Topeak Folding Trolley To Brompton Luggage Block Adapter 3D Printer Model
The file 'Topeak Folding Trolley To Brompton Luggage Block Adapter 3D Printer Model' is (stl) file type, size is 27.0KB.
The file 'Topeak Folding Trolley To Brompton Luggage Block Adapter 3D Printer Model' is (stl) file type, size is 27.0KB.
This is a shim that adapts a Topeak folding grocery trolley (My favorite rolly grocery basket thing) to a Brompton folding bicycle's luggage block. For this project, I purchased an injection-molded luggage block adapter for the Brompton off of Ebay since that has to be a part with a lot of tensile strength--something that's hard to get in a 3D print.
I used stainless T-nuts on the inside, with ⅛ " thick aluminum plates running between them. The telescoping aluminum handle of the trolley provides the majority of the vertical strength, so two plates running horizontally between the bolts was fine. I didn't even have to drill new holes--the ones pre-molded into the basket lined up perfectly.
There was a bit more flex than I liked, but upon examination I realized that was due to the gap between part of the aluminum handle and the plastic wall of the basket. I just slid in another piece of the ⅛ " aluminum and it stiffened things up considerably.
| Topeak_Trolley_to_Brompton_Adapter.stl | 144.0KB |
