Robo3D filament spool holder

If your filament holder is similar to the original Kickstarter one I suggest that you throw it away before it breaks off. This is much more robust design. It is simply a bolted on lamp holder cover with a 1/2" diameter threaded tube, some PVC tubing and a large washer from Home Depot. The assembly is bullet proof and can be unscrewed in a few seconds. The pipe can probably be extended to hold two spools but I have not tried this.
If you use your printer with children or for classes I highly di