A continuation post about usefulness of pogo pins. The first post is here.

Suspension

While looking for solutions for model cars suspension, I remembered that these pogo pins have a spring inside. Unfortunately, the default spring is relatively hard, "180g" force, (for P100 pins; this probably means that at maximum compression it produces 180g of force). However, the description page for these pogo pins says they can come with different springs, starting from 40g to 350g. P75 pins are ~100g by default, and can come in range 40-250g P50 pins are 75g by default and range from 20 to 120g. These soft springs seem much more suitable for a model truck suspension, but most of these options are only made to order, with corresponding pricetag. The softest options that are readily available on aliexpress are P100 80g and P75 40g. I am looking forward to test them soon, but at the moment I installed what I have, 180g spring.

Spring-based steering joints

Since I cannot (yet) 3D print U-joints or CV joints, I am looking for ways to do steerable driven axles by other means. Inspired by 3D printer spring-based shaft couplers, I attempted to use a spring from such pin to transfer rotation to a steerable wheel in AWD vehicle. So far it seems to work well and is smaller than what seems possible with 3D-printed parts.