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"Mantis" Slotbow - why did I not think of this before?


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Old 07-11-2015, 04:33 PM   #1
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Default "Mantis" Slotbow - why did I not think of this before?

The prototypes for potential new commercially made slingbows got me thinking...

Whisker biscuits work but they are expensive. Plus they don't last long, because of the rubber bands following through, damaging the bristles.

Rings will hold, but they are not accurate at all.

Therefore I tested a new concept today... so easy it is ridiculous! Just a hole for the shaft and some slots, 120 degrees, for the vanes...

It works! Super clean release, shot after shot after shot. NO follow up problem.

The weapon is a prototype, I used some leftover wood from the firewood pile... very gnarly. I like the look, and who knows I may apply a nice finish soon.

Video is filmed, will now do the editing.


Attached Images
File Type: jpg Slotbow4.jpg (25.9 KB, 355 views)
File Type: jpg Slotbow2.jpg (22.4 KB, 351 views)
File Type: jpg Slotbow3.jpg (23.9 KB, 351 views)
File Type: jpg Slotbow1.jpg (27.7 KB, 356 views)
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Old 07-11-2015, 04:51 PM   #2
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i must get some arrows and make a slingbow at some point


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Old 07-11-2015, 05:12 PM   #3
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I like it.
Is much flaring needed to smooth the entry of the arrow into the rest?
Might work for a railless minimalistic crossbow too ........
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Old 07-11-2015, 05:14 PM   #4
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Nice concept but what happens if the arrow is twisted wrong and the tail feathers do not line up with the gap? Hopefully the video addresses this question.
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Old 07-11-2015, 05:45 PM   #5
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Hey Dan, i have the opinion that the nock on the arrow will guide it, while drawing and releasing, so it
wont happen too often that the tail feathers get ripped off haha!

I really like the concept Joerg, i have some crossbow arrows here... maybe i build one for Phun!
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Old 07-11-2015, 05:52 PM   #6
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I applied a little bit of flaring, but indeed the nock aligns the arrow quite nicely... the hispeed cam clearly shows that. Also, the vanes look pristine even after dozens of shots.

I really recommend this! Much better than a whisker biscuit, and zero cost.
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Old 07-11-2015, 06:08 PM   #7
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Quote:
Originally Posted by bigdh2000 View Post
Nice concept but what happens if the arrow is twisted wrong and the tail feathers do not line up with the gap? Hopefully the video addresses this question.
Painted lines along the shaft of the arrow would make sure the fletching is lined up.
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Old 07-11-2015, 06:17 PM   #8
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Great great and again great....is the hole in the middle some kind of tapered? I can remember these slot on a crossbow of you. Seems you got the Concept for this before ,without knowing. 😉 i like it a Lot....
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Old 07-11-2015, 06:31 PM   #9
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Quote:
Originally Posted by deraNdy View Post
....is the hole in the middle some kind of tapered?
It is not tapered, but flared out a bit at the "shooter" side, to ease the vanes down the slots... used the dremel for the job.
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Old 07-11-2015, 06:38 PM   #10
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Ok thanks. And is there any negativ thing about the bandset slapping on the plywoodstarguide?


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