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Topic starter
Hello,
I'm a noob in CNC, and I'm starting with a Stepcraft-2 420 with UCCNC.
My problem is about the size of the units, if I move in uccnc 10 units, my stepcraft moves about 15 mm, of course te limits of the machine are wrong.
which is not the correct way to fix this or what the problem is, I have done the calibration of the axes and changed the "steps per unit" from 200 to 133.333 and it seems it's ok, but i read the correct value is 200, I think this is not the solution and that there something wrong
someone could know whats is going
Posted : 28/05/2016 10:13 pm
Hello Didac,
your problem is probably the configuration of the parameter 'Distance/rotation'. Old Stepcrafts had 2 mm/rotation, the new Stepcraft-2 needs 3 mm/rotation. This is exact the factor 1.5, like the difference of your sizes.
Greetings
Thomas
SC 2/420 - Parallel, HF-500, LinuxCNC, Estlcam
Posted : 29/05/2016 1:14 pm
Topic starter
Thank you very much, but i can't find this parameter in the UCCNC configuration, where is that parameter?
Posted : 29/05/2016 2:23 pm
Sorry, I don't know UCCNC, I work with LinucCNC. But all programs have to configure this value, because it is different by each CNC machine. In LinuxCNC, the parameter is called 'Leadscrew pitch'. It exists for X,Y and Z axis.
EDIT: If you don't have this parameter, 'steps per unit' is the only way, to correct the difference. May be, that this is the right way in UCCNC.
SC 2/420 - Parallel, HF-500, LinuxCNC, Estlcam
Posted : 29/05/2016 2:42 pm
Maybe you are using the wrong or old Default
UCCNC profile. Here is mine: Profile
Viele Grüße
Hartmut
V2/420 China 800W wassergekühlt
UCCNC & ARDUINO ESTLCAM Controller
ESTLCAM & QCAD
-----------------------------------
DK5LH/G11
Posted : 29/05/2016 2:51 pm
Topic starter
Thank you very much to you, Voltatus and DocBrown.
both are right, i was working with the profile for the stepcraft1, now with the new profile its all right.
appreciate how efficient this forum and its users, very patient with whom we are beginners.
Posted : 29/05/2016 3:18 pm
