Duet3D PCB delta printer effector sneak preview
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Doubling up pins is bad practice.
Bad practice… hahahaha
Try being in the field and the company man is screaming to get the job done !!! If you think Deepwater Horizon was far fetched on that front think again... anyway
"if" I was doubling up on pins I would be doing it for myself and not worry about a pissing contest of who did what where or when and live with the consequences of that choice.
So to get back on topic I see a need (for me anyway) for the following to go the effector.
X2 wires for the Heater cartridge. (of a suitable gauge to handle the required load)
X2 wires for the Hot end temp signal
X1 "live" to feed the hot end fan, cooling fan and any lighting (again of a suitable gauge to handle the required load)
X3 "signal earths" for controlling the fans & lightingAnd any additional wires to cover the contact sensor requirements
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Yes, but not everyone knows that. Better stated: The biggest issue with network cable on stepper motors is folks using solid core cable which can't handle the flexing.
Hence my comment to David about using flexible silicone wire, which in hindsight was a stupid comment as he more than likely understands that better than most.
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Hi guys
Any update on this kit being released. Yet
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There is a 5-week lead time on the modified E3D heatsinks, and the order has only just been placed. We are waiting for feedback from beta testers before we finalise the rest of the design, but unless that results in major changes then we can manufacture production electronics more quickly than that. So I hope we will be shipping kits about 6 weeks from now.
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Is there any chance to get two or four of those heatsinks either through you or e3d around that time? I'd love to use the screw-top mount over the groove mount.
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There is a 5-week lead time on the modified E3D heatsinks, and the order has only just been placed. We are waiting for feedback from beta testers before we finalize the rest of the design, but unless that results in major changes then we can manufacture production electronics more quickly than that. So I hope we will be shipping kits about 6 weeks from now.
I would like to buy the effector and plate adapters, dont need anything E3d I already have an adapter system 90% ready to allow me to use my Prometheus hot end in the same manner as your pics show. I just need the effector to allow me to 100% match the hole spacing.
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Once we have finalised the design I will publish the dimensions
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Do you guys have any ETA on this? I'm really excited about it, looks perfect for what I need.
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See my previous post.
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Six weeks, sorry. I was a little overzealous!
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Just stumbled across this thread and flipped through the pages without reading every line, so I apologize, if that has been asked before:
Have you considered putting LEDs on the PCB-bottom? -
Have a look at https://duet3d.com/wiki/Smart_effector_and_carriage_adapters_for_delta_printer you will see if you scroll down to the underneath pic of it that there is indeed LED's on the bottom surface as well as 2 showing thru the top to indicate Hotend on and Sensor trigger.
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I'm in for one once this gets going as well.
I know adding an IMU was discussed earlier for autolevelling and calibration purposes, but I would another potential use as well: magball disconnect detection. It should be very easy to tell if the effector goes out of level by more than 10 degrees or so, and shut down the printer so no more damage is done. I would take an IMU on board for that purpose alone.
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David, what sort of accuracy/repeatability results are you finding for fully assembled ball-ball spacing across rod pitch and array angularity as well as ball planar relations? Standard PCB hole-hole tolerance is +/- 0.10mm. Add to that slop in the ball stud hole fit, ball-to-stud concentricity ( don't know how Haydn specifies this ) as well as PCB warp and stud flange face to ball center. Serious tolerance budgeting - it might be interesting to see what a three sigma distribution looks like. On the other hand deltas often seem to work fairly well even with some pretty low tolerance angle ball stud (ugh!) printed effector platforms.
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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!
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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!
Just go buy linear rails and enjoy the precision
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OpenBuilds precision V-Slot and Delrin rollers vs cheap Chinese linear rails? No thanks…
@CaLviNx:
Just go buy linear rails and enjoy the precision
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The carriage adapters have the usual 4 mounting holes on a 20mm square to attach to standard linear rail sliders or Kossel wheeled carriage trucks. If the two holes on one side of that carriage are 20mm apart, then I guess you could drill another hole in the carriage adapter for the single hole on the other side of your carriage.
Having first used wheeled carriages and then switched to linear rails, I prefer the rails too.
We have a couple of beta users who are investigating how to mount the Nimble on top of the effector.
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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:
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Hi David,
I have a linear rail carriage with mounting holes on a 26 mm square.
Is it possible to have carriage adapters with no mounting holes so I can drill them using a printed jig?Regards,
Vasan
