|Hey -- where's the wheel coupling?|
But I'm a Maker, and I can fix this! I hope you enjoy this story of how Maker tools -- 3D design and printing in this case -- were applied to a practical problem.
For several reasons (perhaps to be discussed another time) I decided to use PVC pipe as a supporting sleeve around a new fitted 3D-printed coupling. There would be some fun design in this, as some parts were round and others hexagonal, and all parts were of different sizes. There was also a little engineering involved to devise a way to deal with potential lateral stress since FDM 3D prints (FDM = fused deposition modeling, which is the most common technology used in current 3D printers) are susceptible to this, as lateral stress tends to break the weakest part of FDM prints (the inter-layer bonding).
|The red component is the tighly-fitted |
3D printed coupling. I will be supported
on the outside by a PVC sleeve.
|A 2-part PVC sleeve was placed over|
the 3D printed coupling for more
strength and stability. Note: there's
another fitted 3D printed ring under
the larger section of PVC.
|The final result -- a full-usable rolling table!|