November 24, 2025

Treadwell WED-15 : Mast Box build

September 2025

As the title suggests, this is a box that will store Treads Mast, and also for transportation to events etc. I won’t have to worry about it being knocked etc.

Started again on this, (September), I copied and modified the 3D lid corners etc from the head box build.

List of parts:
  • Base corners 3D printed [already printed - 2024] but were reprinted in TPU.
  • New lid parts, based on 6mm thick MDF, head box used 4mm.
  • New design for lid corners & lid edge pieces - 3D printed.
  • 6mm thick MDF, due to box length.
  • 30mm x 30mm black plastic angle, for the joint edges.
  • Fake carbon fibre wrap.
  • Clasp latches (didn’t use).
  • Foam padding.
  • Strap material (already have).
And so it begins…. 25/10/25
Base board cut to size

Next up was cutting the right angle plastic strips. These will be fixed through to the board.
Next was drilling corner feet location holes. These were originally going to be pop riveted like the head box but the thicker wood meant countersunk bolts and nuts.

Started with the base board, cut to size. Used the last pieces of carbon wrap from the head box on it. It has 3D structural support angles that will help to strengthen the sides/base. See picture below.

These are all drilled and bolted along with pop rivets fitted. Next up was the first end panel, cut/covered/holes drilled and bolted to the 3D printed base corner piece.
 

The lip/lid corners/lengths needed a redesign [picture above, right] from the head box as the lid didn't need additional support/strength due to the MDF's thickness.

Needed to buy some more wood lol, this will complete the remaining long side and the lid itself.


The foam strips I had in the garage from a previous project.

Assembling the base corners I noticed that the strain on them was more than on the head box, and the recessed corners caused the bottom half to split. So I re-printed them in TPU.

With the second sheet of wood I was able to complete the other side and start on the lid piece. Redesigned the 3D printed lid edges. I also drew up and printed off some strap catches out of TPU and also some, flexible hinges, again out of TPU. These will be secured in place with bolts etc.

Next was to TPU print some carry handle fixing points.


I hand stitched the edges to secure the straps onto the fixings. These straps were long enough to take the load and were fixed at furthest points possible, for balance etc.

Final pieces, to cover the lid in vinyl wrap, weather protection for the wood mainly, and two velcro lid straps.
I’ll post up some finished photos in a follow up Blog post, probably in the Xmas event next weekend.

Prusa account - free 3D stl files.
I'll upload the 3D files from this project to my account [link here].

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