mesh results inconsistent with leveling

[jltx]

@gloomyandy @fcwilt I’m still not clear on the purpose of the Z=0. Maybe the confusion is I have a Voron with a mechanical Z end stop that is used to set the tool Z relative to bed. The inductive probe is only used to level the bed and probe a mesh for bed correction. All of that is relative. Do I need this extra step of Z=0? What exact command would that be? Since I’m not currently doing that, what bad things might happen? I appreciate the help.

[zapta]

This post is deleted!

[Phaedrux]

@jltx said in mesh results inconsistent with leveling:

Maybe the confusion is I have a Voron with a mechanical Z end stop that is used to set the tool Z relative to bed.

As long as that offset is correct such that when the nozzle is moved to Z0 the nozzle is just touching the bed you're ok. The problem is that correcting the gantry leveling will likely alter that offset. I don't really understand why the voron does it that way. Regardless, you can do both. The mechanical switch can be used like a fast homing switch for Z, then the probe can be used to locate the Z0 point of the bed and do the leveling.

[zapta]

@jltx said in mesh results inconsistent with leveling:

Maybe the confusion is I have a Voron with a mechanical Z end stop that is used to set the tool Z relative to bed.

One option you have is to use the Clicky mod instead of the probe and Z switch. IMO it makes things simple and straight forward.

The issue with with magnetic probe is that it doesn't measure well absolute height, hence the extra Z switch that some Vorons use. The Clicky solves this problem.

[jltx]

@phaedrux i believe they use a hybrid setup because the inductive probes are very sensitive to temperature. If I were to ignore the endstop and try to just use the probe I would have no way to actually set Z=0, at least no confidence that I was anywhere close at a given temp. The endstop can move a little too with thermal expansion but it seems pretty small by comparison.

[jltx]

@zapta I looked at klicky but I don’t think I have enough room. Unless the magnetic sled can discriminate only a few mm for pick up I will lose part of my rear bed trying to avoid accidental mounting.

[fcwilt]

@jltx said in mesh results inconsistent with leveling:

@zapta I looked at klicky but I don’t think I have enough room. Unless the magnetic sled can discriminate only a few mm for pick up I will lose part of my rear bed trying to avoid accidental mounting.

Hi,

Here is a quick-and-dirty video of how I fit a Euclid probe to my FT5. It's a bit hard to see but there was limited space to place the camera.

FT5 with Euclid Probe

I added one of these to allow moving the dock into position as needed:

Frederick

[Phaedrux]

@jltx said in mesh results inconsistent with leveling:

@phaedrux i believe they use a hybrid setup because the inductive probes are very sensitive to temperature. If I were to ignore the endstop and try to just use the probe I would have no way to actually set Z=0, at least no confidence that I was anywhere close at a given temp. The endstop can move a little too with thermal expansion but it seems pretty small by comparison.

Does that mean the probing is done cold?

[jltx]

@phaedrux said in mesh results inconsistent with leveling:

Does that mean the probing is done cold?

No, you can probe whenever you want. I really don't know why that designed it that way.

[jltx]

@fcwilt
That's clever. I'll have a think about that.