Lasernut U4 部件和升级：更宽12mm六角和边缘适配器

Lasernut U4 parts and upgrades wider 12mm hex and rim adaptors

2024-01-12 10:22:05

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Summary

I wanted to install Axial Trepador mounted on 2.2 beadlock rim to my lasernut. The orginal 12mm hex being very thin and loose over the shaft it did not give a lot of room for the load transfer to my rim adaptor. I made a selection of wider 12mm hex that will fit very tightly over the shaft and pin. The cylindrical shape of the pin was also integrated in the design for better load transfer. I used a Spectrum smart abs high impact for these parts. The plastic hex are easier to change than a damage rim with glued tire! For those who would like to use the original rim and wheel that came with the unit the 4 mm thick hex is the right one for you.

The rim adaptor are made to fit the 6 bolts pattern for Axial 2.2 method rim or the 1.9 combine to the 6 mm thick 12mm hex. The hole has been reduce to fit the size of the threaded portion of the shaft. Its possible that you will need to clean it with a drill bit after printing. This was to increase the surface area under neath the locking nut compare to the original rims.

The 12 mm hex have been printed at 100% with spectrum abs and the rim adaptor at 101% with duramic petg using Cura 5.6. If the rim are too tight over th adaptor they will have a tendency to tear them off the shaft when you remove the tires. This could easely lead to lost pin! Wich was my initial problem with the loose hex on my lasernut.

The installation of the support plate for the spare will require a M3x 35mm and to drill the original support threads out. The support is treaded an can bolted has the original one to tie down the spare.

If the hex is damage and needs to be removed from the rim adaptor you could use a M6 bolt has an extractor to pull it out.