3D Printed HTD3 HTD5 Pulleys

Covid cancelled my snowboarding holiday earlier this year and ended up buying the European equivalent of the Liftboard, made by a company called Helvei for £300 off of amazon. Few days later it was here and I got to tinkering.

First order of business was copying the wheel pulleys as these are proprietary and likely to break at some point (which they did). Printed these in PETG and lasted over 200 miles. Only realised the damage when I stopped using this board and took it apart for parts. Left is original.

Next board I built used Slick Revolution / iWonder wheels (rough stuff, cloud wheels). I designed a press fit pulley with bearing which fits the trucks I used. Optimistic about my previous success I printed these in PLA which lasted for about 8 miles before all tabs had snapped. Below melted mess is the result.

Clearly the tabs needed reinforcing, looked at other ABEC designs, it didn’t take too long to add some screw holes and try again. Printed the below in PLA as they’re all plenty chunky to hold up to some abuse.

Don’t mind the wobbly print. I am none too precious about how these look. I purposefully put some of the roughest pulleys in there to see how they hold up. Some had snapped tabs which I put in and screwed the lot tight. 100+ miles later I am not experiencing anything unusual on my 83MM wheels.

I am definitely not careful and bash these 20mph over cobble streets.

Have to say that this has been a success so far.