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Messages - Chaoticone

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3551
Good job on the screen Will,
    You can do a search on cv and come up with lots of post explaining it. If your corners are rounding bad, I assum you need to be able to accel at a much higher rate. For what you are doing, you need it to be almost instant, nothing to wide open. You might want to try some test of tuning your max speed down and your accel up in motortuning to help with the rounded corners. For you set up you will need insane accel rates I think to pull it off. Great idea though and attainable I think. Might require stronger motors though. Look at teh rounded corners like this, a Corvette VS a cube van in the slolum. A big motor and good suspension, in this case a rigid frame, mounts, etc. will get around the corners much faster. I'm going to retrofit another mill soon I hope. I will be using 1KW med. inertia servos. In the Visual sizer, I should be able to achieve 750IPM rapids with accels of .05 seconds.

Brett

3552
General Mach Discussion / Re: Motor thunking?
« on: November 21, 2007, 08:10:49 AM »
Just a thought, have you tried a different keyboard? I see you have a flexi. in the pics. Think I remember seeing a while back one of those giving trouble. The only thought I have is maybe a noise problem.

Nice looking machine.

Brett

3553
General Mach Discussion / Re: Mach2 profiling
« on: November 21, 2007, 07:13:08 AM »
Can you post a picture of the cuts highliteing the problem area?

Brett

3554
General Mach Discussion / Re: Run From Here
« on: November 21, 2007, 07:09:09 AM »
You should be able to enter the line number you want to run from, hit run from here, cycle start. You should see a pop up saying mach wants to make a prep move. Accept the move, hit cycle start. It is assuming it has run the code to this point allready so if you were running a roughing pass in the code before the point you started at and you just skipped it by run from herre, that would make a mess.

Hope this helps some,
Brett

3555
Show"N"Tell ( Your Machines) / Re: CNC Cutoff saw using Mach
« on: November 21, 2007, 07:01:40 AM »
 :) Nice.

Brett

3556
General Mach Discussion / Re: Motor thunking?
« on: November 21, 2007, 06:59:37 AM »
Hey Lee,
    Are you sure it is the motor an not something else in the drive mech. like a belt, screw whip, shafts not aligned, pulley set screw loose in pulley, etc. You could disconnect the motor from the mechanical connection and test to help narrow it down.

Brett

3557
Welcome Will,
    Have you tried it in CV mode? I would think that would be the best path to try first. It doesn't sound like you have any tool load. With motors strong enough to acheive High accel. rates, I think it will do good. You could try it and see. Try it in CV mode. Don't worry about any of the settings, leave them all at the default values.

Brett

3558
General Mach Discussion / Re: Pins 2-9 as Inputs
« on: November 21, 2007, 06:37:56 AM »
You are correct, or at least very close. I don't have Mach on this machine so I can't double check it right now. My guess to the question is this. Why would you need inputs if you had no outputs?

Brett

3559
General Mach Discussion / Re: Safe and accurate homing speed
« on: November 21, 2007, 06:31:50 AM »
Quote
Are there any answer to this without testing with a dial?

That is the only way you will know for certain. Lots of variables to consider. Mach will be consistant at any speed, it is the other compomemts I worry with. Timing is everything. It isn't recommended to run your home switches through a PLC. You should run those and other time critical inputs-outputs to the PP. Not saying it won't work, just not recommended.

Brett

3560
General Mach Discussion / Re: CNC Building Blocks ?
« on: November 21, 2007, 06:25:04 AM »
My self and Hood have some of their hardware. Poppabear knows the guy personally I think.

Brett

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