closed loop nema 17/23 driver/controller for Duet 3 6hc board

[supertb1]

@dc42 Hello DC42, the suspense is breathtaking on the completion of the closed loop duet stepper controller... any good news?

[dc42]

@supertb1 said in closed loop nema 17/23 driver/controller for Duet 3 6hc board:

@dc42 Hello DC42, the suspense is breathtaking on the completion of the closed loop duet stepper controller... any good news?

Yes. The new hardware prototypes are being manufactured and should be available soon. Meanwhile the closed loop firmware is being developed on the old prototypes.

[supertb1]

@dc42 I would be willing to pay $200 US for the controller, has there been a price point discussed on this yet?... I would love to be a (beta tester/youtube unboxer) tester of this controller. Also what are you using for steppers, or have you come up with a duet closed loop nema 17/23 motor for this new board?

[dc42]

@supertb1 we are testing with Nema 17 and Nema 34 steppers with built-in encoders from StepperOnline. Price will be higher than a tool board but I expect it to be lower than a 3HC. We will also offer an optional magnetic encoder + magnet to go on the back of a standard stepper motor.

[chernogorsky]

@dc42 set it to preorder somethere %-) willing to put some buks there

[MaxGyver]

@dc42

@dc42 said in closed loop nema 17/23 driver/controller for Duet 3 6hc board:

We will also offer an optional magnetic encoder + magnet to go on the back of a standard stepper motor.

This is amazing! I was already looking into ways to add encoders to my Bondtech LGX extruders. Thank you for your hard work!

[supertb1]

@chernogorsky I agree, I would be willing to put some money on this for pre-order.

[dc42]

https://twitter.com/Escher3D/status/1415953189145399297?s=20

[CNCModeller]

@dc42 all good progress. Looking forward to getting my hands on one!

[gregsaun]

@dc42 Awesome news, thank you and congrats to Louis as well!

[tristanryerparke]

@dc42 Hey David,
What kind of current rating are you thinking for these boards?
Tristan

[dc42]

@tristanryerparke said in closed loop nema 17/23 driver/controller for Duet 3 6hc board:

@dc42 Hey David,
What kind of current rating are you thinking for these boards?
Tristan

Up to 6.3A peak (4.5A RMS) @ up to 50V.

We have the new hardware prototypes running now.

[3DPMicro]

@dc42
I am adding cnc capabilities to a manual Lathe at work and was intending to use 2, 4'ish amp Closed loop Nema 23's from Stepperonline and a Duet 2 with expansion board for control. After reading this I would much rather use a MB6HC and the new expansion board. If I could get my hands on one of your new prototypes that would be great. Please let me know if you are interested in dedicating a board for cnc testing. I can be ready in as little as 3 weeks

[dc42]

@3dpmicro depending on what else you want to drive, it is may be that a Duet 3 Mini + the closed loop boards would be sufficient for your system.

[3DPMicro]

@dc42
Not much else. Spindle control at some point. I can see how the MB6HC would be a bit overkill for the application.

[supertb1]

@dc42 Hello dc42, it is that time of the month and I am as excited as I have been to take part in field testing the new closed loop controller and steppers. How close is Duet3D to coming to market? As always best regards.

[dc42]

@supertb1 we'll be starting the beta test phase shortly.

[martin7404]

@dc42 I am interested to test, willing to pay for the hardware

[supertb1]

@dc42 I'm with Martin7404

[Luke'sLaboratory]

@dc42

Sounds neat. What MCU do they use?

I'm definitely in for beta, if you're looking for volunteers. I have machines that are heavily EMF-limited at 325mm/s+, have stepper analyzers, and run 15k accel. I'll make sure they get the hot supper they deserve, and finally max out my Magnum+ with a .4mm nozzle.

Luke