Re: oldie but newbie mystery of the universe
2010-09-10 by designer_craig
You can make good boards, it all depends on the feature size you require. I have done a few toner transfer with mixed results, my Borther laser printer is not
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Re: Has anyone Ever Experienced with XRay and Printed Circuit boards?
2010-09-10 by designer_craig
I have Xrayed boards to find shorts/opens on BGA packages but never used X-ray film for negatives. I have used Ilford Ortho film to make contact positives for
Has anyone Ever Experienced with XRay and Printed Circuit boards?
2010-09-10 by musick7@att.net
Could this be done? Could Xray paper/Film be used to make a Negative for a double sided PCB? I ve got access to an XRay developer machine and was wondering
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-10 by rrrydman@aol.com
My suggestions for a print house paper shear are intended to pertain to the person requesting how to shear a book suitable for a paper feeder on a scanning
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-10 by michael tenore
Find a sheetmetal shop they usually have a jump shear that can cut 1/4 inch thick aluminum..A metal shear blade has a different cutting angle that is more
Re: [Homebrew_PCBs] Re: DLP DS Update
2010-09-09 by Mark Lerman
It s in the files section of this Yahoo Group - Mark
Re: DLP DS Update
2010-09-09 by jamesmichaelnewton
Hi Ken and Mark, When Ken says Mark did a fantastic job of documenting, is that a reference to the many photographs on the pbase site, or is there another set
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-09 by rrrydman@aol.com
Commercial paper shears are an entirely different animal. These typically are large machines for commercial book binding. The have multi ton presses to shear
Re: thinking of routing....
2010-09-09 by mat_henshall
I didn t know enough to ask these questions... I live close to Xin who runs the operation, and arranged to meet him and see it in action and the sort of work
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-09 by Alessio Sangalli
... In this case I wanted to cut a book bye as
RE: [Homebrew_PCBs] laminate flooring cutter for PCBs
2010-09-09 by Boman33
Cheaper, yes. No, not as good. The regular shears will distort the PCB as it is cutting. The German one supports both sides of the board. Bertho
RE: [Homebrew_PCBs] laminate flooring cutter for PCBs
2010-09-09 by Steve Maroney
http://www.harborfreight.com/hand-tools/snips/12-inch-power-snips-98091. html much simpler. Best Regards, Steve Maroney Business Computer Support, LLC Mobile
RE: [Homebrew_PCBs] Re: thinking of routing....
2010-09-09 by Tony Smith
... ABEC7 (in a skate shop) is a marketing gimmick. For skating you want crap bearings as free running is more important than run-out. That rating is for
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-09 by Leslie Newell
Hi Charlie, I would use skateboard bearings. They are available in ABEC7 accuracy for very little money. Skate bearings are standard 608 size metric bearings,
Re: thinking of routing....
2010-09-09 by gandolfreefer
Les, thanks, I see your point about flat ground stock. I do remember being amazed at how inexpensive flat ground stock really is when I used to order it for
Re: thinking of routing....
2010-09-09 by gandolfreefer
Hi Mat, WOWZER, their 7 x 7 kit is so cheap it s gotta be the most screamin deal on the planet!!!! I have only one cavil: it is very frustrating for them not
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-09 by Slavko Kocjancic
... Paper shear works very nice for few cuts. FR4 laminate is glass epoxy and that stuff make cutting blade dull very quick.
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-09 by rrrydman@aol.com
I would try going to a local printer who might have a paper shear. I think they could get excelent results for only a few dollars, and the results might allow
laminate flooring cutter for PCBs
2010-09-09 by Stefan Trethan
Just spotted a laminate flooring cutter in a local discount store ad. This should work for
Re: Diamond saw
2010-09-09 by bebx2000
... perhaps... However, I think diamond cutting works best on harder materials. Baxter
DLP copper fabric and Lexmark E260DN
2010-09-09 by bebx2000
Here is a good Open Box deal on the Lexmark E260DN - $96.54 http://www.techforless.com/cgi-bin/tech4less/34S0306?id=CKxkHT4p&mv_pc=221 I almost bought one, but
Re: [Homebrew_PCBs] Re: DLP DS Update
2010-09-09 by mlerman@ix.netcom.com
Wow - perfect solution to the part that was causing me a lot of aggravation! Great job! It wouldn t surprise me to see a commercial DLP printer in the near
Re: [Homebrew_PCBs] Re: DLP DS Update
2010-09-08 by Jim
Hello Mark and Samson Mark, Its too bad your day job interferes with your hobby! In a previous post today, I briefly described how I modified (with Mark s
Re: [Homebrew_PCBs] Re: DLP DS Update
2010-09-08 by Jim
Hello Samson I have also modified an E260d and am getting very good results. I didn t modify the E260 to the extent that Mark did. I essentially removed all
Re: [Homebrew_PCBs] Re: Diamond saw
2010-09-08 by Alessio Sangalli
... I told you :) I am placing the order now. I have an off-topic question: do you think that blade can cut books? I would be interested in cutting away the
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-08 by Malcolm Parker-Lisberg
Zen toolworks not toolkits I don t suffer from insanity I enjoy it! ... From: mat_henshall Subject:
Re: thinking of routing....
2010-09-08 by mat_henshall
Charlie, I recently purchased a 3axis router kit from www.zentoolkits.com. A good price and straightforward to set up. I can recommend it for both routing
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-08 by Leslie Newell
Hi Charlie, ... By the time you get it machined, extrusion is likely to be more expensive than ground flat stock and less accurate. It is usually available in
Re: thinking of routing....
2010-09-08 by gandolfreefer
Les, I can achieve .001 (linear table motion) steps fairly easily with steppers. Depending upon the toothed drive belt, I would assume the precision would be
Re: [Homebrew_PCBs] Re: DLP DS Update
2010-09-08 by Mark Lerman
Hi Samson, Yes, I know that my final design does not fully mesh with the text. I ve gotten bogged down at work and have not looked at this stuff for months. In
Re: thinking of routing....
2010-09-08 by gandolfreefer
Les, thank you very much for the outstanding advice. I am def going to go stepper, and it s simply because of cost; there are 200 step steppers available for
Re: DLP DS Update
2010-09-08 by smgloser
Hey Mark, I just wanted you and everyone else to know--you are AWESOME. Documentation is key to a lot of these projects, and your steps made the modifications
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-07 by Leslie Newell
Hi Charlie, ... Yes, it isn t difficult. Preferably you want to use ball screws for the drive. Acme screws will work but any backlash will cause problems. HTD
Re: thinking of routing....
2010-09-07 by gandolfreefer
Chester, thanks. That looks good!! It s a thousand bucks very well spent indeed. I ll have to think about the pros and cons of scarfing up the dough or DIY ing
Re: thinking of routing....
2010-09-07 by gandolfreefer
Les, dude, thanks. Having been a machinist once on Bridgeport milling machines, I recognized that everything you were saying was spot on. I can save a serious
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-07 by Leslie Newell
I said the free options were quirky ;) First make sure you have JRE installed. You can get it here
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-07 by Herbert E. Plett
VISOLATE? went to the pages, saw the pictures and find it more than interesting. now, downloaded the file but there is no documentation whatsoever and I have
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-07 by Howard Chester
Hello, Elektor Magazine (now available in the USA) has a kit form PCB milling-drilling unit at about 750Euros. Optional extras include front panel milling ect
Re: [Homebrew_PCBs] 1oz vs 1/2 oz
2010-09-05 by Leon Heller
... Etching takes a lot longer. Leon -- Leon Heller G1HSM
Re: [Homebrew_PCBs] 1oz vs 1/2 oz
2010-09-05 by Stefan Trethan
18u etches faster than 35u, less time, less undercutting. I use mostly 18u simply because it is the material used by the pro board houses (which they then
Re: [Homebrew_PCBs] 1oz vs 1/2 oz
2010-09-05 by Bob Macklin
But the 1/2oz is better for etching thin traces! Bob Macklin K5MYJ Seattle, Wa. Real Radios Glow In The Dark ... From: Steve Maroney
1oz vs 1/2 oz
2010-09-05 by Steve Maroney
Dear Gang Do you guys prefer 1oz copper clad over 1/2 oz ? My initial thoughts is the at 1oz is sturdier and can tolerate heat better than 1/2 ?!? Please
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-05 by Leslie Newell
Hi Charlie, ... With the right equipment you can get quite fine traces. I have seen boards made this way with two tracks fitting between 0.1 pitch pads. To
Re: [Homebrew_PCBs] Re: thinking of routing....
2010-09-05 by Stefan Trethan
... I think I heard someone say that about all of the other methods before ;-) Not sure if it is a good idea to use just one bit for milling and drilling,
Re: thinking of routing....
2010-09-05 by gandolfreefer
ummm, another advantage that just occurred to me is that the router table approach could also route deep trenches between boards, so breaking the larger board
Re: thinking of routing....
2010-09-05 by gandolfreefer
Thanks, Stefan, Yes, there are two worries that I mainly have about using a 3D router: burring and minimum trace width/clearance. I m pretty sure surface mount
Re: [Homebrew_PCBs] thinking of routing....
2010-09-05 by Stefan Trethan
You would just shift to another set of problems. Instead of paper and stuff you will think about milling bits, burr, milling depth, etc.... ST On Sun, Sep 5,
thinking of routing....
2010-09-05 by gandolfreefer
I really appreciate all the answers; very helpful, and I m still rereading them all and ruminating on it all.... ....part of figuring out what method I m going
Re: Diamond saw
2010-09-05 by bebx2000
... I tried my new 8 mil Diamond saw blade (dry) and it makes perfect, fine cuts in FR-4 with virtully no dust. It is much better than the thicker tile blade
RE: [Homebrew_PCBs] Diamond saw
2010-09-04 by Boman33
Thanks Chester, That sounds like a neat job: Getting a chance to blow things up and get paid for it☺ Have a great weekend, Bertho