful, it will have to be...
... I use it all the time. Drilled couple thousand holes 0.7 mm dia. HTH -- Best Regards, Zoran A. Šćepanović zastos@... http://zastos.com +381 63...
... I built a wooden dremel stand that almost never snaps bits (I've snapped far more by dropping them, than by drilling): www.delorie.com/pcb/dremel-stand/ If...
I would agree. Nothing like the old HP printers. I have an old HP LJ3 (which I think is older than the LJ4 by a bit). If the printer is throwing an error code...
tda7000 Are you using the FBS-240E or the 12v version in the MB140/S ?, am thinking of getting the FBS-240E Also i note that the stand has a fence across the...
I am a newbie to this list and am keen to set up for using Riston (negative) photoresist for making small quantities of relatively small PCBs. I used it in...
Thanks for a detailed post with good information. A quick question: Why not also consider positive resist? ============================= From: Robin Whittle...
I have the FBS-240E tool. Never used the 12v one so can't comment on those. The fence on the base can be moved and even removed. If you need even more space,...
Hi Robin, I use Kinsten precoated board from Kalex and find it excellent, the difference being it is positive acting resist!. Look in the Kalex catalogue for...
I went down a similar track a few years ago Robin, as I had a stock of Riston pre-coated board inherited from a closed major electronics workshop. The problem...
The H2O2 I purchased at Sally Beauty Supply was Salon Care Professional 30 Volume Clear Developer. The staff were very curious about how it worked for making...
Hi Boman33, Don and Bill, I am responding to your replies to my message "Riston precoated FR4 in Australia, Riston sheets and rolls". I am pursuing Riston, or...
Hi Robin, I 100% agree with you about the limited performance of toner transfer. My question is: why exclude positive resist options? Years ago I used to make...
Hi Bertho, Thanks for the link to your test charts. I will use these when I have the Riston film in a few weeks time. At present I only have a small piece of...
Understood Robin, although I have not encountered problems with the Kinsten positive pcb in terms of registration or under-cutting etc. I must check my Riston...
Someone mentioned recently they were going to perform experiments using screen printing emulsion as photoresist. Are there any updates on the discussion? Are...
... That may have been me. I have tried it and the results were not encouraging or usable. I used a premixed diazo-type emulsion and coated a few boards with...
Hi guys a possible solution may be closer than you think Yahoo groups have groups for recycling going under various guises of Recycle they do seem quite...
Hello everybody in this list. I've a cnc machine purchased some time ago, but never used. Now it's time to use it and produce first pcbs. Can you help me to...
First off would be making sure you have a very accurate machine and a good setup, and also a spindle with very little runout. You need to hold your boards...
... Have you opened it up to have a look? Surely if you're etching PCBs you possess a multimeter, soldering iron, and some basic electronics knowledge? I fixed...
