OPS doesnt work?
Posted by nikbjo
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OPS doesnt work? February 05, 2013 01:54PM |
Registered: 11 years ago Posts: 29 |
I have trouble getting OPS to work
I have compiled firmware with #define USE_OPS 1
and has eeprom settings as:
OPS operation mode: 2
OPS move after x% retract [%]: 0
OPS min. distance for fil. retraction [mm]: 0.80
OPS retraction length [mm]: 5.00
OPS retraction backlash [mm]: 0.00
But it does never retract anything during moves. Any suggestions?
I have compiled firmware with #define USE_OPS 1
and has eeprom settings as:
OPS operation mode: 2
OPS move after x% retract [%]: 0
OPS min. distance for fil. retraction [mm]: 0.80
OPS retraction length [mm]: 5.00
OPS retraction backlash [mm]: 0.00
But it does never retract anything during moves. Any suggestions?
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Re: OPS doesnt work? February 06, 2013 10:23AM |
Registered: 12 years ago Posts: 2,705 |
OPS move after x% retract [%]: 0
never tested this with 0. You always need some retraction to start or the filament will start stringing. So perhaps 20% or so. Maybe that is the reason. Also 5mm retraction is very much. Good hotends need only 1mm and 2-3 should nearly always suffice.
One other point with ops is that the extruder starts with the set max speed - no acceleration. If you hear the extruder loosing steps during retraction lower max speed until you don't hear this any more.
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never tested this with 0. You always need some retraction to start or the filament will start stringing. So perhaps 20% or so. Maybe that is the reason. Also 5mm retraction is very much. Good hotends need only 1mm and 2-3 should nearly always suffice.
One other point with ops is that the extruder starts with the set max speed - no acceleration. If you hear the extruder loosing steps during retraction lower max speed until you don't hear this any more.
Repetier-Software - the home of Repetier-Host (Windows, Linux and Mac OS X) and Repetier-Firmware.
Repetier-Server - the solution to control your printer from everywhere.
Visit us on Facebook and Twitter!
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Re: OPS doesnt work? February 08, 2013 02:01PM |
Registered: 11 years ago Posts: 29 |
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Re: OPS doesnt work? February 08, 2013 02:10PM |
Registered: 12 years ago Posts: 2,705 |
Good to know. I will look what is the reason and see if i can make it run with 0 or add a condition to prevent this problem.
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Visit us on Facebook and Twitter!
Repetier-Software - the home of Repetier-Host (Windows, Linux and Mac OS X) and Repetier-Firmware.
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