OpenForge 2.0 Trebuchet
OpenForge 2.0 Trebuchet
3D
Published 2018-04-20T10:36:24+00:00
This is another special release. Like the Mangonel before this, this model is an open source release supporting Evan Carothers's Oakenspire Kickstarter. At time of publishing, that kickstarter is in it's last 45 hours.
This time we have a trebuchet! The model is fully articulated, though if you build yours like I built mine, it will be permanently fixed in the firing position. Like the mangonel, this is based on pictures of recreations, and mathematically the model is in the sweet spot that would maximize the force this trebuchet would be able to apply.
For instructions on how to get started with OpenForge, take a look at our tutorials.
OpenForge is now a patron supported project. I use the resources that my patrons give me in order to get the resources to let me create more sophisticated tiles with a greater level of detail. Please, support me, and I’ll deliver an ongoing stream of awesome gaming terrain. You can find more about OpenForge and Masterwork Tools at our:
- Online catalog and backer site
- Website
- Forums (Mostly we use facebook now)
Print:
- 1 trebuchet-arm.1.stl
- 1 trebuchet-arm.2.stl
- 1 trebuchet-arm.pivot.stl
- 1 trebuchet-winch.1.stl
- 2 trebuchet-winch.2.stl
- 1 trebuchet-track.stl
- 1 trebuchet-counterweight.split.1.stl & 1 trebuchet-counterweight.split.2.stl or 1 trebuchet-counterweight.stl
- 1 trebuchet-stone.stl
- 1 trebuchet-base.stl
- 2 trebuchet-brace.stl
Glue the braces into the base. Slide the arm pivot through the braces, and glue the two sides of the arm together, around the pivot. Glue the stone to the track, then the track to the base. Put the winch pivot (winch-1) through it's holes and then glue the two winch cranks on the ends. Glue the two halves of the counterweight together. Put filament through the hole in the counterweight, and through the hole on the short end of the arm. Clip, leaving about 2-3mm on either side. Melt the filament with a lighter and press it with something metal to rivet it on both sides.
I used some waxed twine to wrap around the arm to create a loop that could be attached by another piece of twine to the winch. Take 4 ends of twine on the 4 corners of the sling around the stone and glue them down. They can be tied back to one strand that goes back to the end of the arm and then is wrapped around it.
| Date published | 20/04/2018 |