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#1 2017-05-30 10:08:13
- lenne0815
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- Registered: 2017-05-17
- Posts: 38
Custom Exponential Acceleration for Z Moves
I think the title says it all 
You have solved nearly every area where big gains in print speed could be achieved ( Time to display, calculators, usability )
This is the last man standing imo.
(might only be achievable with a pi daugtherboard, unsure how the arduino based controllers would react to it given that they already employ acceleration values )
Last edited by lenne0815 (2017-05-30 10:14:31)
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#2 2017-05-30 16:29:27
- Shahin
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- Registered: 2016-02-17
- Posts: 1,834
Re: Custom Exponential Acceleration for Z Moves
Good idea for direct control.
There are two ways to handle acceleration.
Realtime pulse length calculation, providing realtime formula calculation will effect performance.
Pre-calculated pulse length. Increase early delay and memory usage to handle formula.
Will try implement this.
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#3 2017-05-30 17:19:02
- lenne0815
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- Registered: 2017-05-17
- Posts: 38
Re: Custom Exponential Acceleration for Z Moves
So much thanks !
I thought about other ways of doing it "manually" but nothing came to my mind quickly 
Maybe real time is feasible as we only move a single axis between to fixed points, but precalculating while slicing could work aswell, for the calculators we would need the possibility to tie the accel "rates" to [[buildarea]].
Is there a certain daughterboard you recommend for using with pi and Nanodlp ?
Last edited by lenne0815 (2017-05-30 17:20:55)
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#4 2017-05-30 18:39:28
- Shahin
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- Registered: 2016-02-17
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Re: Custom Exponential Acceleration for Z Moves
I have not used one, maybe somebody else could offer advice.
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#5 2017-05-30 23:13:49
- lenne0815
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- Registered: 2017-05-17
- Posts: 38
Re: Custom Exponential Acceleration for Z Moves
I found this guy here: https://plus.google.com/100170060322292 … KC5ueGNPbZ that looks really promising !
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#6 2017-05-31 09:33:19
- lenne0815
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- Registered: 2017-05-17
- Posts: 38
Re: Custom Exponential Acceleration for Z Moves
For calculating Realtime maybe it lessens the burden on the pi if you break up the exponential function into maybe just 5 hard points, that should be sufficiently precise for a very smooth peel and a just as smooth stop after retract in the vat for the next layer.
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#7 2017-06-08 07:20:47
- Shahin
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- Registered: 2016-02-17
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Re: Custom Exponential Acceleration for Z Moves
Have you tried custom speed control?
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