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Author Topic: BobCAM generating unusable g code...  (Read 11378 times)

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Offline Chip

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Re: BobCAM generating unusable g code...
« Reply #10 on: August 24, 2008, 05:48:05 PM »
Hi, CHUFF

None of this Stuff is Plug and Play, Whether you've spent 500.00 or 500,000.00.

There is a File Save as "DXF" in BobCad, To start with.
 
You've got a total of 9 post now, There isn't enough rope in the World at this Rate.

Take a break, Calm down, Re-Group a little and we'll try to help.

Thanks, Chip

Offline Chip

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Re: BobCAM generating unusable g code...
« Reply #11 on: August 24, 2008, 06:38:02 PM »
Hi, CHUFF

Hears a BobCad, Dxf, G-code file and LazyCam G-code file to test.

Chip

Offline CHUFF

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Re: BobCAM generating unusable g code...
« Reply #12 on: August 24, 2008, 06:49:44 PM »
Thank you for your efforts... but both those are wrong. See what I mean?

I just need a circle, cut out of 1/2 inch plywood, that is 22.5 inches in diameter, with a 1/4 inch hole in the center.

This SEEMS like a simple thing. Yet, NO cam software can do it.

I suppose what is really bothering me about all this is that it seems that EVERYONE has gotten this stuff to work BUT me. I'm doing everything people tell me, and it doesn't work. Maybe I should just give this up.

Offline Hood

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Re: BobCAM generating unusable g code...
« Reply #13 on: August 24, 2008, 06:55:52 PM »
Use the circle wizard in Mach, edit the code and save as another file name then go back in and do your other circle and then edit and copy the code, open your first one you saved and paste the code in remembering to remove the M30 in the middle ;)
Hood

Offline ger21

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Re: BobCAM generating unusable g code...
« Reply #14 on: August 24, 2008, 07:09:07 PM »
This is with a 1/4" bit


M3
G0 Z0.1250
G0 X11.7500 Y11.7500 Z0.1250
F50
G83 X11.7500 Y11.7500 Z-0.4950 R0.0313 Q0.2475
G0 X11.7500 Y11.7500 Z0.1250
G0 X11.7500 Y22.8750 Z0.1250
G1 X11.7500 Y22.8750 Z0.0000 F50
G3 X11.7500 Y22.8750 Z-0.2475 I0.0000 J-11.1250 F150
G3 X11.7500 Y22.8750 Z-0.4950 I0.0000 J-11.1250
G3 X11.7500 Y22.8750 Z-0.4950 I0.0000 J-11.1250
G0 X11.7500 Y22.8750 Z0.1250
G0 X0 Y0
M5
M30
« Last Edit: August 24, 2008, 07:16:39 PM by ger21 »
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline CHUFF

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Re: BobCAM generating unusable g code...
« Reply #15 on: August 24, 2008, 09:44:05 PM »
Thank you for the code, but that's not the point. I'm using this simple project in an attempt to understand the procedure from concept to cut, ya know? So far, unless I can read and type raw gcode, Mach 3 doesn't work.

CAM programs seem to be unreliable as well, and I'm running out of options. Sure, for cutting simple shapes such as a circle, or a designing a caster mounting plate, I could likely type raw gcode as it doesn't look THAT complicated... but what about more complex shapes? 3D shapes that require specific points and chamfers? The ideal solution is a CAM program... but I can't seem to make any of them work, and I'm unwilling to continue purchasing one application after another trying to find ONE that works with Mach 3.

I'm rapidly approaching offering what I've built for sale in an attempt to recover SOME of the money I wasted with this silly project.

Offline Chaoticone

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Re: BobCAM generating unusable g code...
« Reply #16 on: August 24, 2008, 10:27:39 PM »
Well Chuff, the problem doesn't seem to be the cam programs you have tried or Mach 3. Thousands of other users are doing it. There is a learning curve that comes with both. If your not willing to invest the time it will take for you to learn them (each has their own pace they learn at) then maybe subing out your machine work to those that have will be a good option for ya. Lots of good people here to try to help you see the light but no one can do it for you. One thing is for sure though. If your gonna be here, the attitude has to go.  ;)

Brett
;D If you could see the things I have in my head, you would be laughing too. ;D

My guard dog is not what you need to worry about!

Offline Chip

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Re: BobCAM generating unusable g code...
« Reply #17 on: August 24, 2008, 10:38:25 PM »
Hi, CHUFF

My last post wasn't intended to be anything specfic, Just a couple of examples for you.

Hears a 22.5 cir use a 1/4 inch cutter the depth is set to Z-0.6, You may want to change the F10 speed's (cut) to a higher speed.

Jog to the center of your cir, Zero axises to just above work surface, Ctr. hole will be cut first.

This is hand written G-code, Should do what you wanted.

Hears a LazyCam, G-code file also.

Learning, Mach, Cad, Cam and G-code, Takes Some Time.

Hope this Helps, Chip

Offline CHUFF

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Re: BobCAM generating unusable g code...
« Reply #18 on: August 24, 2008, 11:47:36 PM »
Chip

Again... thanks for the help, but I need to figure out how to make this work for myself. I can't very well come to this or any other board with a jpeg of what I want and expect someone to write gcode for me. I need to understand what is going wrong.

Offline Sam

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Re: BobCAM generating unusable g code...
« Reply #19 on: August 25, 2008, 12:47:30 AM »
Sounds to me like an option you should consider would be some one-on-one personal training. There is only so much a forum can do for you. Lots of us here do this sort of thing for a living, so we have YEARS invested in this craft. You will have to excuse us if we fail to meet your "instant" results for gratification. This is definitely not a "paint by numbers" sort of thing. Walk a mile in our shoes and pay your dues. Anger towards us is definitely uncalled for.
"CONFIDENCE: it's the feeling you experience before you fully understand the situation."