I finally had a chance to get everything mounted and connected for a first test. This machine is fitted with a Duet 0.8.5 and BLTouch…

https://youtu.be/rX8L5HIXgO8

https://youtu.be/o2YIRTsjx7w

Here's a YouTube video of my Mini Delta running a Duet WiFi and FSRs for auto calibration. Other than using a spare 750-watt HP server supply to power the thing, everything else is completely stock.

A 4.3" Panel Due mod is next, unless there's a firmware branch that supports serial OLED displays for printer/job status, etc.

Anyway, here's how one of the first test prints came out:

Enjoy

Perhaps I'm being thick, but how does one define X,Y coordinates for the Z motors on a moving bed printer like the Prusa i3?

Hey David, did you see my question nested up a few posts about dual-Z motor cartesian printers?

Can this new independent Z motor leveling be used for dual Z Cartesian printers like the Prusa, OrdBot, clones, etc, or is this a Delta only feature? Seems like it could be used to automatically get the X-axis of the bed mechanically leveled, only requiring the Z motors to track Y-axis movement…

Thanks David. Those 3 holes are for the wheels themselves.

But it looks like switching to something like this could work if I can find a printable belt fastening mechanism:

https://www.thingiverse.com/thing:1638410

OpenBuilds precision V-Slot and Delrin rollers vs cheap Chinese linear rails? No thanks…

@CaLviNx:

Just go buy linear rails and enjoy the precision

Wow…I've just now noticed this topic. What a stunning design, I really love the concept!

I was just planning on refitting my delta with wider rod spacing and a piezo Z-probe effector, but I really like this design better than any printable one. For folks with machines like my UltiBots 250 V-Slot...how would we go about mounting the carriage adapters to our existing wheeled carriages like these?

https://github.com/UltiBots/K250VS/blob/master/Experimental/umbee_carriage_45.stl

Also, if you haven't already is there any chance you could work with the Zesty Nimble crew so they can design a mount for this new heatsink/effector arrangement?

Cheers!

I repaired a Duet WiFi that succumbed to the same fate and it needed practically every 5V device including the MCU and WiFi module replaced. Unfortunately, if I were to charge for that repair it would approach the same cost as just replacing the board…

@j1999t:

I am in the US, and i sent W3DRK a message about a week ago with no response…

Hmm I never received a PM notification from the Forum system. A friend just referred me to this post.

This repair would be a piece of cake. Try sending me another PM and we can work out the details.

Thanks!

W3DRK

BLTouch works perfectly with Duet now, no need for the SparkFun board. And just as you suspected, it works fine with the 3.3v servo signal without any external buffering or inverting. See my post about it here:

https://www.duet3d.com/forum/thread.php?id=459