Mesa 7I76E + HSS60 Driver parameters ------ losing stepps

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11 Feb 2019 17:26 - 11 Feb 2019 23:11 #126207 by MarcoGaspar
Hello,

Does any one can tell me the parameters for Nema24 3N.m Closed Loop Stepper Servo Motor 88mm + HSS60

I change my old stepper motors and drivers to Nema24 3N.m Closed Loop Stepper Servo Motor 88mm + HSS60 and now when i move forward and backward any value below 0.05 the machine axis starts to increment almost 0.01 at each step forward and backward.

I try all the resolution of the stepper driver without luck.


OLD ____> New
2005 Ballscrew _____> 2010 Ballscrew
425 oz stepper _____> Nema24 3N.m Closed Loop Stepper Servo Motor 88mm
Driver DM860a _____> Driver HSS60



Best Regards,
Marco Gaspar
Last edit: 11 Feb 2019 23:11 by MarcoGaspar.

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12 Feb 2019 07:53 #126251 by pl7i92
The HSS60
require a 2500ns step rate
you shoudt setup for
2500
2500
8000
12000

and give your mashine a best off timingbelt system for 2005 it is 20/25 Teeth so 1,25
for the 2010 it is 2.5 to get 0,01 accuracy at max speed
but you may look for a better one so stay with 20/25 at 400steps halfstepping for best speed and 0,005mm acuracy per step

As lower the microstepping as better the mashine performence
as special on NOT Direct Motor Drive SAYing timingbelt Smooth start
I got a mashine running 12m/min at this drivers 2Nm Stepepr Hybrid No steploos in 4hr Shift at 2800mm(min
Sculping

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12 Feb 2019 11:39 - 12 Feb 2019 11:46 #126260 by MarcoGaspar

The HSS60
require a 2500ns step rate
you shoudt setup for
2500
2500
8000
12000

and give your mashine a best off timingbelt system for 2005 it is 20/25 Teeth so 1,25
for the 2010 it is 2.5 to get 0,01 accuracy at max speed
but you may look for a better one so stay with 20/25 at 400steps halfstepping for best speed and 0,005mm acuracy per step

As lower the microstepping as better the mashine performence
as special on NOT Direct Motor Drive SAYing timingbelt Smooth start
I got a mashine running 12m/min at this drivers 2Nm Stepepr Hybrid No steploos in 4hr Shift at 2800mm(min
Sculping


Hello,

Do you have mesa 7i76e?

How do you wired your driver to mesa card?

I i have my hal file with hm2_7i76e.0.stepgen.00.step_type 0 the motor doesn't move if i put hm2_7i76e.0.stepgen.00.step_type 2 it moves but i have this problem with steps forward and backward.

The problem is the driver.... the motor... the 7i76e or the ballscrew?


Can you share your ini and hal file?
Last edit: 12 Feb 2019 11:46 by MarcoGaspar.

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12 Feb 2019 15:13 #126269 by PCW
If it moves with type 2 (quadrature) but not type 0 (Step/Dir), its likely your step
times are too short or you have the step polarity wrong.

As a first try, I would select mode 0, double your step times and try again...

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12 Feb 2019 15:48 #126275 by MarcoGaspar

If it moves with type 2 (quadrature) but not type 0 (Step/Dir), its likely your step
times are too short or you have the step polarity wrong.

As a first try, I would select mode 0, double your step times and try again...


If i chose mode 0 the motor stand still

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12 Feb 2019 15:56 #126277 by PCW
Did you double the step time?

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12 Feb 2019 16:05 #126278 by MarcoGaspar

Did you double the step time?


Not yet.....

This times are ok?
2500
2500
8000
12000

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12 Feb 2019 16:07 #126280 by PCW
Probably not, I would double the step time and step space and try again

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12 Feb 2019 16:32 #126284 by MarcoGaspar

Probably not, I would double the step time and step space and try again


And 7I76e wired to the drive with dir+,dir-,puls+,puls- ?

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12 Feb 2019 17:30 #126287 by PCW
Yes that should work

I think a very important thing that's often missed here is that the drive timing numbers are _minimums_, that is, they are on the edge of not working at all, because of this you should never chose drive minimums as a starting point.
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