Functional Escalator Model - Redux

https://www.youtube.com/watch?v=gDvcnAUypVE

### If you'd prefer buying one assembled, I'm now selling these on Etsy! Visit my store here: https://www.etsy.com/shop/AYMakes/

This is a complete rework of my functional escalator model from 2022. It is a ground-up redesign incorporating a bunch of significant changes, including the following:

- Chain links now sit directly against the escalator steps. This allows the entire chain and step assembly to be put together in 1 step and reduces the sliding friction experienced by the mechanism.
- An assembly jig is provided that holds the steps together when installing chain links, reducing assembly time and difficulty. No more partial disassembly to get the chain on both sides of the steps.
- Fine-tuned the sizing and geometry of the moving parts. The model incorporates larger and fewer steps resulting in a lower part count. Larger pins on the steps reduce friction and make the parts easier to print.
- Steps now have a realistic groove pattern.
- Variants of the parts are provided that eliminate all M3 nuts, with the bolts going directly into the plastic, reducing part count and simplifying assembly. Note that the hex nut version is still available if you're concerned about stripping out the holes in the plastic.

This model comes in two variants:

- A standard size, containing 30 steps, which is slightly bigger than the 2022 design.
- A mini/short size, containing 22 steps.



# Parts required
## Non-Printed
…