Installing the Nimble Sidewinder

If you aren’t using our CR-10 Kit, you can skip to the section after Step 11 titled Stepper control.


Installing the Nimble, instead of the Sidewinder, you more or less follow the same steps. It is slightly easier to install than the Sidewinder.

Step 1

  • Heat up the hot end, when hot remove the filament, then let it cool down again.
  • Pull the white PTFE tube out of the bowden connector. (If difficult, you can do this after step 6)
  • Unscrew bowden connector and remove it.
  • Undo the tape holding the bowden tube to the braided sleeve.
  • Keep the tape for the last step.

Step 2

Insert nuts in base

Insert 3 x M3 nuts into the nut traps underneath the Nimble Sidewinder mounting block.


Easiest way to do it, is to screw a nut onto the long M3 screw and use that to push the nut in the space.

Step 3

Mount adapter block

Slide the mount block in sideways, making sure no wires are trapped on the right hand side.

  • Push the block to the left and down, till the right side clicks into the opening.

Step 4

Insert mount screw

Pull the block forward until the mount screw will slide down into the hot end.

Step 5

Screw mount into hot end

Use a 4mm allen key to screw in the mount screw.Do NOT overtighten, just finger tight is enough!

  • Before installing, make sure the Mount Screw has no powder left inside.

Step 6

Slide the PTFE tube all the way down.

  • Roughly 50mm into the hot end. Total length of the PTFE tube is 48.8 mm

Step 7

Slicing off extra PTFE

Slice off the PTFE tube at the top Flush with the top of the mounting screw.

Step 8

Mounting bottom half of Sidewinder

Fit the Bottom half of the Nimble Sidewinder

  • Insert and tighten the first M3 screw. Use the M3x16 screw in hole 1
  • Do not overtighten these M3 bolts. Simply finger tight and then and additional 1/4 turn is enough.


You do not have to do this with the Nimble. Simply assemble the Nimble and mount it on the block.

Step 9

Insert gear set

Insert the gear shaft with bearings, then close with the top half of the Nimble Sidewinder

Insert gear set

Use the next screw, M3x25 to tighten down the top half, in hole 2.

  • Do not overtighten these M3 bolts. Simply finger tight and then an additional 1/4 turn is enough.

Step 10

Insert the worm into the top half and close using the Worm lid. Use the M3x30 screw to bolt the top half to the mounting block, in hole 3.

Step 11

Insert the drive cable, via the connected sleeve clamp, in to the Worm and lock it in by rotating the Sleeve clamp. Place the M3 nut against the hole in the Top Housing and use the last screw, the M3x20, to lock the Sleeve clamp, Worm lid and Top housing together.


You can use the cloth tape that you took off in the second step to keep the drive cable sleeve and the wires in the braided sleeve together, if you want.

Stepper control

First of all a warning. in Step 16 you will need to work inside the control box while the power is on. So be careful, make sure you know which wires carry the mains and make sure you do not get close to those. Do this carefully and slowly. Just to be clear, there is a small risk of damaging the board if you mess up. So it is you responsibility to do this right, we are not to blame if you don’t.


Ideally use a non-conductive screwdriver to adjust the pot.

If, and only if, you are installing the Sidewinder, you need to reverse the direction of the stepper. Do NOT do this if you are installing the standard Nimble. If you have flashed the firmware, you can do that easily in the firmware. If not, you need to switch two wires at the plug going into the extruder stepper.

Step 12

Standard wiring for stepper

This is how it looks before modification.

Step 13

At the plug you will see little plastic tabs. One by one, lift these two and gently pull the wire out.

Switch these two wires.


So, counting from the orange tab, the outside wire goes into the second spot and the second wire goes into the fourth spot.

New state of the wiring for the stepper

This is what it looks like after you are done.

Step 14

Unplug the power supply for now. Place the control box upside down, after removing the spool holder if you use it.

Base of the control box

Undo these 5 screws, take off the base plate and put it aside.

Step 15

Now you see the power unit, this needs to be moved aside, but the wires can all stay connected.

Side of the control box

Undo the four screws on the side. Lift out the power unit and put it on the side where the control cables come out.


Support it with something roughly the same height as the control box.

Inside of the control box

Now you can see the control board. Isn’t small!

Step 16

Control board

The POT meter you need to adjust the Vref on is shown as is the Groun point you can use.

  • Adjust it to roughly 0.25 V. You do this by measuring the voltage between the center of the POT meter and the Ground using a multimeter.


You will have to plug in the power and switch on the machine to test this, so be careful! Ideally use a non-conductive screwdriver to adjust the pot.

Step 17

Done! Put the power unit back, using the four screws and then close the control box with the base plate.

Using the Sidewinder

Step 1

Opening the breech

Open the Breech block by squeezing the “ears” together.

Step 2

Inserting Filament

Insert the filament into the PTFE tube inside the Sidewinder.

Step 3

Closing the breech

Close the Breech, making sure it latches properly.

Step 4

Using a reverse Bowden tube

If you are using the rest of the bodwen tube to guide the filament, slide it down and push it into the Sidewinder.

Step 5

Ready to print

This is what it looks like as you are ready to print!

  • all that needs to be done now is add some start gcode to your slicer.

Configuring the Slicer

You do not need to adjust anything to your material profiles or layer settings. All you need to do is set start commands for your printer. So in your slicer, open the Printer settings and add the following code to your Startup Gcode:

;Marlin Setup g.code
M92 E2650   ; Set steps/mm extrusion
M201 E120   ; Set Extruder acceleration
M204 R120   ; Set Retract acceleration
M205 E3     ; Set Extruder Jerk
M203 E45    ; Maximum feed rate


These settings are correct, but it is always a good idea to see them as a starting point and then tweak settings on your system for optimal results.

Optional extra’s

We have a few optional extra’s that are available on Thingiverse.