They work well to keep tension on older belts. It will take some tweaking to find the right settings, but that is better than loose belts.
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
NEMA 17 Stepper Motor With Built-In 400Mm T8 Lead Screw For Improved RepRap Prusa I3 3D Printer Z Axis Or CNC Machine Performance - Iverntech
9 Review
Optimize Your 3D Printing With Phrozen Building Platform For Sonic Mini 4K
6 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
🖨️ ANYCUBIC Assembled Innovation Off Line Printing: Streamline Your Printing Process with Cutting-Edge Technology
5 Review
🔵 IFUN 3D Rapid Resin - Low Odor Photopolymer Resin for 405nm LCD 3D Printer - Fast Curing, Standard Rigid Formula - Sky Blue, 500g
5 Review
🖨️ IFUN 3D Printing Liquid Resin: High-Quality Innovative Solution
5 Review
🖨️ FLASHFORGE Adventurer: Enhanced 3D Printer with Removable Extruders and Monitoring Features
4 Review