Rotary Plasma
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- Posts: 6
- Joined: Tue May 02, 2017 6:33 pm
Rotary Plasma
Hi Les
Having a small problem with my rotary axis!
I've got a 1300mmx3000mm Plasma table with X and B slaved,Y,Z axis working 100%!Recently I've added a Rotary setup on A axis, but when rotarymach is cutting round tubing, X axis is working 100%, but A axis(Rotary) speed is maby a 10th of the speed I think it should be, just take in account I'm still a rookie!Speed of X and A axis not in sync! But when is manually move A axis with keyboard, its runing 100%!Its allmost as if it is moving back and forth, but still moving forward, this happens only when running a tap file!
Any Help?
Tx
Thys Pretorius
Having a small problem with my rotary axis!
I've got a 1300mmx3000mm Plasma table with X and B slaved,Y,Z axis working 100%!Recently I've added a Rotary setup on A axis, but when rotarymach is cutting round tubing, X axis is working 100%, but A axis(Rotary) speed is maby a 10th of the speed I think it should be, just take in account I'm still a rookie!Speed of X and A axis not in sync! But when is manually move A axis with keyboard, its runing 100%!Its allmost as if it is moving back and forth, but still moving forward, this happens only when running a tap file!
Any Help?
Tx
Thys Pretorius
- Les Newell
- Site Admin
- Posts: 3675
- Joined: Thu May 11, 2006 8:12 pm
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- Posts: 6
- Joined: Tue May 02, 2017 6:33 pm
Rotary Plasma
Hi Les
Using PlasmaRotary Mach3, I'll attach a machine File of how it is setup!
And attached is the Job(tap file)! Sorry can only add 1 attachment! Please let
know it you want the machine file too!
Tx for the help!
Thys
Using PlasmaRotary Mach3, I'll attach a machine File of how it is setup!
And attached is the Job(tap file)! Sorry can only add 1 attachment! Please let
know it you want the machine file too!
Tx for the help!
Thys
- Attachments
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- 100x4.5Waterpyp 250L10H 1.tap
- (130.48 KiB) Downloaded 230 times
- Les Newell
- Site Admin
- Posts: 3675
- Joined: Thu May 11, 2006 8:12 pm
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- Posts: 6
- Joined: Tue May 02, 2017 6:33 pm
Rotary Plasma
HI
Ok no problem!One other thing I want to know, the calibration of the rotary chuck, different sizes on tubes have different flat values in mm, on what value do I calibrate, on every job to the size, or the chucks OD in flat value?
I don't know if you will see this in the file, but when I zero All axis in rotary mode on top of tubing, the Z axis moves up a lot when starting, as if it works from the center of the tubing?Is this correct, or where can I adjust it?
Tx
Ok no problem!One other thing I want to know, the calibration of the rotary chuck, different sizes on tubes have different flat values in mm, on what value do I calibrate, on every job to the size, or the chucks OD in flat value?
I don't know if you will see this in the file, but when I zero All axis in rotary mode on top of tubing, the Z axis moves up a lot when starting, as if it works from the center of the tubing?Is this correct, or where can I adjust it?
Tx
- Attachments
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- 100x4.5Waterpyp 250L10H.job
- (43.85 KiB) Downloaded 157 times
- Les Newell
- Site Admin
- Posts: 3675
- Joined: Thu May 11, 2006 8:12 pm
I think this is a configuration issue. In Mach the rotary axis should be defined as linear. Mach's rotary compensation does not mix well with the rotary code generated by SheetCam.
The A axis is output in degrees so you need to set up your motor scaling so one full revolution of the chuck is 360 units. To check enter this code in the MDI box:
G0A0
Now enter
G0A360
If you have it configured correctly the chuck should rotate exactly one full revolution.
The A axis is output in degrees so you need to set up your motor scaling so one full revolution of the chuck is 360 units. To check enter this code in the MDI box:
G0A0
Now enter
G0A360
If you have it configured correctly the chuck should rotate exactly one full revolution.
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- Posts: 6
- Joined: Tue May 02, 2017 6:33 pm
Rotary Plasma
Hi Les
Just want to make sure how to set mach as rotary axis, (linear) config>general config>angular properties> Uncheck box(A-Axis is angular), this make it linear?Is this the only place to set as linear?I've done this and nothing has changed!
I've set the steps of stepper for one revolution, when A axis is 0 and g0a360 is entered, chuck does 1 revolution(360 Deg)!That works 100%
Tx
Just want to make sure how to set mach as rotary axis, (linear) config>general config>angular properties> Uncheck box(A-Axis is angular), this make it linear?Is this the only place to set as linear?I've done this and nothing has changed!
I've set the steps of stepper for one revolution, when A axis is 0 and g0a360 is entered, chuck does 1 revolution(360 Deg)!That works 100%
Tx
- Les Newell
- Site Admin
- Posts: 3675
- Joined: Thu May 11, 2006 8:12 pm
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- Posts: 6
- Joined: Tue May 02, 2017 6:33 pm
Rotary Plasma
Hi Les
The vibration on the stepper has not changed, I've recently learned that when stepper does back and forth movement but slowly going forward it is called Vibration! Any thoughts why it is still doing this?
Can it be the motor tuning and setup?
My A axis(Rotary Axis):
Step per=20.4 ???????
Velocity 13000 mm per min
Acceleration 400 mm/sec
I'm not sure, isn't the problem at the steps?The higher the steps, the beter it works?
Because my X,Y=85 steps, Z=406 steps, and works perfect!
Not sure.
Tx
The vibration on the stepper has not changed, I've recently learned that when stepper does back and forth movement but slowly going forward it is called Vibration! Any thoughts why it is still doing this?
Can it be the motor tuning and setup?
My A axis(Rotary Axis):
Step per=20.4 ???????
Velocity 13000 mm per min
Acceleration 400 mm/sec
I'm not sure, isn't the problem at the steps?The higher the steps, the beter it works?
Because my X,Y=85 steps, Z=406 steps, and works perfect!
Not sure.
Tx
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- Posts: 6
- Joined: Tue May 02, 2017 6:33 pm
Rotary Plasma
Hi Everyone
Can anyone help me, struggling with my Rotary plasma!
Tx
Thys
Can anyone help me, struggling with my Rotary plasma!
Tx
Thys
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- Posts: 1
- Joined: Wed Sep 20, 2017 8:05 pm
Did you get your rotary to work? I am having the same or similar problem. I am using the PlasmaRotary Mach3 swapped axes post Mine will go slow only on straight cut off lines. In the feedrate dro it says 12.73 ipm but the actual rate while moving is 3 to 4 ipm. I played with the motor tuning and got it to 9 ipm if I turned the acceleration way up but then I doesn't move well on rapid or jog. I also noticed the g code is a couple hundred lines for one cut and if I use the post that I use for flat plate its only about 10 lines.