Zesty Nimble config?

Dougal1957

Your Jerk vbalue for the extruder is way to high

M566 X1200 Y1200 Z1200 E1200 ; Maximum instant speed changes mm/minute. Set all E-motors the same change it to
M566 X1200 Y1200 Z1200 E60 ; Maximum instant speed changes mm/minute. Set all E-motors the same

and try again

eddygara

@Dougal1957:

Your Jerk vbalue for the extruder is way to high

M566 X1200 Y1200 Z1200 E1200 ; Maximum instant speed changes mm/minute. Set all E-motors the same change it to
M566 X1200 Y1200 Z1200 E60 ; Maximum instant speed changes mm/minute. Set all E-motors the same

and try again

Nope doesnt do anything. The best way to explain the problem is that the nimble isn't feeding any filament into the hotend. I can see the motor spin, (suppppppppper slowly) But no plastic gets extruded. I know i don't have a jam, as once i release the breach block, i can manually feed filament with ease. What i do notice is that every time i remove the breach block it seems like it feeding filament away from the hotend, instead of into it. Even though i can see the the motor is spinning in the right direction.

Dougal1957

Eddy

This is my drives section

; Drives
M569 P0 S0 ; Drive 0 goes forwards
M569 P1 S0 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X200 Y200 Z200 E2600 ; Set steps per mm for 0.9 degree Tower motors with 16 tooth pulleys
M566 X1200 Y1200 Z1200 E60 ; Set maximum instantaneous speed changes (mm/min)
M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z1000 E120 ; Set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E500 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout.

This seems to work for me I suspect you have speeds set to high somewhere and the thisng is stalling? When you say the motor is turning the right way where are you checking that? (Motor shaft or arrow on the Nimble).

Doug

Dougal1957

Also I suggest you also ask on the Nimble forum or Discord channel the designers are usually around on there

eddygara

@Dougal1957:

Eddy

This is my drives section

; Drives
M569 P0 S0 ; Drive 0 goes forwards
M569 P1 S0 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X200 Y200 Z200 E2600 ; Set steps per mm for 0.9 degree Tower motors with 16 tooth pulleys
M566 X1200 Y1200 Z1200 E60 ; Set maximum instantaneous speed changes (mm/min)
M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z1000 E120 ; Set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E500 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout.

This seems to work for me I suspect you have speeds set to high somewhere and the thisng is stalling? When you say the motor is turning the right way where are you checking that? (Motor shaft or arrow on the Nimble).

Doug

After seeing that i didn't even notice there was a arrow on the nimble. I ran the test again and i can see that the motor shaft actually moves in the right direction, and the nimble arrow doesn't move at all. that's strange. It came to me fully assembled, but missing some screws when i received it. Ill check it and reassemble it, but doesn't make me feel confident, after i just ordered the dual upgrade..

Dougal1957

How did you get it fully assembled didn't know they were doing that check the the inner drive cable is located properly in both the nimble itself (Square ended) and in the motor drive collar this could be either a round end if original cable or Square if it is the new updated cable that I believe they have sent to anyone who has bought one from them?

eddygara

The nimble came to me fully assembled, but missing some screws when i received it. And both sides of the drive cable are square ended

I was able to replace the screws which wasn't a big problem. Once installed i also noticed that the clamp that holds the drive cable sleeve in place, which also rest on the nimble body, doesn't fully stay seated. In other words once i line up the slot of the nimble with the lip of the drive cable latches lip, and tighten the screw. the claps tilts towards one way, not staying fully seated. Im not sure if that has anything to do with this problem as well.

The next thing i did was run the extruder removed from the hotend. Here i noticed that it still would not move the gear, and instead it seemed to skip on the inner bearing of the nimble. I had too put quite a bit of pressure to get it to hold together and have it move some what, but still skip.

Dougal1957

Think you may have to get on the Zesty forum/discord channel and ask them I am at a loss now as I can't actually see it.

Though Lykle may well see this post ans respond in fact I'll msg him on the discord and alert him to it

Zesty_Lykle

Yeah, this sounds like the Nimble might not be put together right, there are too many strange things happening.
Please bounce over to the Chat so we can fix it.

Lykle

briangilbert

@eddygarra are you able to jump on a google hangout or skype call? PM'd you my details.

briangilbert

@eddygarra we can't see a M350 in your settings either.. here are my relevant settings:

[[language]]
M350 X16 Y16 E16 I1    			; Set 16x microstepping with interpolation
M92 X200 Y200 Z200 				; Set axis steps/mm http://prusaprinters.org/calculator/#stepspermmbelt
M906 X950 Y950 Z950 E500:500	; Set motor currents (mA); set each extruder explicitly
M906 I100			; Set motor idle factor to 100% while testing so they don't idle at all
M201 X1000 Y1000 Z1000 E120		; Accelerations (mm/s^2) Set all E-motors the same
M203 X5000 Y5000 Z5000 E1000	; Maximum speeds (mm/min) Set all E-motors the same
M566 X500 Y500 Z500 E1			; Maximum instant speed changes mm/minute. Set all E-motors the same
M92 E2400:2400			      ; Set extruder steps per mm explicitly for all the extruders

Dougal1957

I think the M350 default's to those settings which is why I didnt point it out

Zesty_Lykle

Alternate problem might be that the stepper is rotating too slowly to show. It needs to rotate at a nice pace.

Zesty_Lykle

After quite some investigations it turns out that the stepper can only rotate very very slowly.
Despite the fact that the config is correct in this matter.

What could be the cause of a stepper only being able to rotate so slow? Even when running free?
Could this be a wiring issue?

dc42

What are the specifications of the stepper motor?

Zesty_Lykle

Extruding at 5 mm/sec the normal revs for the stepper should be around 260 RPM.

Zesty_Lykle

I will ask what stepper it is.
But time difference means it will be tomorrow before I have an answer.

eddygara

I have Wantai motors (42BYGHW811P1), 1.8° with a rated current of 2.5a does that help?

dc42

@eddygara:

I have Wantai motors (42BYGHW811P1), 1.8° with a rated current of 2.5a does that help?

What do you have the extruder motor current set to in the M906 command? 2000 to 2200mA should be about right. If you exceed 2000mA, cool the Duet with a fan.

eddygara

@dc42:

@eddygara:

I have Wantai motors (42BYGHW811P1), 1.8° with a rated current of 2.5a does that help?

What do you have the extruder motor current set to in the M906 command? 2000 to 2200mA should be about right. If you excgeed 2000mA, cool the Duet with a fan.

I have it set too 500mA as recommended by the nimble setup page