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New video: Automatic Archery Bow (Patreon)

Published:
2021-08-13 21:23:30
Imported:
2026-06

Content

Wow. What a hugemongous, crazy project! I've had this idea in my mind for years and it's so cool to see it finally come together. The results are pretty amazing so I'd encourage you to check out the video if you haven't already!

All told this project was eight solid weeks of work, and 8 terabytes of footage. It's kind of crazy all of that boiled down to a 17 minute video... I did have a really hard time deciding what to show and there was a lot of stuff that just didn't fit into the video. I'm planning to do a behind the scenes commentary livestream for this video in the coming weeks so watch out for that! 

I still can't get over the fact that I'm able to spend so much time building stuff like this. Thank you all for all the support! Also, there will likely be discussion of the video in the #smh-video-discussion channel on the discord. You should hop on there if you're interested. I'll be there!

- Shane

Files

Automatic bow vs. FLYING targets

You should work at Formlabs. Apply here: http://bit.ly/formlabs-jobs 90% of this project was made on the Fuse 1: http://bit.ly/fuse-1-printer Support these projects on Patreon: http://patreon.com/stuffmadehere Get optitrack cameras: http://optitrack.com Thanks to the folks at Lifetime Archery for the use of their range: http://lifetimearchery.com ------------ I've been dreaming about making an automatic archery bow for a long time. I finally made it. I hope you like it!

Comments

Ed Hall

Your thumbnail game is on point!

marenoodles

I'm ashamed that I thought the '94 footage really was from '94 until I saw the mustache.

stuffmadehere

I tried really hard to make it believable so that's a nice compliment :) Everything about that was all fake. Even the TV was made of wood haha

Chris B

How did you create the VHS 90s TV effect?

Jeff Wallace

Congrats on your success! I am proud to be a Patron. Also, congrats on your family project ;)

Jeremy

Awesome! Could you use some string connected from the bow to the release to make the draw consistent, and avoid hitting yourself on release? That might pull the bow back on release.... maybe some progressive springs to allow some movement off the release before it couples strongly to the bow.... then add mass to the release to slow the acceleration. Or since you don't need to aim, maybe draw to your chest and use string to the steady-harness if it does any good at all. How did you solve the hitting yourself in the face problem?

Benjamin Clerc

This is just insane, I wow-ed the entire time of the video 😲 Also I have to admit that it is quite fun to see someone punch himself in the face 😂 Congratulations on the project, can’t wait to see version 2 !! And congratulations on the second little one 😉

Dorus Elstgeest

Looking forward to your match with a profesional archer! I don't know who lives nearby, but I would recommand trying to contact brady ellison.

stuffmadehere

The compound bow almost entirely eliminated the self-punching. The cam system on the bow reduces the pull force to a small fraction when you have the bow fully drawn. This means I'm not pulling very hard when it releases and no punching happens

Ed Hall

Floor mounted Ballista version?!? Think about all of the structural rigidity that can offer!

Lawry McCarthy

Yes Shane, Joerg Sprave has issued a challenge on his Slingshot Channel? He will send you one of his multi-shot Legolas bows that he invented. It is a good invent and build series, he has refined the design over many years to a commercial product. The two of you working on a project together will be the weirdest coolest collaboration ever.

Travis Burt

Hey there, just joined your patreon to drop some advice for v2 because I think this is cool as all hell. I shoot recurve competitively. A few people in my club shoot compound so I know a bit about their gear. I see three main points of inconsistency that may be causing your arrows to miss dead center. First is the arrow rest you're using. The bristle wrests are good for hunters because they hold an arrow well enough to lower the bow, but they're not good for target shooting. They slow the arrow down and aren't super stable during the release. Target bows use a platform that drops away right as the string is released so there's no interference with the arrow. Next is the release. The exact release point is gonna change a bit every time with the type of release you're using currently. This will slightly change the energy going into the arrow affecting its harmonics. You're gonna want to find a way to get your release hand into a consistent place, setting the draw length and making your hand more stable. Archers often use their face for this, drawing to a specific point along their jaw or somesuch to get a consistent shot. You could also make a rigid point on the gimble rig for this. Lastly the arrows. You may have already done this, but make sure your arrows are the correct stiffness for the strength of bow you're using. You can usually find a chart on manufacturer websites. Archers call that stiffness "spine" because we're strange and its measured on some arcane inverse scale. Anyways, love the videos and sorry for the essay!