Category: 3dprint

Dahon Seat Post Fix

I had the bike seat of my Dahon folding bike falling off while riding. It turned out that the thread of a custom made nut out of aluminium / aluminum had failed causing the whole clamp to come apart.

The custom nut was impossible to source. So I had to design my own. This model replaces this custom nut. All you need is a M8 nut and a M8 washer.

I printed a test version in TPA (white) and the real version in hard TPU (black). I used 50% infill and supports.

Testing with a PLA test print
Dahon folding bike
Bike seat with the replacement nut mounted
The M8 washer slides into the side
Design in OnShape

Slide the washer into the slot on the side. For mounting, it helps to glue the nut into place. The M8 screw (M8x50, in case you’ve lost it), needs to be screwed in fairly tight. I added a picture to show that the supplied screw isn’t too short (the screw’s threads extending over the nut are visible).

The design is available under the same name on Onshape, in case you want to remix it.

Find the model files on Printables.

Wesco Trash Can “Silencer”

Avoids Wesco’s trash can sheet metal inserts scratching the floor when moving it around. Making it much quieter.

Really simple solution for a really annoying problem. I wonder why Wesco doesn’t supply something like this by default with its trash cans. The inserts out of sheet metal sit directly on the ground, thus making a horrible noise whenever the trash can is being emptied or moved around – preferably in the middle of the night.

Print a bunch of the feet out of a flexible material (TPU) and snap them on. They fit the insert of my Wesco “Kickmaster” trash can. I would expect that the relevant distances don’t vary with their other models. But I am interested to know.

Find the model files on Printables.