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Problems printing small objects

Posted by kirya malik 
Problems printing small objects
November 29, 2012 01:36PM
Hi, I have problems with printing small objects.
I can hear strange noise while printing paths containing lots of small curvy details (example)
When I print the same thing slower (10mm/s) the noise get lost and the movement is smooth, but it really extends the time of print.
I don't know what is the noise caused by.
Please, does anybody know if it is normal or not? Eventually, how to get rid of that noise? And could it destroy the hardware?

The video (especially from 0:28)

I have Orca 0.42

Pronterface log:
Printer is now online.
echo:Marlin: 1.0.0 RC2
echo: Last Updated: 2012-02-25 | Author: erik
echo: Free Memory: 1504 PlannerBufferBytes: 1232
echo:Using Default settings:
echo: Steps per unit:
echo: M92 X32.05 Y32.05 Z960.00 E136.50
echo:Maximum feedrates (mm/s):
echo: M203 X500.00 Y500.00 Z5.00 E45.00
echo:Maximum Acceleration (mm/s2):
echo: M201 X9000 Y9000 Z100 E10000
echo:Acceleration: S=acceleration, T=retract acceleration
echo: M204 S3000.00 T3000.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s), Z=maximum Z jerk (mm/s)
echo: M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
echo: PID settings:
echo: M301 P22.20 I1.08 D114.00

com port speed: 250 000

Slic3r (speed settings):
perimeters: 30
small perimeters: 30
external perimeters: 100%
infill: 60
solid infill: 60
top solid infill: 50
bridges: 60
travel: 130
first layer speed: 30%

Thanks, Kirya

Edited 1 time(s). Last edit at 11/29/2012 01:45PM by kirya malik.
Re: Problems printing small objects
November 29, 2012 04:39PM
What do you have your printer setting on? Sounds like you are getting some vibration noise amplification.

I have my printer setting on rubber feet, reduces noise greatly, but my motors are not as loud at any speed.

Your acceleration values are very high in comparison to mine.

For a feedrate of 200mm/s I have an acceleration of 100mm/s.

Try a max. acceleration of 250mm/s2 for your 500mm/s feedrate and see if that helps the noise. May be able to use acceleration of 500mm/s2. Pretty sure acceleration should not be higher than max. feedrate.

My best suggestion.
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