Re: TCi PCB program
2002-05-02 by crankorgan
Hi Alan, I turned a trace into a ruler at the bottom of the drawing. This way I could figure out what scaling to use. I found the KCam left out some traces. So
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Re: TCi PCB program
2002-05-02 by Alan Marconett KM6VV
Hi John, KCam! OK, now I remember you saying you used it. Can KCam then export in DXF? Sounds like a plan. Let me know how it turns out. I d like to see
Re: TCi PCB program
2002-05-02 by crankorgan
Hi Alan, After I made a test board. I then saved it to a directory. Then I found when I clicked on Gerber a set of Gerber files appeared in that directory. I
Re: TCi PCB program
2002-05-02 by Alan Marconett KM6VV
Hi John, No, I hadn t seen target. Similar to Eagle? 100 pins limit, might be a little tight. I m thinking that I will probably upgrade on Eagle, IF I can
Re: TCi PCB program
2002-05-01 by Alan Marconett KM6VV
Hi Dave, Which file did you try to get? I just tried the CNC, worked OK. Files are under files/TCI. Sometimes the link on the notice gets cutoff, and you
Re: TCi PCB program
2002-05-01 by crankorgan
Hi Alan, I am hoping my next PCs are less complicated. I spent days getting my DXF file just right. I tried every program there is. The TCI program is very
New file uploaded to Homebrew_PCBs
2002-05-01 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 : /PCB
Re: TCi PCB program
2002-05-01 by ph4appl
Hi Alan, I m definitely interested in what your program can output. As you know I m working on the same algorithm, so any development in that area is beyond
TCi PCB program
2002-05-01 by Alan Marconett KM6VV
Hi John, Dave, I finally found the URL for TCi. There are some additional EMP s there, if you are interested. I emailed Bruno about the Gerber header, and
New file uploaded to Homebrew_PCBs
2002-05-01 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 : /PCB
Wow!
2002-05-01 by alienrelics
The list has grown to over 200 members! Steve
Fwd: RE: PICBASIC-L Vendors for Graphic Overlay
2002-04-30 by Steve Greenfield
FYI ... __________________________________________________ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com
Clarification to our bellyaching
2002-04-30 by Steve Greenfield
I don t want anyone to feel that they ll be ridiculed for asking questions or that their previous efforts must be examined before we ll answer. One of the hard
Re: [Homebrew_PCBs] RE::: NO HANDOUTS here
2002-04-30 by Steve Greenfield
But you have 150 pages saved! You actually did the work and searched the web. We re bellyaching about those people who find one website or mailing list and
Re: RE::: NO HANDOUTS here
2002-04-30 by ph4appl
Well said John. The key difference is that you showed effort and had fun doing it. Dave ... such .But ... I ... I ... PCB s ... to
RE::: NO HANDOUTS here
2002-04-30 by marble_h
Well guys I think you may be right but only to a point I have about 150 webpages saved to check out things on Pcb building and such .But you fine guys here
RE: [Homebrew_PCBs] Stepper driver Chip
2002-04-30 by High Tech
Paul try this web site he talks about a L6203. Are you sure it is a L6503? There is a schematic to download here. http://www.pilotltd.net/cnc.htm Derek There
Re: [Homebrew_PCBs] Stepper driver Chip
2002-04-30 by hans@code-workshop.com
Paul, According to http://www.vego.nl/7/7_110.htm the L7180 is a Darlington Driver... L7180 4 x 80 V darlington-driver Can t find anything about the L6503...
Re: [Homebrew_PCBs] Stepper driver Chip
2002-04-30 by Russell
... For even more info on home cnc in general, get the yahoo list cad_cam_edm_dro.
Re: Stepper driver Chip
2002-04-30 by crankorgan
Hi Paul, Sounds like the board you have drives the hammers of the spinning heads. When you say line printer, do you mean the ones that print a whole line at
Re: [Homebrew_PCBs] Stepper driver Chip
2002-04-30 by Paul Waller
Hi all, Anyone heard of a chip called a L7180 that used to be made by SGS? I have a board with about 40 on it and thought that it could be good to drive
Re: [Homebrew_PCBs] No handouts here...
2002-04-29 by Russell
... There s a few links at http://www.desktopcnc.com for those more lazy...
Re: [Homebrew_PCBs] No handouts here...
2002-04-29 by Steve Greenfield
... Well said. Steve Greenfield __________________________________________________ Do You Yahoo!? Yahoo! Health - your guide to health and wellness
No handouts here...
2002-04-29 by ph4appl
Hello all. I m new to the group, but not too new to pcb building. I met John K. a few months ago by searching through the 20 or so home cnc pages on the web.
Re: [Homebrew_PCBs] spray etching ideas
2002-04-28 by Hugh Prescott
Should be able to find some nice and cheap ones at a farm supply store, look in the area where pumps, valves etc are kept. Ones I have seen are all plastic.
Re: [Homebrew_PCBs] spray etching ideas
2002-04-28 by Russell
... Just use the outlet thing from a plastic watering can (the type that s about 10-15cm diameter with hundreds of holes). *Any* kind of spray application of
spray etching ideas
2002-04-28 by Adam Seychell
I ve recently bought a few old PVC mixing tanks that were each fitted with nice little magnetic drive pumps (10L/minute). I m wondering about converting one of
Re: Finding stuff online for CNC
2002-04-27 by Alan Marconett KM6VV
Hi Steve, Hans has quite an elaborate Gcode and PCB file set for download. I just downloaded it Thursday. Took a while to finally get to the correct place to
Re: Finding stuff online for CNC
2002-04-27 by crankorgan
Hi Steve, I am unprepared for handling people. Over 20 people have contacted me about making up a kit for my Brute design. I tell them they can do it if, they
Re: [Homebrew_PCBs] Re: Finding stuff online for CNC
2002-04-27 by Steve Greenfield
Kind of ironic, isn t it? I can t find something in plain site(pun intended) and I m complaining about others not looking. ; ) Steve ...
Re: [Homebrew_PCBs] Re: Finding stuff online for CNC
2002-04-27 by hans@code-workshop.com
Steve, OK sorry about that.... hansw ... [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] Re: Finding stuff online for CNC
2002-04-27 by Steve Greenfield
Oh, no, I meant I couldn t find the other gentleman s PCB files, Hans, the ones he said he had for free download. At this point I think I d rather just pay for
Re: Finding stuff online for CNC
2002-04-27 by crankorgan
Hi Steve, I took the diagrams down, they were causing confusion. I was getting several requests for free plans every day! People could not understand why I
Re: [Homebrew_PCBs] Finding stuff online for CNC
2002-04-27 by hans@code-workshop.com
Yes it s still on the Download page http://hans-w.com/download.htm hansw ... ADVERTISEMENT ... [Non-text portions of this message have been removed]
Finding stuff online for CNC
2002-04-27 by Steve Greenfield
I ve had your site bookmarked for a while. I don t see the PCB patterns up there anymore. Did you take them down? As far as people not finding things on the
Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
2002-04-26 by hans@code-workshop.com
Scott, Yes I use them also, recently got some samples from Mill-Max they are
Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
2002-04-26 by Scott Hendershot
Hans, I use very tiny metal grommets to connect the 2 sides of the board. They even leave room for mounting components through them if you get the right size
Re: Parser for RS-274X header.
2002-04-26 by crankorgan
Hi Hans, At this point I think any type board will work better than what I am using. I found a source for 4 X 6 boards. All my designs fit on a 4 X 6
Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
2002-04-26 by hans@code-workshop.com
John, OK how about paper board. ! hansw ... ADVERTISEMENT ... [Non-text portions of this message have been removed]
Re: Parser for RS-274X header.
2002-04-26 by crankorgan
Hans, I use micrograin carbide Mechanical Etching bits. Drilling is one thing. Speed can be lower than 16,000 rpms. Dragging the bit through the epoxy for 800
Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
2002-04-26 by hans@code-workshop.com
John, OK ... I used to have the same problem with drills until I started using solid carbide, It seems they never wear out. Have you tried a 0.031 ball nosed
Re: Parser for RS-274X header.
2002-04-26 by Alan Marconett KM6VV
Hi Hans, Yeah, I downloaded PCB editor, and looked at the board with it. I was seeing the silk layer, as well as solder mask, I think. One layer was solid!
Re: Parser for RS-274X header.
2002-04-26 by crankorgan
Hans. When you mill a board, you hit the board material. The copper is soft. The glass epoxy board is like sand paper to the bit. I used to coat the board with
Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
2002-04-26 by hans@code-workshop.com
Alan, The Gerber files include empty layers. The Modular design is a two sided PCB, simply discard the empty layers. BTW I do not mill boards it s far too
Re: Parser for RS-274X header.
2002-04-26 by Alan Marconett KM6VV
Hi John, I hadn t got the feed down to a calculation like that! I just made some shorts cuts at slow speed to see what they d look like. My first board
Re: Parser for RS-274X header.
2002-04-26 by Alan Marconett KM6VV
Hi Hans, That s quite a nice project! I think I counted 8 layers in one of the GBR files! And with over 20 apertures, I ll have to get a parser for the
Re: Parser for RS-274X header.
2002-04-26 by crankorgan
Hans, I just did a Hybrid board. It uses a 7486-7474 and a L298. It is a single sided board. There is a need for a cheap controller that will run four wire
Re: Parser for RS-274X header.
2002-04-25 by crankorgan
Alan, Mechanical Etching bits can only move .0004 to .0006 per revolution of the spindle. This limits the machines that can make circuit boards. I always get
Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
2002-04-25 by hans@code-workshop.com
John, Thanks... I published the design for that very reason, I needed to replace some crap electronics that came with the mill and turned to the data sheets
Re: Parser for RS-274X header.
2002-04-25 by Alan Marconett KM6VV
Hi John, Yes, I can see that you ve spent a lot of time and energy designing your boards and mills. And writing manuals and preparing plans for projects also