@dc42 Magnetic, threaded steel balls sitting in countersunk disk magnets. There is ample clearance around the ball
joints for movement.

Edit: my rods are 285mm from the ball ends center to center

I have been unable to upload screenshots of the height map to the forum so I have put uploaded into a google doc here:
https://docs.google.com/document/d/12lG_zHno2UNuHDC7RJ9nZtWuhsHGS9znnXJKTbSSxZU/edit?usp=sharing

@Danal and @Dougal1957 This is much more clear to me now, I have edited the bed.g file and the printer is hitting all the probe points now. Thank you

@Veti I liked the idea of the Anycubic probe when I was modelling the effector, in hindsight I would have gone with a Duet strain gauge effector. I have ordered the probe you linked, will give it a go. I have not payed much attention to the heater control yet - I'm panning to start reading about this, thank you too.

Which software parameters might be leading to the bed level pattern?

After reading the 'Calibration of Delta 3D Printers' that Veti posted I'm going to check for mechanical errors. There's not much in the way of backlash and the rods all within 10 microns of 290mm. I will check all the magnets are pressed into printed parts fully.

Good evening @Veti, config-override.g config.g

That is a good read, thanks for sharing that!!

Hello @T3P3Tony, yes, I have plastered BEHR over most of the parts I made for this. My second name is Behrman - its an ego problem I think

@Danal @dc42

• The probe is a micro switch that mounts below the nozzle (borrowed from an Anycubic branded kossel).
• Here is my bed.g file.
• I didn't pay attention to these log messages on Friday, why might the probe not be able to reach the coordinates (100, -60) and its mirror? Bed size is 240mm in diameter.

Warning: Skipping grid point (100.0, -60.0) because Z probe cannot reach it
Warning: Skipping grid point (60.0, -100.0) because Z probe cannot reach it
107 points probed, min error -0.331, max error 0.273, mean -0.112, deviation 0.124
Height map saved to file heightmap.csv
Warning: Skipping grid point (100.0, -60.0) because Z probe cannot reach it
Warning: Skipping grid point (60.0, -100.0) because Z probe cannot reach it
G32
Calibrated 8 factors using 17 points, deviation before 0.142 after 0.128

I am unable to upload any images at the moment, I am getting the error message something went wrong while parsing server response.

• The top view of the height map does look irregular - most obviously two probe points are missing in one corner of the octagon. Sides of the octagon in the X and Y planes are bowed inwards slightly. I will upload an images possible.

Thanks again!

Good evening folks, I am having a bit if trouble with a new build. Any help is appreciated.

I am fairly satisfied with the build mechanically... What might be leading to the sinusoidal pattern here:

Thanks in advance,
Tim

Hi Ian, thank you for checking this!

I had no luck in the end and made my changes in the config files manually.

Again thank you for checking this none the less,
Tim

Good evening all

I would like to edit a few printer parameters in the Reprap config tool. I downloaded my config files, when I try and re upload the .json file to the config tool I get the following error message:

I have attempted this in Chrome and EE on two computers... same error message. Any help is appreciated!

Cheers
Tim