Z offset on Inductive sensors
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@tinchus said in Z offset on Inductive sensors:
So Z motors have enough power to move that mass.BUT, if something goes wrong, the also have the power to destroy my hotenfd and bend the bed
Wow.
What steppers are you using?
Thanks.
Frederick
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@phaedrux This is just from the oven: heighmap with print chamber at 120 degrees celsius:
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@tinchus said in Z offset on Inductive sensors:
This is just from the oven: heighmap with print chamber at 120 degrees celsius:
That is not good.
But it does make me feel better about mine.
At what XY point are you setting the Z=0 datum with G30 prior to creating the heightmap?
Thanks.
Frederick
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That's quite a lot of tilt. On the bright side it looks like the surface itself is mostly flat. Is there anyway you can square the bed and gantry a bit better?
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@phaedrux What you are looking is the normal deformation an aluinium bed will have under 120 degrees celsius + yes there is some tilt to the front.
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@tinchus said in Z offset on Inductive sensors:
@phaedrux What you are looking is the normal deformation an aluinium bed will have under 120 degrees celsius + yes there is some tilt to the front.
If that is "normal" for your setup I think you need to change the design - that is a lot of tilt - you are talking about 7 to 14 layers of compensation required.
And the nozzle-to-bed relationship will likely have a negative effect on print quality.
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@fcwilt You are loosing the focus: compensation is working OK. The problem is the Z offset reported, is not realistic.
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Try this, when measuring your G30 S-1 after touching down your nozzle to the bed, job the probe so that it's over that same point. If there is enough tilt there will be a difference in height between where the nozzle is and the probe is. Just like the triangle formed by the ski jumper leaving the ramp.
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@tinchus said in Z offset on Inductive sensors:
@fcwilt You are loosing the focus: compensation is working OK. The problem is the Z offset reported, is not realistic.
What do you mean by realistic?
It's accurate so isn't that "real"?
Frederick
