Real acceleration during jerk February 22, 2019 07:09AM |
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Re: Real acceleration during jerk February 22, 2019 10:27AM |
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Re: Real acceleration during jerk February 26, 2019 07:40AM |
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Re: Real acceleration during jerk February 26, 2019 11:27AM |
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Quote
ArtemKuchin
with 20t pulley 1 full step is 0.2mm, 2 full steps is 0.4mm
If jerk take place in 2 full steps and it would be impossible to print details less than 0.4mm
Which is clearly not the case, i can show you test print with details as small as 0.025 mm, crazy huh? (need 16t pulley though and good geared extruder).
Microstepping does rise resolution and microsteps do move things around.
For me "jerk has to take place in is 2 physical steps, not microsteps" does not make much sens.
JERK is just any movement, actually there is nothing special about jerk, it just may have to be too fast to reach the speed. But then again, no speed
is reached momentarily, even 0.1mm/sec rises from 0 for some time.
Friction is not that hard actually, because i don't need exact data, i just need first order range estimation, that's can be done pretty easy using engineering tables for friction coefficients.
Re: Real acceleration during jerk February 27, 2019 06:01AM |
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Re: Real acceleration during jerk February 27, 2019 07:56AM |
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Re: Real acceleration during jerk February 27, 2019 08:17AM |
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