BobCAD CAM V25 Post Processor

[aldepoalo]

Recently I was working with a customer that needed a post processor for the V25 software and his ShopBot machine. After downloading the ShopBot controller software I was able to create a working G-code post processor.

At this time I have tested drilling, cutting lines and arcs. 2D cutting programs that are being run on a machine without a tool changer.


picture hosting



Here is a sample G-code program:


[CODE]G90 G80 G40 G20 G17
T1
M03
G00 X4.9962 Y6.5027
G00 Z1.
G01 Z-0.1063 F20.
G00 Z1.
G00 X8.43
G01 Z-0.1063
G00 Z1.
G00 X6.6053
G00 Y5.3842
G00 Z0.6
G01 Z0.25 F20.
G01 X6.5053 F40.
G03 X6.6053 Y5.2842 I0.1 J0.
G01 X7.4427
G01 X7.1772 Y8.1915
G01 X5.8128 Y5.2842
G01 X6.6053
G01 X6.7053
G03 X6.8053 Y5.3842 I0. J0.1
G01 X6.7053
G00 Z1.
G00 X3.3424
G00 Y6.2848
G00 Z0.6
G01 Z0.25 F20.
G01 X3.2937 Y6.1974 F40.
G03 X3.4297 Y6.2361 I0.0487 J0.0873
G01 X6.0581 Y10.9508
G01 X9.1303
G01 X10.687 Y1.43
G01 X7.7983
G01 X7.6473 Y3.0967
G01 X4.766
G01 X3.9691 Y1.43
G01 X0.7504
G01 X3.4297 Y6.2361
G01 X3.4784 Y6.3234
G03 X3.4397 Y6.4594 I-0.0873 J0.0487
G01 X3.3911 Y6.3721
G00 Z1.

M30
%
[/CODE]



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If you need a copy of this post processor please feel free to PM me.

[aldepoalo]

http://youtu.be/6RFeoplaLMM

[pat_wardell]

Hi Al, I have a an old shopbot PRT. I only work in 3D, so always with a 4th axis. I upgraded from v24 pro to v25 and now on build 769. Need to mill P-51 prop blade so I used 4-Ax-Rotary. Did rough using index at 0deg and 180deg. Sims ran fine, did my typical post. The Index's worked fine but I am not getting any commands in the post for the 4th axis with the 4-Ax-Rotary. Please help, this has been long awaited, and v25 has been turning me around on past BC issues. v25 has so much more to offer and much easier to use.

[aldepoalo]

pat_wardell,

I would like to help you. The first thing you should do is put in an a post request though our website. Please use the following link.

http://www.bobcad.com/downloads/post-request

With that said can you do the following for me.

1) Can you post in this thread a short sample program that runs correctly on your machine using the 4th axis?

2) Can you post in this thread a short sample of the code BobCAD is producing now?

[pat_wardell]

Hi Al, I am going to hold off on submitting a request with BC. I decided to edit the Post Processor myself. I reviewed the BC_4x_Mill PP and the newer shopbot BC ShopBot_sbp_rev15 PP. I determined where the changes needed to be made and it seems to post ok. I was also able to fix the Z axis post speed that never worked before. Sub routines I had working in older version of BC still doesn't work but it is not important. I also added a jump routine that allows me to simply edit the the posted code and simply insert the jump to location. This is nice when was a problem with the machine and I want to restart the code at a certain point.

I will test on the machine tomorrow and verify it works for me. I can send you the PP if you are interested once I verify it works.

If anyone else is interested in the PP I can post it to this thread if you like once it is verified.

[aldepoalo]

Yes I would be interested in the post. Can you PM me your contact information?