[SOLVED] Hidden EZABL Pro adjustment screw

staticlinerich

I think I saw this on Reddit, here or somewhere. I'm doing the last few clean up items after installing a v2 petsfang cooling duct on what used used to be a Creality Ender 3v2 (now more like a TH3D v2). This question will answer the same question on two near Ender 3 printers. I installed the EZABL mount that is called for with just about any Micro Swiss DD/Ender 3 style chassis. Problem is the probe is now much higher then when I was using the Blokhead. If the sensitivity adjustment screw is hidden behind either the mount or one of the probe mount nuts. Any ideas on how to tune this dude? It was tuned for the stock mount with no issues. Thanks in advance.

staticlinerich

The installation guide states that the probe doesn't have to be exactly 2mm… So I'm going with AK-47 open bolt tolerance versus M4 bolt tolerance. In order to see the adjustment screw I have to put the bottom of the probe 5.33mm (about 3 wrench's) from the bed (while the nozzle is touching the bed). Anyone know if this is inside or outside allowable distance. I'm going to try it out and do a M48 to see what comes back. I really don't want to monkey with another probe mount. The TH3D firmware already has a petsfang mount in configuration_backend.c with offsets that match Pete's.

rynoccs

I think as long as you calibrate it to that height it should be fine? My only hesitation is I am not sure what the fault tolerance to distance is. Like how less sensitive it is the further away.

staticlinerich

Well. The M48 came back within tolerance but it work that well. What I did in the end was put the nozzle on the bed and the probe approx 2mm from the bed. Then I loosened the top retainer ring (after raising it 2mm) and held on to the top of the probe and adjusted the screw. Tightened the top ring and it works great and is the correct distance per the instructions.

HouseOfBugs

The calibration has some wiggle room. It doesn't need to be an exact science to work. Just in the 4-5 mm total distance from bed to the sensor for the optimal accuracy.

staticlinerich

Yep, it's been working great. not exactly 2mm, more like 2.5 or so but who's counting. Running straight and level.