homebrewed flatbed #2, spread axle
 

My prior thread was about my early junk, this one is geared toward this section. The flatbed at the end of that thread wasn't terribly realistic/scaled, but it looked sorta cool, and I knew it was just a toe-dip into the pool.

Once I figure out exactly how I want to build these, and work out the kinks, I think I'll do one with CNC'd alum framerails.

(old thread - http://www.rctruckandconstruction.co...ad.php?t=13078)

Started out with a simple set of framerails made from 1/2-thick wood. Carved them out to emulate flanges like a real trailer, and gave it fishbelly too. Trailer will be 42" long.

https://s5.postimg.org/v3c8ixzuf/RC_flatbed_2_-_01.jpg

Locations are marked for crossmembers and leafspring mounts.

https://s5.postimg.org/7p4970a7b/RC_flatbed_2_-_02.jpg


Cut some crossmembers from extrusion, made the frame, and mounted the Xtraspeed suspension bits. Some of these aspects will need changed as this evolves, though....

https://s5.postimg.org/fumb57vw7/RC_flatbed_2_-_04.jpg

Added a plywood top, alum extrusion to the edges and CNC'd a headerpanel and a lightchannel. The smaller screwheads were located with intent to paint them as marker lites. (I'm not versed in LEDs for these yet). Rough edges get cleaned up later on.

https://s5.postimg.org/6zlguq1yv/RC_flatbed_2_-_06.jpg
https://s5.postimg.org/cb0dfdqlj/RC_flatbed_2_-_09.jpg

Made a hitchplate, has multiple holes so I could adjust the pin location if necessary. It also can be rotated front-rear, which gives even further adjustability. This will be hooked to an RC'd Bruder, and I didn't know exactly how all the measurements would work out. The framerails on this one clear the tires nicely (learned that on the last trailer!).

https://s5.postimg.org/v3c8j1fav/RC_flatbed_2_-_13.jpg

Re: homebrewed flatbed #2, spread axle
 

Off to a good start!

Re: homebrewed flatbed #2, spread axle
 

The landing legs have been a major hangup. Have run thru a bunch of ideas, and each one either doesn't look very good, is hard to build, or probably won't operate properly. (I'm thinking of manually operated, screwdriver operated, or elec motor).

So I bought a set of non-Tamiya legs off ebay just to make some progress - and hit another brick wall. They nearly touch the ground when they are retracted upward. So either they are off, or my trailer is, or both.

So, can I get some help on some measurements?

1. What is the height to the bottom of a Tamiya trailer,
2. the height of their legs when retracted,
3. how much ground clearance do they give, and
4. what is the height at the top surface of a 5th wheel on a Tamiya truck?

Thanks!
https://s5.postimg.org/4fr10bs13/lan...-_IMG_0934.jpg
https://s5.postimg.org/jbpk7wvpz/lan...-_IMG_0935.jpg
https://s5.postimg.org/q261hcb5z/lan...-_IMG_0936.jpg