Re: [Homebrew_PCBs] Other printers for DLP
2014-10-18 by dsimms4@...
Hi Mark, Anymore information on this would be useful. I have a Lexmark E232 on the way, which i believe is similar, thus would like to manipulate it for DLP of
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Re: Printer Recommendation
2014-10-18 by jamesmichaelnewton@...
I ve seen that exact problem with HP 3005 series printers. I found several posts by people who fixed their formatter boards by baking them. Good luck and let
Re: Adapting solder resist application to TT method
2014-10-18 by alienrelics@...
Please don t start a new topic by replying to an existing topic. Even if you change the subject line and delete the old messages, Yahoogroups posts it as part
Re: [Homebrew_PCBs] Re: Printer Recommendation
2014-10-17 by Kevin Byrne
I have that printer but am unsure what you need. I have a freeware program to get it to print 1200 times 1200 dpi called LJConfigure. I can help if you need
Re: Printer Recommendation
2014-10-17 by dennismiller55@...
Well I finally got around to picking up a used HP2015dn printer. I was looking forward to experimenting with making some boards. Unfortunately the printer is
Re: [Homebrew_PCBs] Re: Adapting solder resist application to TT method
2014-10-14 by Brad Thompson
Hello-- Has anyone with access to a 3-D printer attempted to use it as a solder-resist (or etch-resist) deposition tool? 73-- Brad AA1IP ... This email is
RE: [Homebrew_PCBs] Re: Adapting solder resist application to TT method
2014-10-14 by Dave G4UGM
I have used Nail “Polish” as etch resist. As it It is called Varnish in the UK, I assumed it was some kind of polyurethane paint like stuff. It is very
Re: [Homebrew_PCBs] Re: Adapting solder resist application to TT method
2014-10-14 by James
On Mon, Oct 13, 2014 at 4:04 AM, alan00463@yahoo.com [Homebrew_PCBs]
Re: Adapting solder resist application to TT method
2014-10-13 by fred27murphy@...
I ve used the dry film solder mask and think it s great stuff. I found it from a European supplier as Dynamask 5000. You ll need a laminator, the same UV
Re: Adapting solder resist application to TT method
2014-10-12 by alan00463@...
Yes, of course, my fingernail is only the second test in a series of tests. The third and most important test will be my hot soldering iron tip.
Re: Adapting solder resist application to TT method
2014-10-12 by alan00463@...
Suspecting nail polish might come in green, in blue, and in purple, I googled nail polish as solder mask . I found one bloke who claimed to have used
Re: Adapting solder resist application to TT method
2014-10-10 by ve7su@...
This dry-film solder mask is available in the US. Dry Film Solder Mask Roll of 12 in x 42.5 in (bigger lenght by request)
Re: Adapting solder resist application to TT method
2014-10-10 by jamesmichaelnewton@...
After doing TT and etching, just do TT again with the solder resist pattern. Toner does pretty well as a solder resist... If you are a bit careful with it.
Re: [Homebrew_PCBs] Adapting solder resist application to TT method
2014-10-10 by Harvey White
... This is most likely a UV cure film that s photosensitive, and needs to be developed. You laminate it on, expose it, develop it to get the unwanted parts
Re: Adapting solder resist application to TT method
2014-10-09 by chris@...
I haven t used it, but I m working on setting up an exposure system so I can. I ve only seen the film on eBay. Dry Film Solder Mask Roll of 12 in x 42.5 in
Re: Adapting solder resist application to TT method
2014-10-09 by alan00463@...
Forgot to ask (3) Does anybody know if solder mask made this way will stand up to the temperatures of a typical solder-reflow oven ? Allan
Adapting solder resist application to TT method
2014-10-09 by alan00463@...
I ran across a couple of youtube videos showing a 3-ply green film being applied to a board to make the solder resist layer:
[Homebrew_PCBs] Other printers for DLP
2014-10-05 by Mark Lerman
Mike, K4gmh, has successfully converted a Dell 1720 laser printer for direct laser printing of toner on PCBs. This printer appears to be essentially the same
File - monthly.txt
2014-10-01 by Homebrew_PCBs@yahoogroups.com
Monthly Reminder for Homebrew_PCBs list, please read: Messages and threads: Please do NOT start a new thread by replying to another message. Even if you change
Re: success at last over exposure/developer issues
2014-09-19 by mattmoose1969@...
Hi Fred, That s a really neat diagnostic idea which I ll try next time I m working with the chemicals. I d like to build in techniques such as that in order to
Re: [Homebrew_PCBs] PCB Drill Instructable
2014-09-18 by Harvey White
... I found that the following helps: 1: assuming EAGLE (anything else will be similar), where the bottom layer can be printed directly, and the top layer must
Re: [Homebrew_PCBs] PCB Drill Instructable
2014-09-18 by Mark Lerman
Thanks. Now I want to see how good a double sided board I can make. Mark
Re: [Homebrew_PCBs] PCB Drill Instructable
2014-09-18 by Harvey White
... Thanks for the attribution. Interesting way to invert the drill press itself, I hadn t thought of that. Since mine s a bit more complicated, it s not as
[Homebrew_PCBs] PCB Drill Instructable
2014-09-18 by Mark Lerman
I ve just uploaded my Instructable on how I implemented a pcb drill using a USB microscope. It uses an inverted configuration as per Harvey White (attribution
Re: [Homebrew_PCBs] Dry & Wet Photo Film
2014-09-18 by Hamilton Elliott
Hi Howard, Have a look at http://cpc.farnell.com/ Look at their online catalogue page 3502. You have to set up an account but you can opt to pay by credit card
Dry & Wet Photo Film
2014-09-18 by howard.chester@...
Hello all, This request is for the United Kingdom Members only(no offence to other International sources, but the import tax here is prohibative). Has anyone
Re: [Homebrew_PCBs] Re: What size drill bits ?
2014-09-17 by Harvey White
... Hmmm, don t. I tried the solid state relay approach, and it works mostly. The tool does not completely stop, but vibrates just a little. I d
Re: What size drill bits ?
2014-09-17 by alan00463@...
Thank you, Craig, and DJ, and Harvey, for showing me your setup s. Now I realize that addressing the ergonomics of drilling holes will be worth my while if
Re: success at last over exposure/developer issues
2014-09-17 by fred27murphy@...
I also get great results with Bungard boards. I used to use 1:9 metasilicate but have now switched back to 1:19 as that works fine. It can take a while to get
Re: Tip on Opaque Patterns with Canon ip6700D - Use Linux
2014-09-17 by fred27murphy@...
I m not sure about the ip6700D but my Canon Pixma MG5250 has a setting for T-shirt transfer printing that does much the same. It also mirrors, so take that
Tip on Opaque Patterns with Canon ip6700D - Use Linux
2014-09-17 by stan_katz@...
As with many homebrew prototypers, who use photoresist, I have always had a problem getting totally opaque patterns on transparencies from my inkjet printer. I
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-16 by DJ Delorie
Even if it were a perfect circle, a 0.25 plunge (about twice my normal) on a 12 radius means it s offset by only 2-3 mil. I think the amount of slop in the
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-16 by Slavko Kocjancic
... That s nice stand, but by design they have side motion too. The tool doesn t go straight down but in radius (12 ) of a circle. But of course that s 100%
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-15 by Jim Wood
DJ - That is a VERY cool stand!! BRAVO On Mon, Sep 15, 2014 at 12:43 PM, DJ Delorie dj@delorie.com [Homebrew_PCBs] ... -- Jim Wood 303-638-0302 (cell)
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-15 by TheRojecas .
Hi, I found that Dremmel sell this set (see photo) that has all the standards size drill bits of PCB for through-hole parts, including connectors and headers
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-15 by DJ Delorie
I have a box each of 13, 26, 35, and 43 mil (I think those are the right numbers) carbide PCB drills. That plus a set of standard twist-drills in
Re: What size drill bits ?
2014-09-15 by cs6061@...
Allan, First off don t buy Carbide drill bits if you are hand drilling the holes. The carbide is so brittle that you will snap them off on the first hole.
Re: [Homebrew_PCBs] Re: What size drill bits ?
2014-09-14 by Leon Heller
... Mega Electronics supplies resharpened carbide drills. They work just as well as brand new ones, and are quite a lot cheaper. Resharpening carbide drills is
Re: What size drill bits ?
2014-09-14 by craigl2@...
Generally people don t resharpen small drills. However I have seen several comments on the internet claiming that new, good quality, bits from reliable
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-14 by Rafał Mróz
Proxxon rotary tool and proxxon drill stand are perfectly adequate for drilling pcbs with carbide bits. The runout of the tool is small enough not to break the
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-14 by Jean-Paul Louis
Paul, I will disagree with your statement of 2 to 4 mils above lead diameter. For the past 40 years, the standard play for through hole has been a minimum of 7
Re: [Homebrew_PCBs] Re: What size drill bits ?
2014-09-14 by Jim Pruitt
How does one resharpen bits this small? Or do you? Thank you. Jim Pruitt ... From: Paul Alciatore palciatore@gt.rr.com [Homebrew_PCBs] To:
Re: What size drill bits ?
2014-09-14 by Paul Alciatore
Generally you go by the size of the leads on the components. You want a drill that is about 5 to 10 percent larger. But at least a minimum of 0.002 to 0.004
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-13 by Harvey White
... You don t want it to wobble from side to side at all. You may consider doing the following: 1) elevate the board on a platform with a 1/4 inch hole in it.
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-13 by alan00463@...
Thank you, James. I don t have a drill press yet, no, but I do have a Proxxon IB/E high speed electric rotary milling tool. I was thinking of getting a
Re: [Homebrew_PCBs] What size drill bits ?
2014-09-12 by James
For components, 0.8mm, 1.1mm, 1.4mm covers most stuff, mostly 0.8mm. As for carbide... if you have a (good) drill press, fine, if you are doing it by hand,
What size drill bits ?
2014-09-12 by alan00463@...
Getting ready to make my first PCB with through-hole parts. What diameter s of carbide drill bits do I need for drilling holes and how many? Thanks, Allan
Re: [Homebrew_PCBs] Re: Brass Direct print.
2014-09-05 by Mark Lerman
Hi Tim, I haven t tried printing on brass, but it should work. I ll see if I can find a brass sheet and give it a try. Mark At 06:04 AM 9/5/2014, you wrote:
Re: Brass Direct print.
2014-09-05 by Tim Gibbs
Hello Mark, I have been lurking on this site for a while. My main use has been photo etching thin brass or nickel silver sheet for model railway building.
success at last over exposure/developer issues
2014-09-05 by mattmoose1969@...
Glad to report that I ve had some significant success by changing the UV board type and the developer. I was experiencing incomplete removal of exposed