
Cycloid Drive 25:1
NEMA17 · Ø85 mm · STL + STEP
PhotoAA dispenser, loaded · real photo of our own print of these files.
Load at the top, take from the bottom. Our AA dispenser holds 18 cells and rolls the next one into the cradle when you take one. AAA and 9V versions are included too (not yet printed by us).
Digital download, nothing is shipped. STL + STEP + Bambu 3MF, an illustrated guide with real photos, a material guide and the BOM. Secure checkout by Stripe; download links appear right after payment. What's in the pack.
Holds standard AA (LR6) cells; the AAA (LR03) and 9V (6LR61) versions are sized for the IEC 60086 maximum cell sizes. Hangs on an IKEA SKÅDIS pegboard. Photos show our own prints of these files. Anything we have not printed or checked is marked "not yet printed" below.
Every printed part with its filament and time, plus anything you need that is not printed.
| Part | Qty | Material | Each (estimate) |
|---|---|---|---|
| AA Dispenserupright | 1 | PLA | 121 g · 4 h 32 min |
| AAA Dispenserupright | 1 | PLA | 96 g · 3 h 47 min |
| 9V Dispenserupright | 1 | PLA | 101 g · 3 h 04 min |
| Twist Keyflat | 8 | PLA | 1 g · 11 min |
AA dispenser about 4 h 32 min and 121 g of PLA; all three about 12 h 49 min and 327 g (Bambu Studio estimates).
| IKEA SKÅDIS pegboard (any size)Yes: Not included. | 1 |
|---|---|
| AA / AAA / 9V batteriesYour own: Not included. | - |
| Plate | On it | Time | Filament |
|---|---|---|---|
| Plate 1 | AA dispenser + 3 keys | 4 h 41 min | 125 g |
| Plate 2 | AAA dispenser + 2 keys (not yet printed by us) | 3 h 54 min | 98 g |
| Plate 3 | 9V dispenser + 3 keys (not yet printed by us) | 3 h 13 min | 104 g |
Bambu Studio estimates for an A1 with a 0.4 mm nozzle and 0.20 mm layers; plates pack parts together, so they differ a little from the per-part sums.
One ZIP, v1.1.0. Personal, non-commercial licence.
Secure checkout by Stripe. Your download links appear right after payment and work for 24 hours. Terms of sale · Refunds.
Verified = shown by our own prints and photos, October 2026. Everything else is calculated from CAD and published sizes.
No. It is a digital download: one ZIP with the print files and guides. Nothing is shipped. You need a 3D printer (or a print service).
Any FDM printer that prints PLA. The 3MF plates are set up for a Bambu Lab A1 with a 0.4 mm nozzle; on another printer use the STLs with the settings in the guide.
No. Each mount hangs on IKEA SKÅDIS with our printed Twist Keys: push through, quarter turn, done.
No: the licence is personal, non-commercial use. Please link people to this page instead. A printed version is in our Etsy shop.
Email help@harbeworks.com with your printer, filament and a photo. The guide has a troubleshooting table, and fit tests are included where a device needs one.
It is the one we printed and use. The AAA and 9V files are in the pack, labelled "not yet printed"; we will add photos when we print them.
Personal, non-commercial use: print and use the mounts for yourself. Do not share, re-upload or sell the files or printed parts. Full text in LICENSE.txt in the ZIP.
IKEA and SKÅDIS are trademarks of Inter IKEA Systems B.V., used only to describe fit. Harbe Works is independent and not affiliated with or endorsed by IKEA.
Check the free parts list, then print a fit test first. Everything we have verified is marked.