I got them to guide the X-axis carriage along the V-groove for the 3D printer. They are very tight for this application and I think they will add more x-axis resistance than necessary. I would not recommend these wheels for use in a 3D printer. I hope they loosen up over time.
Befenybay 2020 Upgrade: X-Axis Synchronous Belt Tensioner For Creality Ender-3/Ender3 Pro/Ender3 V2/CR-10/CR-10 V2/CR-10 V3/CR-20 Pro βStraighten And Stretch For Enhanced Performance
50 Review
BIGTREETECH TFT35 V3.0.1 Graphic Smart Display Controller Board For 3D Printer Ramps 1.4 RepRap 3D Printer Can Select Two Work Modes
13 Review
BIGTREETECH SKR Mini E3 V3.0 Control Board + TFT35 E3 V3.0.1 Graphic Smart Display Panel Board New Upgrade 3D Printer Parts For Ender 3, Ender3 Pro, Ender 3 V2
13 Review
Pack Of 5 TMC2208 Stepper Motor Drivers For 3D Printers, DORHEA V1.2 Module With Heat Sink And Screwdriver For RepRap, RAMPS1.4, MKS, Prusa I3, Ender-3 Pro Controller Boards
19 Review
π¨οΈ FLASHFORGE Adventurer: Enhanced 3D Printer with Removable Extruders and Monitoring Features
4 Review
π΅ IFUN 3D Rapid Resin - Low Odor Photopolymer Resin for 405nm LCD 3D Printer - Fast Curing, Standard Rigid Formula - Sky Blue, 500g
5 Review
Flashforge Adventurer 3D Printer with Detachable Precision Leveling System
6 Review
UV Curing Standard Photopolymer Printer by IFUN
5 Review