Mini-Marshmallow Crossbow Pistol

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twforeman
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Mini-Marshmallow Crossbow Pistol

Post by twforeman » Mon Jan 06, 2014 2:49 pm

My latest project is making a crossbow pistol that shoots mini-marshmallows.

I started out by using plans found at Woodworking for Mere Mortals and standard woodworking tools to make a pair for my niece and nephew.

Then I decided I needed to revise the design and kick it up several notches. Since I drew the parts in LibreCAD, I decided to machine the parts on my ShapeOko. It would have difficult to make some of the parts without the ShapeOko.

Here is a teaser photo of the Mk II Model B2. This is actually the third prototype pistol I've made and there is a fourth in the works. I keep finding things to tweak in the design. Milling the parts on the ShapeOko is fast and allows for pretty rapid prototyping.
mm-mkii.jpg
mm-mkii.jpg (130.56 KiB) Viewed 4217 times
Here is a detail of the trigger - this is an older prototype and there are a few changes, but it's essentially the same.
trigger.jpg
trigger.jpg (177.71 KiB) Viewed 4217 times
I plan on fully documenting the build process on my blog when I'm done and will update this post when that happens.
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WillAdams
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Re: Mini-Marshmallow Crossbow Pistol

Post by WillAdams » Mon Jan 06, 2014 3:18 pm

Very cool!

You know, you could get a length of hickory (a tool handle works well, or if one wants a lot there're always wheelbarrow handles) w/ straight grain and make a real prod instead of using the rubber bands....
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twforeman
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Re: Mini-Marshmallow Crossbow Pistol

Post by twforeman » Mon Jan 06, 2014 3:26 pm

I'm sure I could. :)

When I start making pistols that fire real bolts I'll look into it. :)
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Ing Chao
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Re: Mini-Marshmallow Crossbow Pistol

Post by Ing Chao » Mon Jan 06, 2014 4:29 pm

I'm looking forward to seeing the build log for these! My kids would love for me to build these for them.
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bobt
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Re: Mini-Marshmallow Crossbow Pistol

Post by bobt » Mon Jan 06, 2014 10:15 pm

My only challenge is do I eat my ammunition or shoot it.

Bob
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ThatDamnGuy
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Re: Mini-Marshmallow Crossbow Pistol

Post by ThatDamnGuy » Tue Jan 07, 2014 2:29 pm

That looks like a lot of fun to make. I will add this to the ever growing list of projects!

Thanks for sharing.

twforeman
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Re: Mini-Marshmallow Crossbow Pistol

Post by twforeman » Sun Jan 12, 2014 10:20 pm

Shot some video today while I was milling parts for a batch of crossbows.

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gmfoster
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Re: Mini-Marshmallow Crossbow Pistol

Post by gmfoster » Thu Jan 23, 2014 12:46 am

That is really nice work.

twforeman
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Re: Mini-Marshmallow Crossbow Pistol

Post by twforeman » Thu Jan 23, 2014 5:59 pm

Thanks. I shot another video the other day and forgot to post it here.

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twforeman
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Re: Mini-Marshmallow Crossbow Pistol

Post by twforeman » Wed Feb 19, 2014 3:47 am

Okay, all done with the first batch. :)

Here are a couple glamour shots.
IMG_5375-sm.JPG
IMG_5375-sm.JPG (131.54 KiB) Viewed 3595 times
IMG_5371-SM.JPG
IMG_5371-SM.JPG (129.23 KiB) Viewed 3595 times
And the blog post with all the gory details: http://timf.anansi-web.com/wp/making-ma ... w-pistols/
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