XY axis moving very slow to Z home or Auto level
June 16, 2020 10:37AM
I am building my own 3d printer and am using Marlin bugfix-2.0x.
XYZ axes move ok, both ways.
XYZ axes will all home ok.

I have installed an inductive probe for ABL (auto bed leveling) - works fine.
Have had to enable "safe bed leveling" as my L probe is off the bed on one side only (X home side).

The problem is, it homes the X axis at normal speed, it homes the Y axis at normal speed, then it needs to move X before homing Z on the bed.
It does move X, except it is very slow, and it sounds like it is doing small steps with a gap between each one (not continuous).
It will eventually achieve the X position, and Z homes at the normal speed.

It does this same slow discontinuous stepping when actually doing the bed leveling routine, in between the sample points.

At all other times the motors for all axes work without problems.

All operations are done from the 3d printer control panel.

So, i am guessing there is one s/w setting causing the slow discontinuous speed for both operations ?

#define XY_PROBE_SPEED 50 - has been set.

Many thanks

Edited 1 time(s). Last edit at 06/17/2020 04:35AM by Chips.
Re: XY axis moving very slow to Z home or Auto level
June 16, 2020 10:55AM
Hi all,
I have seen the problem .........
#define XY_PROBE_SPEED 50 - value is mm/m.
Most other values seem to be steps/s or mm/s.
So my 50 value was x60 too small.
Many thanks

Edited 3 time(s). Last edit at 06/17/2020 04:36AM by Chips.
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