Wood Train Castle Drawbridge Brio, Ikea, etc

Update #1 - 4/11/2025:

I have added an additional profile for the landing top which has a male track connector piece on it. This was requested by a few folks. I finally found some time to play around with it. Enjoy and thank you everyone for the support!

Original Description:

This draw bridge castle compatible with Brio, ikea, lidl, etc. 

Assembly is very simple. There are 3 print profiles in total. The first and longest profile is for the castle and draw bridge parts. The other 2 are for landscape around the castle. One is a moat and the other is a 4 lane track. Neither are needed for the draw bridge to work but they do complete the look and allow for some customization.

Hardware/additional parts

• Some glue is recommended on the gearbox assembly.
• Small string 38" long (less than 6mm or ¼" diameter) will work. In the photos of the model, I used masonry line as its what I had on hand.

Assembly:

Step 1: Start with the gearbox and gantry base.

Place the gear inside the bottom section and ensure no glue gets in this area.

Apply your favorite glue to use for PLA on the pegs of the bottom piece. Place the top on.

Next apply glue to the pegs and base of gear box. Place the gear box and pegs on the gantry base

Step 2:

Take the completed assembly from step 1 and place the gantry on top of the base

Apply some glue to the hex drive on the side spools. Insert them through the gantry window and into the gear box. I like to make sure the holes in the side spools are aligned.

Step 3:

The last step is really final assembly of everything else. Only the gear box and top gantry assembly steps are crucial to follow when gluing parts on. For the string, put it through the bridge first and then up to the side spools. Use your favorite knot style to affix the string to the side spools.

Use the spools on either side to raise and lower the bridge. The bridge will stay in the up position as well!