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Ultimaker - Marlin acceleration tests

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Uploaded on Aug 24, 2011

Test Gcode provided by Lampmaker. Find the code attached in the bottom. Notice the smooth acceleration. At some points something goes wrong. Sounds like missed steps - not sure what really happens.

### Code ###

M92 E608
G92 E0
G21 (metric)
G90 (absolute positioning)
G28 (home all axes to min endstops)
G92 X-105 Y-105 Z0.0 E0 (reset position to front/left/z=0)
G1 Z10

M201 X500 Y500 (acceleration at 500 mm/s2)
G1 X90.0 Y90 F16000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F20000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F25000 (deceleration is irregular)
G1 X-90.0 Y-90
G1 X90.0 Y90 F32000 (runs at same speed as F25000)
G1 X-90.0 Y-90


M201 X2000 Y2000(acceleration at 2000 mm/s2)
G1 X90.0 Y90 F16000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F20000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F25000 (Not OK)
G1 X-90.0 Y-90
G1 X90.0 Y90 F32000 (Not OK)
G1 X-90.0 Y-90

M201 X4000 Y4000(acceleration at 4000 mm/s2)
G1 X90.0 Y90 F16000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F20000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F25000 (Not OK)
G1 X-90.0 Y-90
G1 X90.0 Y90 F32000 (Not OK)
G1 X-90.0 Y-90


M201 X4000 Y4000(acceleration at 7000 mm/s2)
G1 X90.0 Y90 F16000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F20000 (ok)
G1 X-90.0 Y-90
G1 X90.0 Y90 F25000 (Not OK)
G1 X-90.0 Y-90
G1 X90.0 Y90 F32000 (Not OK)
G1 X-90.0 Y-90

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