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2010-05-12 by Piers Goodhew
Wandering a little off-topic, but I ll keep it brief. One of the interesting things about this group, in my short time in it, is the almost complete lack of
2010-05-12 by Eddie Stassen
The subject of cutting pcb s seems to pop up frequently and probably should be addresses in a FAQ somewhere. I am always somewhat astounded by the number of
2010-05-12 by Donald H Locker
Hi, Ken. Good idea. How about going one step further - print an annulus centered on each hole, do a TT to the board, remove the paper and drill through the
2010-05-11 by Harvey McRae
I checked the Dremel Catalogue, they have a router table but i do not see a table for a saw. There is a little saw guide, but I don t think it would be of any
2010-05-11 by Harvey McRae
I have made a little tin template for my little PCB s I bend the one edge and one end to act as a guide, place the pcb into the corner .... go to my little
2010-05-11 by Frank P
So I decided to do some more research on the Internet on this subject and look what I found!! http://www.youtube.com/watch?v=61Q_6-cRua4 Cheap and easy....but
2010-05-11 by Frank P
Harvey, Thanks for your input. Some of the more elaborate solutions (table saw, band saw, etc.) seem like a bit over-kill for me, if I am only making a PCB
2010-05-11 by Frank P
Ian, Its a little hard to see from the pictures, how big is it? At $119, I would imagine its a tabletop unit.
2010-05-11 by mlerman@ix.netcom.com
For those who are following this, I gave you the wrong spring description and part number. It should be McMaster-Carr 9664K74, 3/16 by .016 wire. 36 inches
2010-05-11 by Tolga Abaci
I think it could work, but it might be difficult to prevent the drill bit from slipping. ... [Non-text portions of this message have been removed]
2010-05-11 by sailingto
... Well, not sure if drilling first will work or not, my idea was to print drill pattern on thin paper so holes n vias could be seen from back side, put TT
2010-05-11 by Tolga Abaci
For the vias, I d suggest to make the via hole a really tight fit. Then, it becomes more difficult to put the wire in the hole, but the wire does not slide all
2010-05-11 by Kerry Wentworth
I also use a CNC machine to drill holes. I have an old XY stage that was given to me, and I built a Z stage that drives a Dremel. I m using Allegro chips,
2010-05-11 by Tolga Abaci
Ken, thanks, I am glad you like my work. It took me some time and quite a bit of trial and error to get my PCB making to this stage. There s still quite a bit
2010-05-11 by sailingto
Tolga, I am VERY impressed with your PCB work. I ve spent a good bit of time reading and looking at photos - those are some VERY good double sided boards. I
2010-05-11 by Tolga Abaci
Actually, there is another method that I ve been experimenting with. It s based on toner transfer and a glass paint called Pebeo Vitrea 160. You can see some
2010-05-11 by Harvey McRae
Now you have given me a new idea.......Try a 4 diamond saw ...I have one of these wet saws in my shop but never thought to try that avenue. I have the blade
2010-05-11 by micro_minded
I just ran into this website (http://techref.massmind.org/techref/pcb/etch/directinkjetresist.htm) that references this group. Turned an Epson into a flatbed
2010-05-11 by James
... Yeesh! At that price you d be better off just having boards made! I strive to make my homebrew PCBs as good as possible, but if I want production quality,
2010-05-11 by James
... Can you get carbide tipped blades for it? FR4 PCB is murder on saw blades, you need something really hard or it will dull very quickly.
2010-05-11 by bebx2000
... Try a 4 diamond saw ... http://tech.groups.yahoo.com/group/Homebrew_PCBs/message/25400 Baxter
2010-05-11 by Andrew
No, not really. The problem with that Ryobi is that it is designed for cutting wood, which means that the blade speed will be relatively high. This will tend
2010-05-11 by grantfair2001
I use tin snips. The kind used to make straight cuts. I ve seen them for $10.00. See:
2010-05-11 by James
... I use a few different methods. When I have time, I go to my friend s machine shop and use the sheetmetal shear, obviously this isn t an option for
2010-05-10 by micro_minded
lpkfusa.com has some awesome products thats for sure, for a slightly cheaper alternative I have found www.thinktink.com They have soldermask ($300 for 40ft) as
2010-05-10 by Harvey McRae
Before you build your mini table saw, cut a few pieces by hand with the dremel.. I find that unless I m running the Dremel tool at near top speed, it lacks on
2010-05-10 by Harvey McRae
Thanks Frank for that suggestion...The dremel works fine for cutting one little piece.. Where I needed 20 i needed a faster proceedure.. I have been there
2010-05-10 by Andrew Villeneuve
Ken, You re right, I was actually thinking about this product in my last post: http://www.lpkfusa.com/boardfinish/promask.htm The price point is targeting
2010-05-10 by Henry Liu
p Sent from my HTC Touch Pro2 on the Now Network from Sprint®. ... From: Frank P Sent: Monday, May 10, 2010 11:53 AM To:
2010-05-10 by sailingto
I did not realize Pulsar had any solder resist masking options. I have tried the green foil, but that s for sealing the toner, not to function as a solder
2010-05-10 by Ian
Unfortunately, I don t have one at the present to test with but I would think that a band saw would yield better (cleaner) results and would be much safer than
2010-05-10 by Stefan Trethan
Yes they do. Proxxon also makes small circular saws. A saw like this with a carbide blade produces the cleanest cuts of all the tools I tried. However it is so
2010-05-10 by Frank P
I wonder if MicroMark sells small table saws?
2010-05-10 by Frank P
Harvey, On one webpage, I saw a person cutting perf board with a dremel fitted with a cutting wheel and placed in a vise. The dremel was mounted horizontally
2010-05-10 by Frank P
$13 is more in my budget than a table saw. ;-)
2010-05-10 by Andrew Villeneuve
There are definitely cheaper alternatives to the printing and etching parts of the product, but the solder resist masking seems to be thing that the
2010-05-10 by sailingto
Andrew, the Fab-in-a-box solution does give good results, and if yo purchase it from them, it is EXPENSIVE!!! BUT there are MUCH less expensive ways of
2010-05-10 by rlspell2000
I was looking at your kits, and I almost bought one. Then you offered to sell me a 4oz bottle of the special etch resist ink for $100...
2010-05-10 by sailingto
Over $200 but it would cut thick PCB for sure. It would have the same problem as the HF paper cutter I linked to, thin strips cut off would tend to curl. Ken
2010-05-10 by Andrew Villeneuve
This is interesting, but what s the benefit of driving the jet head directly from an MCU? As I understand it, the real challenge is finding a suitable way to
2010-05-10 by Andrew Villeneuve
Solder resist masks are made of polyurethane - I would suspect that you might be able to achieve something cosmetically comparable by layering pigment-based
2010-05-10 by rlspell2000
This seems to work pretty good... http://cgi.ebay.com/12-INCH-BENCH-METAL-SHEAR-CUT-ROUND-1-2-CUT-PLATE-1-8-/310195137016 For trimming notches, etc, I use the
2010-05-10 by idbruce
Okay this is my first post. After trying several different methods with undesirable results, I finally tried something I read about on someone elses post
2010-05-10 by sailingto
Understood Harvey, this is more of a one time deal - Harvey - you are a GREAT guy doing all this work for the group. Model railroading has always amazed me
2010-05-10 by Mark Lerman
For those interested in this thread I have just posted the complete pdf detailing the modification of a Lexmark E260 printer to do direct laser printing. It is
2010-05-10 by Simao Cardoso
... Just for curiosity and first of all can you tell me where/how did you know about PTH electroless nickel ? Now to clarify, from what i know, there is no
2010-05-10 by Harvey McRae
!!!!!!!!If I needed 20 boards I think I d seriously consider looking at a commercial offering.!!!!!!!!!! I m putting on a little clinic on etching boards for
2010-05-10 by Andrew
There s been a lot of discussion, quite recently, about this as well. My vote is for a metal-cutting bandsaw and fine-tooth metal-cutting blade -- about $160
2010-05-10 by micro_minded
Has anybody tried printing a solder mask onto their boards? I currently used pcb-fab-in-a-box with the GBC laminator and I can get 6mil traces and perfect
2010-05-10 by sailingto
Harvey, you are correct - the PCB section that is cut off does not do well at all, unless it s pretty large - couple of inches maybe? Most all my boards are at