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Author Topic: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm  (Read 16793 times)

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Offline Dan13

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Re: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm
« Reply #10 on: September 14, 2009, 09:10:54 AM »
Now that looks much better :) . Would love to see it cutting that mustang at this speed.

Thanks for showing.

Daniel

vmax549

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Re: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm
« Reply #11 on: September 14, 2009, 06:13:33 PM »
Straight line speed is LOOKING good BUT that is NOT micro segmented code. (;-) Have it tested with segmented lines of .001-.002" for a total of 10 in and see how it goes(;-)

OR just rerun the Mustang as we already have a reference to that file.

3d micro segmented code is TUFF to do right.

(;-) TP
« Last Edit: September 14, 2009, 06:21:18 PM by vmax549 »
Re: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm
« Reply #12 on: September 14, 2009, 07:32:50 PM »
Terry,

Thanks for the input. 

FWIW The mustang is not "micro segmented" as you would define it.  As I pointed out previously, the mustang is made up ENTIRELY of .01" moves -it is pure point cloud data (XYZ pts) from a digitize run we made on a .01" grid.  We're now trying to figure out why Mach is artificially capping the velocities it outputs for vectors...  even on a straight line, single axis move of 8" made up of .01 increments...

Any thoughts Brian?
 

vmax549

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Re: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm
« Reply #13 on: September 14, 2009, 08:35:08 PM »
yep that is basic segmented code that is generated for 3d profiles by most 3d cams, it is small micro moves. The segment lengths are normal dependant on the complexity of the surface. Can be anywhere from .0001 and up.

I think you will find the velocities are capped because of the time constaint of the motor tuning. The motor has to accel up to speed then deexcellerate for each move. There is Just not enought time to get to full speed given the accelleration values most use. If you noticed in your video the moves start with a slow accelleration up to speed then level off then deexcellerate to a stop then reverse. To get faster you are going to have to UP the excelleration rates of the motors. IF the machine can stand it. It is really hard on screws when it gets TOO fast for the design.

Micro code makes it even worse(;-)

Just some thoughts, (;-) TP

Offline josh

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Re: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm
« Reply #14 on: December 22, 2009, 01:55:32 AM »
I would like my mill to move that fast
can you guys tell how I can go about donin that

Offline drew

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Re: New Video of Mach/Ajax Cnc system cutting complex surface @ 250"ipm
« Reply #15 on: February 26, 2010, 01:33:36 PM »
FYI All our vectors are brought down as .001 sec (1 milli sec) vectors

Is this how position data is sent over ethernet?

I have a job to retro fit a Acramatic 850 that has a sumodrive.
This looks like a nice one stop fix for motion to the analog drive and i/o.

Thanks Drew
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