WRS 1-1/2" Constant Force Balance Shoe Pivot
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Window pivot for WRS Constant Force Balance Shoe
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Model information
- Source
- Printables
- Category
- Other House Equipment
- License
- Creative Commons — Attribution
This part is intended to replace the pivoting piece on these WRS Constant Force Balance shoes: https://www.swisco.com/constant-force-pivot-shoe-slate-blue-pad/pd/Tilt-Window-Replacement-Pivot-Lock-Shoes/15-177
The parts listed in the above link are constantly sold out, and very difficult to find. I have found that the only piece that breaks on them is the pivot, which led to me designing this replacement in FreeCAD. I have developed and tested several versions of this pivot, and I've found that this version (2.5) works very well.
Because of its decent rigidity, I used PETG filament to print these. They also require the use of supports, and must be printed as oriented in the gcode, for structural integrity purposes. With that said, it is important to remember that the original part that this print replaces, is made from metal. The printed versions hold up quite well, but when replacing the window and tilting it back into its frame, ensure that the pivot arm is seated entirely into the body of the pivot itself. Also, be sure to tilt the window up slowly. If your printer supports it, it may be worth printing it with something more rigid, such as ABS.
Some light filing or sanding should be done on the printed part, to ensure the back side of the pivot is smooth, after breaking away the supports.