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Replacement parts
Creality Ender 3 V3 bed leveling knob replacement
A replacement thumbwheel for the bed leveling screws on a Creality Ender 3 V3 SE and KE, Ender 3 V2 and Neo, which use M4 screws with a knurled 34 mm plastic knob that cracks after a few rotations. The wheel is 40 mm in diameter and 10 mm tall with twelve 2 mm scallops around the edge for grip, a pocket for an M4 square nut 7 by 7 by 3.2 mm pressed in from the top with 0.1 mm interference, and a 1 mm chamfer underneath so it clears the bed spring. Print it face down in PETG or ABS at 100 percent infill; the nut pocket needs no supports. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
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Adjust
Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.3Print
Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).
Dimensions of the ready-made model (editable)
| Parameter | Value |
|---|---|
| knob diameter | 40 mm |
| knob height | 10 mm |
| number of scallops | 12 |
| depth of rim scallops | 2 mm |
| through hole diameter for rod | 4.5 mm |
| nut nominal width (across flats, square) | 7 mm |
| interference for press fit | 0.1 mm |
| depth of nut pocket from top | 3.2 mm |
| bottom chamfer size | 1 mm |
| raised arrow height | 0.5 mm |
Example prompt
Design a bed leveling knob 40 mm in diameter and 10 mm tall with twelve 2 mm deep scallops around the rim, a central 7 by 7 by 3.2 mm square nut pocket from the top with 0.1 mm interference, a 4.5 mm through hole, a 1 mm bottom chamfer and a 0.5 mm raised arrow on the top face.
Fit notes
Oversized knobs give finer control than the tiny originals, but only if the nut pocket matches your screw. In SpeakCAD you name your Ender model, preview the wheel in the browser, add a hex pocket for an M3 nut in the chat, and download the STL.
Questions people ask about a Creality Ender 3 V3 bed leveling knob replacement
A replacement thumbwheel for the bed leveling screws on a Creality Ender 3 V3 SE and KE, Ender 3 V2 and Neo, which use M4 screws with a knurled 34 mm plastic knob that cracks after a few rotations. The wheel is 40 mm in diameter and 10 mm tall with twelve 2 mm scallops around the edge for grip, a pocket for an M4 square nut 7 by 7 by 3.2 mm pressed in from the top with 0.1 mm interference, and a 1 mm chamfer underneath so it clears the bed spring. Print it face down in PETG or ABS at 100 percent infill; the nut pocket needs no supports.
Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.
On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.
A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.
Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.
No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.
Print it your way
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