The idea with Basic Trailer Project is that you can combine standard parts to make your
own trailer design. It is built with screws and nuts so you can change, upgrade, repair
or take it apart and build something else.

Twist and turn the objects so that the print fits you and your printer.

Here we have support legs. This version is motorized with one small motor
inside each leg. Switch polarity for up/down movement.
There are no limit-switches in these small legs.
You can control them with a simple ON-OFF-ON momentary switch, relay,
motorcontroller, microcontroller or whatever.
I'm going to use my homemade, Arduino-based digitalcontrol, same as I use
for my truck, forklift and other vehicles. Will make a new video when this project
is finished sometimes this winter.

Check this video how I made some useless supportlegs on my prototype trailer:
https://youtu.be/wwyBKh6TZkA
I was going to attend a truckmeeting and had to put it together with things
I had at home.

But anyway, the main goal is to make every function remote controlled.
I don't want to manually connect/disconnect trailer to truck.

Mountingholes fits double crossmember from Frame_Parts.

Here is a video for assembling:
https://youtu.be/g6Y_YFA-o4w

Parts needed:
6V Motor Long Shaft Screw Thread M3x55mm (x2)
There are many different gearboxes and RPM, I have 300 RPM
but it's up to you how fast/strong you need.
You can get them from many retailers, Ebay, Aliexpress .......
M3 nuts (square if you have)
Small selftapping screws (to hold motor in place and the middle part)