Z axis is cutting to deep

X-Carve
1

tblsht eagle act2
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tblsht eagle act1
tblsht eagle act1280×578 35.2 KB
tblsht eagle

Okay, so ive read a bunch of threads so far and havnt been able to fix my issue. Ive uploaded a few pictures. One in easel, if you notice the knife handle it clearly shows a significant difference in thickness between was should be carved and what should stay at surface level. Now if you notice the actual carve, there is a HUGE discrepancy. Ive checked the z axis steps via measuring the difference between the top plate and the spindle plate. then i told it to go down one inch. and it did exactly that. Now there is a bit of a wiggle in my pully belt, but should that even be an issue if the steps are coming out correct?

Other things ive noticed: I am requesting .04in total depth in easel, but I am actually getting .09in (again, very significant). My roughing pass was a 1/8in straight bit, my detailed pass was a 90 degree vbit. both set at a total .04in depth.

PAAALEASSEEE HALPP

2

You could always put a couple business cards under the Z probe when you’re setting the Z height. If the V bit has a flat tip that can throw it off some
Russell

Flat tip 90 degree bit
Flat tip 90 degree bit1080×900 43.7 KB

2 Likes
3

Thanks, I may give this a try. Its just annoying to have to account for that much error.

4

It’s not error, it’s the geometry of the bit. Some will specify the diameter of the flat tip. If you know the width of the tip, you can offset by a calculated amount. You can also get bits that come closer to a true point.

5

20201019_150302
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not a flat tip.

6

Do a test piece where you incrementally, with intent, set Z-zero higher and higher, causing a Z-offset.
Which offset give you the crispest result?

Use that offset.

7

How are you setting your Z zero?

8

I use the z probe

9

If there’s no discernable flat (check from the other angle), you might just try setting zero by eye or using a piece of paper.

10

I’ll give manual zeroing a try for sure