Tevo Little Monster Delta. I used the T3P3 Kossel as a starting point. Using a borrowed config from Facebook it worked fine. Generating a new config in the Configurator I get a Json error as soon as I home all. I'll try a catch the particular error but it was something along the lines of invalid parameter in json response.

Oh I set the Configurator to firmware 1.17+ and I'm running 1.18.2 with all the recommended components for that version.

Is the Duet Configurator mentioned in the documentation the best way to create the initial config?

I tried to generate a config using the tool and every time I issue a G28 I get a Jason error and it disconnects requiring a reboot before I can reconnect. I also found it was inconsistent in generating the zip-file at the end. It only seems to work every other time.

Using firmware 1.18.2 and the components bundled with it.

This works with my the borrowed config from FaceBook. So it seems to be something with the Configurator.

I had things going well on my Delta using a 0.4mm nozzle and 0.25 layers. Z-probe is a BL-Touch with a height set at 2.0mm. So naturally I switched to a 0.8mm nozzle with 0.6mm layers and the first layer was too tall and I got poor adhesion. When I measured it it seemed about 0.4mm too tall so I changed the probe height to 2.4mm and ran G28/G32/M500 after the reboot. First layer still seemed too tall and about the same size as before. Tried probe height of 3.0mm and ran G28/G32/M500 after the reboot. First layer still seemed too tall and about the same height.

Any ideas?

What linear rails work with this setup?

The Tevo Little Monster uses an anodized plate with a machined lip to hold the glass in place with the heater glued to that. That is held in place by some standoffs and M5 bolts. Wouldn't be hard to adapt that idea to the Onyx stack. I like the removable glass on a Max V3 versus the glued in glass on the Tevo.

The web interface is very good but sometimes it is nice to not have to wake up my PC or tablet to do something quick. For example starting another job when one finishes late at night.

I like the base plate / top plate idea but why not use 40x60 verticals instead and then you have a center groove to mount rails on.

On my Delta I'm getting 141 points using 20mm spacing at 170mm radius. The firmware isn't complaining but am I building to large a mesh?

Yes, Duet uses the layout common with RC stuff which is setup to not kill things if you plug it in backwards (just won't work). The legacy 8-bit boards pin-out can result in VCC being sent to a signal pin or ground if plugged in incorrectly (bad). I prefer David's way (long time RC guy), he also uses locking connectors which is another smart move.

A less than perfect but quick solution would be to have the slicer insert comments that identify when it is printing something related to a particular model on the plate. If this were standardized then the printer firmware could ignore those sections on command.