Problem Homing DDCSV3.1 - DDCSV3.1 Standalone CNC Motion Controller - Digital Dream Technology support
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Problem Homing DDCSV3.1

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Landlord
Posted at 2021-9-1 19:40:29 | All floors
so homing z at top position, ie positive end is possible?
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Sofa
Posted at 2021-9-1 19:56:38 | All floors
is your problem solved?
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Bench
Posted at 2021-9-2 19:30:30 | All floors
do you mean that the only way to make ddcnc work, is to set z zero/ 0 at the top,
or do you mean that is how you want it to be?

z "0" is normaly at the table top surface;
positive coords is away from table,
and negative coords toward the table, i.e. tool tip touching table surface = z0

but since its risky/impractical to home z at the negative end, its better to home at the top max,
and tell the system to set(offset) this position as the distance between the tool tip(spindle nose)
and table surface, so that the z machine coord displays "200" mm or whatever your true distance is,

this is how i set up my milling machine, but it was only possible after i disabled the clear/backing-off homing switch function
(because it backs off the wrong direction and crash into the hard limit)

i also have the set z homing direction "negative" to make travel/seek home in positive/up direction

so there seem to be a some sort of bug here..

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