Re: solder paste - cnc dispenser - times to boards
2004-04-25 by Dave Mucha
... going. ... work ... For an fast programmer and a fixed file type and a fixed output code, this could be pretty fast. couple of days to a couple of weeks.
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Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser - software steps
2004-04-25 by Stefan Trethan
... So you actually manually edit the code, by hand, on a command to command basis? ST
Re: solder paste - cnc dispenser - software steps
2004-04-25 by Dave Mucha
... the ... types, ... Others ... necessary. ... you just ... I use TurboCNC and in that they have a jump command, think of a goto in prgramming. I move to
How to save all messages Re: messages
2004-04-25 by evildrome_boozerama
Hi Steve, ... Thanks for the kind words. For anyone wanting to try PG Offline, I ve downloaded the Homebrew_PCBs messages & made them available as an archive
Re: [Homebrew_PCBs] Re: Penn Plotter direct etch resist application
2004-04-25 by Stefan Trethan
On Sun, 25 Apr 2004 16:45:27 -0000, grantfair2001 ... What do you expect from Plotting? yes the grooved tip may be some help, as said only the 0,18mm tip i
Re: Penn Plotter direct etch resist application
2004-04-25 by grantfair2001
Thanks, Stefan. The ink I have is thick and black. The thickness is why a grooved point is necessary. Although the post I mentioned says this ink is made for
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-25 by Jeremy Taylor
it s usually the CAM software not the hardware when it comes to macros, I think one would need 4 axis hardware though, with the forth being the specialty drive
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser - software
2004-04-25 by Stefan Trethan
... as in my other post, how do you insert these gerber commands? Do you edit the file all by hand or do you have a software where you just load the file? ST
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser - software
2004-04-25 by Stefan Trethan
... easily modified - how does one do that. that is the point i don t understand, is there some software which will do that for me or do i have to edit the
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-25 by Stefan Trethan
Thanks Ballendo, I understand now that my problem definitely will be the software, not the hardware.. I guess you meant it to sound easy but it is all a bit
Re: solder paste - cnc dispenser - software
2004-04-25 by ballendo
Hello Stefan, This is done by empirical testing/experimentation at first, using the canned cycle and/or macro params. Then it will be repeatable. I already
Re: solder paste - cnc dispenser - software
2004-04-25 by ballendo
Hello, Most pcb layout software of decent quality will output drill files, which as just described, can be easily modified to become dispensing files. And
Re: solder paste - cnc dispenser
2004-04-25 by ballendo
Stefan, If your cnc machine was set up as Dave suggests, you d use a couple of its normal features to make this easy: 1)Incremental motion, which is G91
Re: [Homebrew_PCBs] CuCl Questions
2004-04-25 by Stefan Trethan
On Sun, 25 Apr 2004 10:09:23 +1000, Adam Seychell ... Yea i love it. I tried several times and found the reading is really the same, even with the
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser - software
2004-04-25 by Stefan Trethan
... I expected that... I have a seperate solder paste layer which carries apertures where the pads are i think. of course i also could modify the library to
Re: solder paste - cnc dispenser - software
2004-04-25 by Dave Mucha
... some ... paste ... the ... cnc? ... impossible to ... one ... I think the software would be pretty easy if you can write software. TurboCNC is a very low
Re: [Homebrew_PCBs] CuCl Questions
2004-04-25 by Adam Seychell
Yes, the exact amount of initial water for titration is not important. The water is generally required so you have more solution volume to look at. 10 drops of
Re: Engineering Tools Utility
2004-04-24 by Steve
... at http://www.engnetglobal.com/tips/toolsapp/ Added to Links under Conversion Software. Thanks! Steve
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-24 by Stefan Trethan
... You basically say whatever the machine does wrong, it does it wrong the same way every time, right? What about the software, how do i get the file i need
Re: solder paste - cnc dispenser - stencil
2004-04-24 by Dave Mucha
... do ... yup. http://www.stencilsunlimited.com/
Re: solder paste - cnc dispenser
2004-04-24 by Dave Mucha
... you get ... This is one of those things you find out about machine control. with some practice, you find that by being 0.5mm from the pcb, and starting the
Re: [Homebrew_PCBs] Re: Penn Plotter direct etch resist application
2004-04-24 by Stefan Trethan
On Sat, 24 Apr 2004 19:00:17 -0000, grantfair2001 ... don t build a plotter ;-) ask the local pc gurus, i got mine for free with a load of pens. However, there
Re: Penn Plotter direct etch resist application
2004-04-24 by grantfair2001
Hi Stefan (and listmembers)- In an earlier post you said you had tried the Staedtler ink with a plotter pen, and it had failed to plot to PCB very well. You
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser - stencil
2004-04-24 by Stefan Trethan
... how do you apply the paste into the openings of the stencil? some kind of squeegee action? ST
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-24 by Stefan Trethan
... nowhere. i have to pay eur10/syringe. i wonder if the paste separates from the nozzle so uniformly that you get the exact same amount on each pad. ST
Anybody use an HP Laserjet 5L for Toner Transfer?
2004-04-24 by joshdewinter
I just got one of these things, but haven t had a chance to try anything with it yet. Anybody use one with any level of success? Thanks -Josh
Re: solder paste - cnc dispenser - stencil
2004-04-24 by Dave Mucha
... one pcb, ... I looked into stencils and though about the use of a stainless stencil the size of a credit card or similar. then one could have one for 8pin
Re: solder paste - cnc dispenser
2004-04-24 by Dave Mucha
... The syringe can be fed with a stepper. the syringe can be moved just like a spindle on the X/Y/Z so it would be an extreemly simple matter to move it to
pcb suppliers
2004-04-24 by Dave Mucha
Hi all, I m looking for suppliers of board materials. It seems that Think and Tinker are the most common and offer a decent price (about $7.00/sq ft, plain,
Re: [Homebrew_PCBs] CuCl Questions
2004-04-24 by Stefan Trethan
... make that 1.16 would be the lowest value. 1.6 is of course too much. ST
Re: [Homebrew_PCBs] CuCl Questions
2004-04-24 by Stefan Trethan
Hi all The new vertical tank is finally in use and i am pretty satisfied with the handling. it features a pcb clamp that can acceept all thicknesses, and this
Engineering Tools Utility
2004-04-24 by Zoran A. Scepanovic
Download a useful conversion calculator and terminology application at http://www.engnetglobal.com/tips/toolsapp/
Re: [Homebrew_PCBs] Electrolytic regeneration of CuCl
2004-04-24 by Stefan Trethan
... I thought i must decrease the cathode area to absolute minimum because otherwise the etch rate might overcome the plating rate. I will read the page...
Re: [Homebrew_PCBs] Electrolytic regeneration of CuCl
2004-04-24 by Adam Seychell
... Its not good idea to have cathode CD (current density) at level where hydrogen is almost being produced. I would operator at about half the CD of the CD
Re: [Homebrew_PCBs] Re: Pick and place rules for layout? pad2pad
2004-04-23 by Stefan Trethan
... I thought that too. but my layout software did the pad in one go, and then did a negative hole. of course the plotter has no negative color. when
Re: [Homebrew_PCBs] Re: Pick and place rules for layout? pad2pad
2004-04-23 by Stefan Trethan
... and i encourage using the pentalogix product. But it is not like it would be that hard to do with a image editing software. just enlarge the left border by
Re: Pick and place rules for layout? pad2pad
2004-04-23 by Phil
... combine ... and when doing panels of double sided boards, you want very precise placement for both sides. plus, the pentalogix product is well designed
Re: Pick and place rules for layout? pad2pad
2004-04-23 by Phil
I ve not been able to figure out how to get the drill holes but its not really a problem for me. I just drill in the center of the pad. You can output the
Uploading EXE's Re: New file uploaded to Homebrew_PCBs
2004-04-23 by Steve
Please provide a link to where you found this. For a variety of reasons, I do not like uploading EXEs. Problems of ownership/copyright, viruses, and why upload
Re: [Homebrew_PCBs] New file uploaded to Homebrew_PCBs
2004-04-23 by Stefan Trethan
Nice software, thanks... I want to suggest using google. if you search with google for 1 ounce in gram you get what you want. you can also make it calculate
Re: [Homebrew_PCBs] Re: Pick and place rules for layout? pad2pad
2004-04-23 by Vasile Surducan
... because usualy is altering the scale factor...
Re: [Homebrew_PCBs] Re: Pick and place rules for layout? pad2pad
2004-04-23 by Stefan Trethan
... not necessarily. e.g. print to pdf and export with acrobat to a pixel image. then you get 1:1. of course you can also use post script or something. Maybe
Re: [Homebrew_PCBs] Re: Pick and place rules for layout? pad2pad
2004-04-23 by Vasile Surducan
... Phil, does the drill size are imported ok ? For TT transfer. thx, Vasile
New file uploaded to Homebrew_PCBs
2004-04-23 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
Re: [Homebrew_PCBs] Re: Pick and place rules for layout? pad2pad
2004-04-23 by Stefan Trethan
... If you are using TT you most likely don t need the gerber files? Why don t you panelize with a picture editing software? ST
Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser
2004-04-23 by Stefan Trethan
... details? ST
Re: solder paste - cnc dispenser
2004-04-23 by ballendo
Stefan, Yes. Not only possible, but easy. Ballendo ... one pcb, ... really placed ... the
Re: [Homebrew_PCBs] solder paste - cnc dispenser
2004-04-23 by Stefan Trethan
Hi all, following the discussion about the solder paste stencils i wonder if it is possible to dispense the solder paste with a cnc machine. In my opinion a
Re: [Homebrew_PCBs] Re: Pick and place rules for layout?
2004-04-23 by Ron Amundson
... The chemical etching was difficult to control to keep the sidewalls of the etched area flat and uniform. The variability of the process was a real problem.
Re: [Homebrew_PCBs] Re: Pick and place rules for layout?
2004-04-23 by Stefan Trethan
... My guess would be the etched edges are nowhere near clean, they will release the paste harder i reckon. ST