1
Organizers & storage
Thru-axle thread-on derailleur-hanger holder
A 12 mm dummy axle that holds a spare UDH or brand hanger on the workbench so the threads do not roll into the chip tray. Print in PETG. 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
2
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, where the first 3 small changes are free.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 |
|---|---|
| Shaft diameter | 12 mm |
| Shaft length (above flange) | 80 mm |
| Chamfer at free end | 1.5 mm |
| Flange outer diameter | 30 mm |
| Flange thickness | 4 mm |
| Root fillet radius (PETG strength) | 2 mm |
| Hanger hole diameter | 6 mm |
| Hanger hole distance from center | 11 mm |
| Relief diameter (M12x1.5 minor dia approx) | 10.2 mm |
| Relief groove width | 3 mm |
Example prompt
Create a 12 mm dummy axle 80 mm long with a hanger flange, 12×1.5 thread relief, 2 mm PETG.
Fit notes
A hanger on the bench is a lost hanger. Tell SpeakCAD 12×1.0 or 12×1.5, preview the holder in the browser, then download the STL.
Questions people ask about a Thru-axle thread-on derailleur-hanger holder
A 12 mm dummy axle that holds a spare UDH or brand hanger on the workbench so the threads do not roll into the chip tray. Print in PETG.
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
More organizers & storage
Jewelry tray with ring bars and earring holesReady-made, opens free. A dresser tray combining a ring bar section, a grid of 1.5 mm holes for stud earrings, and a shallow well for bracelets and necklaces.Apple Pencil Pro desk tray with USB-C adapter pocketReady-made, opens free. A desk tray that stores an Apple Pencil Pro or 2nd generation (166 mm long, 8.9 mm across) in a half-round groove, with a second groove for the shorter Apple…Bosch L-Boxx 136 insert for GSR 12V drill kitReady-made, opens free. A replacement inlay for the Bosch Professional L-Boxx 136 (Sortimo L-BOXX 136) that cradles a GSR 12V-35 drill, two GBA 12V batteries, the GAL 12V charger an…Whiskas and Felix cat food pouch dispenser boxReady-made, opens free. A gravity dispenser that stacks wet food pouches flat and feeds one from the bottom, so a 40-pouch box of Whiskas, Felix or Sheba lives on the shelf instead…Gridfinity 1×1 bin for SD, microSD and CFexpressReady-made, opens free. A 1×1 Gridfinity bin (41.5 × 41.5 mm, 3 units tall) that stands a CFexpress Type B card, two SD cards and two microSD cards on edge.Grease-gun coupler wall holderReady-made, opens free. A wall hook that parks a grease-gun coupler and a spare Zerk cap, 20 mm saddle and a 8 mm cap well.