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2010-03-18 by Mark Lerman
I ve been milling boards for over a year. It works very well, though the learning curve is a little steeper than you might think. I use an AccurateCNC 360,
2010-03-18 by David Griffith
... Dremel attachments are poorly designed and have a lot of slop. A better solution appears to be the Proxxon Micromot line of tools. They re made of metal
2010-03-18 by sailingto
Looks neat - at 12,000 rpm it would drill holes. A speed control would be nice. I did note it is 220vac. Ken H.
2010-03-18 by Steve
I received an email from JAMECO a few days ago with subject line Etch Your Own Circuit Board . The email has a link to a website demonstrating the use of
2010-03-18 by sailingto
Well Mat - I was hoping someone would respond and get a discussion going on CNC milling of PCB. I have been reading about it and it sure sounds slick - the
2010-03-17 by Leon Heller
... Why do you need to print the image several times? I get adequate density printing once with the HP Deskjet printer I use. Leon -- Leon Heller G1HSM
2010-03-17 by William Alford
... i guess this is a little off-topic, but might be useful for those printing a positive on film for photo resist PC boards. i do some glass carving which
2010-03-17 by James
... I use a small vertical tank I made out of solvent welded 3/16 plexiglass with an aquarium heater on one side and a plastic tube with a row of tiny holes
2010-03-17 by James
... So is Ozone, and Bromine, and Hydrogen Sulfide, and many other common substances. Yes in large amounts they all can kill you. In smaller amounts they can
2010-03-17 by James
... I ve never used a printer that had good enough registration to do this, they just aren t designed for it, even off by a thou will be visible. What sort of
2010-03-16 by William
anyone have tips to have repeatable image registration on the page? i want to print an image and then reprint the same page for denser image as another image
2010-03-16 by Philip Pemberton
... Just tried the CPD5 at half-strength. Works like a charm! Takes about two minutes to develop if it s mixed with cold tap water, but at least that s better
2010-03-16 by Leon Heller
... I use sodium hydroxide solution to develop Fotoboard 2 (12 gm/litre). Leon -- Leon Heller G1HSM
2010-03-16 by Philip Pemberton
Hi guys, Just a quick note -- it appears the developing chemistry in the Seno SN110 roll-on developer is too weak to successfully develop Fotoboard2 (which is
2010-03-16 by mat_henshall
I am considering getting a small DIY 3 axis CNC router, something like this: http://zentoolworks.com/ To, amongst other things, make PCB s with. Clearly a
2010-03-16 by tig_aga
Hello everyone , I am new to this group. Like to introduce with all members. I am Ashley Brown and love to join this group and like to learn and share my
2010-03-16 by Bip's
Sorry for the late reply. I received the emails as a digest. Thanks DJ for the answers to my question. I have been building PCB and Assemblies professionally
2010-03-16 by humobilkft
Hello Homebrew Group! Are there any tips for this process: 1. Use a CNC/Mach3 setup to drill holes in copper board 2. Use same CNC/Mach3 setup and a suitable
2010-03-16 by awakephd
I can t remember if you addressed the possibility of using the etchant outside -- since I m still at the stage of mixing up HCl and H2O2 to make etchant, I mix
2010-03-15 by Peter Harrison
... My (commercial) exposure box has a lid with foam in it to press the whole lot evenly onto the glass surface. Pete Harrison
2010-03-15 by DJ Delorie
The R320 is limited to 1440 DPI (well, 5760x1440 but square pixels are nice) but that s probably still more resolution than needed for what we can home-brew.
2010-03-15 by Bip's
I have an Epson Stylus R320 that I want to use with transparencies for PCB artwork using photosensitized FR4 and UV exposure. I use a row of 20 UV LED (395nm)
2010-03-15 by pr0pert
The air in a submarine is hardly stagnet. It is constantly recirculated scrubbed and monitored. Chlorine bleach is forbidden due to the chlorine gas detectors.
2010-03-15 by Rocko
Chlorine Gas is poisonous it will kill you. :( It will eat the paint off your car and turn it into rust. It will do the same to your lungs!. It was used in
2010-03-15 by James
... With the stagnant air in a submarine any crud in the air could be a problem. Chlorine is not too bad in small amounts, it s used as a sanitizer in swimming
2010-03-15 by Marc Sulfridge
A poorly ventilated basement is the absolute worst place I can think of to produce chlorine gas. Chlorine is significantly denser than air, meaning that it
2010-03-15 by Leon Heller
... They d have sent you a sample sheet to try. I have to use the more expensive premium material on my HP Deskjet, and I ve still got some of the ordinary
2010-03-15 by sailingto
Thanks Steve - that article has a very good section on power supply bypassing and helped me understand the effects of 2.2uF vs .1 vs .001 uF caps for
2010-03-15 by Herbert E. Plett
... submarine s crew is absolutely forbidden to wash their clothes with bleach no matter how rinse... does this give you a hint?
2010-03-15 by DJ Delorie
I have an Epson R280 (Claria inks) and I ve used Jetstar s standard and premium films, as well as SilkJet films, all without problem. I even wrote a program
2010-03-15 by David Griffith
... I don t know if a respirator would be any good. Chlorine is also harms the eyes. It was used as a weapon in WW1. Dissolving stuff in HCl is fume-hood
2010-03-15 by nathan_h_tna
Thanks for helping me understand what precautions I need to take when using this stuff. From what I ve read, it looks like mixing the hydrochloric acid
2010-03-15 by jamesgailer
Thanks Leon, I have ordered some, I will try it and report Jim G3RTD
2010-03-15 by Leon Heller
... I used to use Mega Electronics JetStar film with an Epson printer. It worked very well. Leon -- Leon Heller G1HSM
2010-03-15 by jamesgailer
Hi I have access to two Epson inkjet printers, a DX4850 and a PX710W. The Epson web site FAQ advises only to use their film as other films expect ink droplets
2010-03-13 by lists
In article , ... With Rohs should now be using lead free solder anyway :-) -- Stuart
2010-03-13 by Ben L
I have not used it myself but there is a peelable solder mask. I believe both Allied Electronics www.alliedelec.com and Mouser www.mouser.com as well as
2010-03-12 by Jim Barnes
Hi, I have seen the warnings about not re-using toaster ovens for food after using lead-based solder paste. Do you all think the Pizzazz Pizza Oven can be
2010-03-12 by piers@u-h-p.com
the paste i got from my local hobby place says 6 mo unrefrigerated, 12mo chilled. Assumed that was normal? PG ... -original message- Subject: Re:
2010-03-12 by Stefan Trethan
Very fishy that they claim unrefrigerated life but ship on ice.... There s a separate fridge for adhesives and crap, none of that stuff gets into mine! It
2010-03-12 by Leon Heller
... I get it from Warton Metals: http://www.warton-metals.co.uk/ They lost the details of my first order (they d just started using on-line ordering). When I
2010-03-12 by Sz G
I don t know if it helps, but I used concave tips (a chisel tip with a slight depression in the flat part to utilize the capillary effect) to solder .5 mm
2010-03-12 by Philip Pemberton
... Where have you been getting gel-type solder flux from? I ve never seen it in any of the UK distributor catalogues (Farnell, Rapid, etc.) I ve been using
2010-03-12 by Sz G
In fact, the site claims it ships on ice . All the stuff looks quite professional there but I m reluctant to believe all the marketing bull**** on the page
2010-03-12 by Al Daniel
What are your suggestions for working with mechanically cut PCB patterns for SMDs? In this case, the solder pads are separated by routed valleys, making it
2010-03-12 by Stefan Trethan
Some paste needs to be shipped refrigerated, and express. The Zeph paste should not need that, since they claim it is good to use for 6 months without
2010-03-12 by Stefan Trethan
... The weird pyramid shape is one of the reasons a Zeph tool won t find it s way to my bench (apart from the vastly inflated price). How do you stack
2010-03-12 by alienrelics
Wow! What the heck? $12 shipping by UPS ground to Washington State for one tube. Gold plated shipping containers? Steve Greenfield
2010-03-12 by alienrelics
... Fast! I guess it is a style decision for them to use that shape of base for everything, but it sure does seem excessive for the vacuum pick-and-place.
2010-03-12 by sailingto
That sure looks good, and I was checking out with a $14 tube, then when shipping was over $13 - I canceled. I do like the idea - and the price sure is better