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29 Comments

  1. 7.62x54r
    September 20, 2013 @ 1:53 pm

    This comment has been removed by the author.

    Reply

  2. 7.62x54r
    September 20, 2013 @ 1:54 pm

    There you go with that drum sander again!

    I want to see and hear the outtakes from tying that theraband.

    Don’t you have to register that in California?

    Reply

    • Steve Ramsey
      September 21, 2013 @ 8:58 am

      Not as long as the wood is locally grown and the marshmallows organic.

      Reply

  3. Danny
    September 20, 2013 @ 5:27 pm

    Will it shoot bottle caps? and what’s the muzzle velocity of a mini marshmallow?

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    • Steve Ramsey
      September 21, 2013 @ 8:58 am

      We shot some rocks and it worked great. Scary though!

      Reply

    • 7.62x54r
      September 21, 2013 @ 1:00 pm

      Well, now you have a “destructive device”. Better get that out of CA ASAP!

      Reply

    • Unknown
      January 23, 2014 @ 1:10 pm

      I realize I’m incredibly late, but the question “What’s the muzzle velocity of a mini-marshmallow” is begging for the answer “African or European?” (http://www.youtube.com/watch?v=y2R3FvS4xr4)

      Reply

    • Anonymous
      February 27, 2014 @ 6:57 am

      Will it shoot larger marshmallows? Can you provide a template for that?

      Reply

  4. alorr4uz
    September 21, 2013 @ 5:28 pm

    So, awesome. Perfect for my upcoming camping trip with my brother and sister. I may or may not make them one, lol.

    Reply

  5. Anonymous
    September 23, 2013 @ 2:18 am

    You bratty kids are going put someone’s eye out with that thing.

    I’m calling your mother.

    Now GET OFF MY LAWN.

    Reply

  6. Anonymous
    September 23, 2013 @ 2:28 am

    Will it shoot suppositories instead of marshmallows?

    Reply

  7. Anonymous
    November 13, 2013 @ 7:59 pm

    What are the sizes of the Thera-Band pieces that you used?

    Reply

  8. Lyn Hughes
    November 24, 2013 @ 12:48 pm

    I just completed the first of two crossbows for my grandsons’ Christmas presents. Great project. I made a few changes to make them more resilient to rough handling. The first change was to make the crossbar by laminating 3 x 1/4″ layers of oak with the top and bottom layers parallel to the long dimension of the crossbar and the middle one at right angles. I think this will make it less likely to snap at the angle if dropped, sat on, etc etc. The second change was connecting the trigger to the body. Rather than tie it I made a small pivot out of two pieces of 1/8″ oak and some 5/16″ dowel. Works great.
    I’d like to send you a photo, but I’m new to this blogging stuff. Can someone tell me how to do it?

    Reply

  9. Phil
    November 26, 2013 @ 3:49 pm

    The PDF and Sketchup links go to some Chinese web site. I’d love to see the PDF.

    Reply

  10. Phil
    November 26, 2013 @ 4:00 pm

    PDF link is fixed!

    Reply

  11. Anonymous
    December 3, 2013 @ 2:36 pm

    Completed 2 today for stocking suffers. Very fun project and one my Dobie likes. He get to eat the marshmallows if he can find them.

    Reply

  12. Anonymous
    December 4, 2013 @ 12:10 pm

    Hi i have tried making one of these using the plans turned out great. best project i’ve done of yours so far

    Reply

  13. Troy Lenhart
    December 7, 2013 @ 2:15 pm

    I would love to make a couple of these. What mil. is the thera band?

    Reply

    • John Landis
      January 5, 2014 @ 9:21 am

      Follow the link to “where to buy” and it shows it as 25 mil

      Reply

  14. Unknown
    December 9, 2013 @ 8:40 am

    This comment has been removed by the author.

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  15. Mike Garner
    December 15, 2013 @ 2:24 pm

    I have had great fun making two of these for my grandchildren (4 and 7, so don’t need a lot of power). After wrestling with a physical therapy band my wife had, I gave up and substituted a piece of a 3/16 bungee cord. I made loops through the arms of the bow and secured the bungee with copper crimping sleeves I picked up in the electrical department at Lowe’s. Much easier and looks great! Thanks again for posting this terrific project.

    Reply

  16. Dennis
    December 22, 2013 @ 5:47 am

    great project …
    just 1 point . When you make a pdf with a dark background and I print it. I use almost an entire ink cartridge. 🙁

    Reply

  17. 13P Dave
    January 4, 2014 @ 9:34 am

    This is a great project. I sure wish there was a way to consolidate everyone’s mods to make it even better. Here are some:
    – You get much more punch if there is virtually no slack in the launch cord when at rest.
    – Width of rubber that steve used is too wicked for a young child. I made mine about 1/2 of his width
    – Someone else said NOT to sand down the guide bars at the release point so that the launch chord lines up with the middle of the marshmallow. I also put a small block bridging the gap beween the rails at the launch point so you get a clean release of the cord.
    – For older kids, you could extend the gun a little at the cross bars and the release point to stretch the rubber more … or make the crossbar wider.
    – don’t use fishing line, but extra strong sewing thread (the unbreakable stuff). Fishing line doesn’t tie well and knots weaken the line
    – I’d like to see someone’s pics of a different trigger. This one works fine, but i’d like to see

    anyone else? I’m on my 4th gun now. Everyonoe that sees it wants one! 🙂

    Reply

  18. Jeff Olsen
    January 14, 2014 @ 6:25 am

    I had a “blast” making these for my nieces.
    Two things that I modified:
    1. I used surgical tubing. I just cut a 3/4 inch piece of dowel and shoved it up to the center of the tubing so that there was a stable spot for the trigger to push against. It also made a large marshmallow contact area. I used small dowel plugs in the ends to secure the tubing. That make tension adjusting a snap!
    2. I used very small zip ties to secure the trigger and firing pin.

    Reply

    • Anonymous
      March 23, 2014 @ 9:14 pm

      Jeff, would love to see a picture of yours.

      Reply

  19. Alamgir abir
    May 10, 2014 @ 8:04 pm

    Concept is very helpful to know about the Crossbows. Your writing concept is really good to me and I hope it will helps me a lot to enjoy a quality Crossbows like crossbow reviews

    Reply

  20. Anonymous
    May 12, 2014 @ 9:38 am

    can I buy one

    Reply

  21. Jay Hilgeford
    March 26, 2016 @ 6:05 pm

    Made several of three. My wife is a nanny for two little girls, I gave them each one today and they are having a blast with them. I had a hard time with the Thera band so I ended up using short bungee cords. I snipped one end off and removed the metal hooks. I then threaded the bungee through the holes, pulled them tight and pegged the ends into the holes and glued with some ca adhesive. Thanks Steve!

    Reply

  22. Kevin Bradshaw
    May 22, 2016 @ 9:52 am

    Question – maybe I missed it, but what kind of wood is used/recommended? I can’t wait to make this!

    Reply

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