Extruder's stepper - 1.8deg or 0.9deg?
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Hi,
You also might like to check out the Zesty Nimble family. It combines the best of direct drive and Bowden "drive" with few of the shortcomings.
It's a geared unit and my steps/mm setting is 2700. For me a retraction setting of 1mm at 30mm/sec works well.
I recently equipped both of my printers with them. I'm as happy as clam at high tide with the results.
Frederick
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@fcwilt, I recently saw a video about it, IIRC it was a MRRF interview. Very interesting. I cam currently stabilizing a new CoreXy printer but once it will settle down Zesty will definitely be on the short list.
My Bowden is 60cm long so I presume I need the Nimble 75cm cable, and will also need some loose ID PTFE tube for the filament feed.
How is it attached to the X carriage? Some holding screws or just being attached to the top of the hotend (e.g. V6)?
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@zapta said in Extruder's stepper - 1.8deg or 0.9deg?:
How is it attached to the X carriage? Some holding screws or just being attached to the top of the hotend (e.g. V6)?
they are making all adapter available on thingiverse.
https://www.thingiverse.com/ZestyTech/collections/adaptors-for-the-nimble -
@veti, that's very useful, thanks. I do see mounting screws which is good. It's interesting that the use the sidewinder for the HEVO. I would think everything going up and tied together (extruder cable, electric wires and filament PTFE tube).
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@zapta said in Extruder's stepper - 1.8deg or 0.9deg?:
@veti, that's very useful, thanks. I do see mounting screws which is good. It's interesting that the use the sidewinder for the HEVO. I would think everything going up and tied together (extruder cable, electric wires and filament PTFE tube).
I recently fitted a Nimble feeding a E3D V6 to my FT-5. I designed and printed the mount.
I used a vertical Nimble and used the drive cable as a support for the wires going to the hotend.
I did not use any sort of tubing as a filament guide, I just feed directly off the spool. A tube might be a good idea.
After I got Nimble up and running I decided the mount would be a good place to add a pair of fans for part cooling.
As I type I am printing the parts involved in that.
Attached is a picture of the experiment to see how a part cooling fan would work before I undertook modifying the mount to accept the fans.
Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6
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@fcwilt said in Extruder's stepper - 1.8deg or 0.9deg?:
I recently fitted a Nimble feeding a E3D V6 to my FT-5. I designed and printed the mount.
in toms mrrf video they said they will design an adapter for every printer. you just have to contact them.
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@veti They even have an adapter for a Titan Aero! ROFL!
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@veti said in Extruder's stepper - 1.8deg or 0.9deg?:
@fcwilt said in Extruder's stepper - 1.8deg or 0.9deg?:
I recently fitted a Nimble feeding a E3D V6 to my FT-5. I designed and printed the mount.
in toms mrrf video they said they will design an adapter for every printer. you just have to contact them.
I do remember hearing that.
I'm fine with designing my own parts.
Adding the fans led to some conflicts with existing original parts of the printer. I had to work out a fix for those issues which led to designing other parts.
Great fun when it all comes together.
Frederick
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@fcwilt said in Extruder's stepper - 1.8deg or 0.9deg?:
I recently fitted a Nimble feeding a E3D V6 to my FT-5. I designed and printed the mount.
What kind of a stepper do you use for the nimble? With the 30:1 gear ration I presume that a small pancake 1.8deg stepper is more than enough.
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@zapta said in Extruder's stepper - 1.8deg or 0.9deg?:
@fcwilt said in Extruder's stepper - 1.8deg or 0.9deg?:
I recently fitted a Nimble feeding a E3D V6 to my FT-5. I designed and printed the mount.
What kind of a stepper do you use for the nimble? With the 30:1 gear ration I presume that a small pancake 1.8deg stepper is more than enough.
I would imagine. I just used what I had on hand - nothing special - a typical 1.8 stepper.
Frederick
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I tried installing a half length 0.9deg stepper but the one I got didn't have a flat side on the shaft, shaft was barely long enough and the depth of the 4 mounting screw was not as deep as a standard stepper. Will get to it another time. It looks nicer though on my printer than the full size stepper.
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+1 for the Nimble. Been using it for a while now and it's working great...
It's a little hard to see but that's because it's so small. It tucks right between my hotend and part cooling ducts,
