75 replies to this topic

[JoergS]

I think that M8 probably works better than M6, the additional weight will increase the energy. But I will try both.

Threaded rods are very inexpensive, bought them for 1,50 Euro a piece (1 Meter). I can make six darts from each one. So I will have 18 M6 and 18 M8 versions. Add the hex nut and the wingnut and we are talking under 40 cents for a dart.

Jörg

[PandaMan]

Really? Looking online, it's stupid prices. Saw some for about £20 per meter!
But what bands should I use with these if I'm using M8?

[sabaca]

With 8mm diameter rod Joerg  is to build  a sort of crossbow, 8mm darts are heavy !

[JoergS]

PandaMan, on 02 December 2010 - 07:04 AM, said:

Really? Looking online, it's stupid prices. Saw some for about £20 per meter!
But what bands should I use with these if I'm using M8?

Here's 10 of them for 9 quid.

http://cgi.ebay.co.u...=item2c5698385c

Jörg

[JoergS]

sabaca, on 02 December 2010 - 07:30 AM, said:

With 8mm diameter rod Joerg  is to build  a sort of crossbow, 8mm darts are heavy !

Yes, a rubber powered crossbow. I will use heavy Thera Band Gold Bands, 2,5 times the strength of Fish Hunterbands. That should send the dart flying at 65 to 70 m/s. It will be devastating.

This could well be the new king of badass. :-)

Jörg

[PandaMan]

I think I'm going to use 5mm, because according to my calculations, that's the width that you used, Sabaca. Am I right?

[JoergS]

PandaMan, on 02 December 2010 - 08:08 AM, said:

I think I'm going to use 5mm, because according to my calculations, that's the width that you used, Sabaca. Am I right?

I think Sabaca used 6mm.

[zille]

I think it's 6...really works fine, don't mind the weight...you've seen Jörg shoot way heavier bullets than that and killing all kinds of targets.

[HOE]

JoergS, on 02 December 2010 - 08:06 AM, said:

sabaca, on 02 December 2010 - 07:30 AM, said:

With 8mm diameter rod Joerg is to build a sort of crossbow, 8mm darts are heavy !

Yes, a rubber powered crossbow. I will use heavy Thera Band Gold Bands, 2,5 times the strength of Fish Hunterbands. That should send the dart flying at 65 to 70 m/s. It will be devastating.

This could well be the new king of badass. :-)

Jörg

I can't wait to see your video shooting this thing.

[PandaMan]

My bad. I went out and bought some M6 rod and M6 wing nuts (butterfly nuts, whatever). Now what do I use to cut it to length and sharpen it?

[zille]

i used my jigsaw with a saw blade for metal. 10 seconds and the rod was cut...for the tip I just used my file and some patience.

[sabaca]

Quote

Now what do I use to cut it to length and sharpen it?

For mass replicating you need an Angle Grinder or grindstone to sharpen the tip, otherwise you have to work a lot,

a jigsaw is the right tool to cut a rod.

A set of darts in a glasses case ready to shot.

[JoergS]

I use my angle grinder both for cutting and shaping the rods.

[PandaMan]

I don't have either of those. I just made one using a junior hacksaw and some filing. It was totally worth it. I test fired it at a wooden box and it went inside! The whole thing made it through the first side of the wooden box. And also, I couldn't find any strong string to make the loop, so I used duct tape instead. I was using double TB black semi-butterfly.

[919h]

threaded rod weight 1 meter
Diameter
3 > 44gr
4 > 78gr
5 > 124gr
6 > 177gr
8 > 319gr

Butterfly nut
Diameter
3 > 2gr
4 > 3.4gr
5 > 4 gr
6 > 8gr
8 > 9gr

[PandaMan]

919h, on 02 December 2010 - 12:07 PM, said:

threaded rod weight 1 meter
Diameter
3 > 44gr
4 > 78gr
5 > 124gr
6 > 177gr
8 > 319gr

ear weight nut
Diameter
3 > 2gr
4 > 3.4gr
5 > 4 gr
6 > 8gr
8 > 9gr

Wow. That means my flechettes are 36.32 grams(560.502 grains)!

I'll be having fun with these!

[JoergS]

This means the M8 one weighs as much as the bonecrushers! And the M6 one weighs as much as a 19 mm (.75") lead ball.

Jörg

[luxor5]

Somebody has got to post a shooting video of these darts I am considering whipping some up but I don't want to waste my energy half assing them if I dont like how they fly.. But the "pro" made ones look very cool.

[Ryan]

Nice!

[JoergS]

I am thinking about replacing the single paracord loop with two smaller loops at the end of each band side. The two bands would not be connected by a "pouch".

Advantage: Less danger of potential entanglements (fletching and "knob").

Attached Files

•  Two loops.jpg   84.19K   81 downloads

[PandaMan]

Ok, Jörg. Let us know how that goes then. I'm interested in whether that works or not, because one of my flechettes got tangled in the loop and hit my lower arm. Luckily, it wasn't the sharp bit!

[HOE]

JoergS, on 03 December 2010 - 03:50 AM, said:

I am thinking about replacing the single paracord loop with two smaller loops at the end of each band side. The two bands would not be connected by a "pouch".

Advantage: Less danger of potential entanglements (fletching and "knob").

This is awesome man! This looks safer.

[919h]

It's great !
These darts are perfectly suited to the ammo slingshot.
Development opportunities are enormous !

[PandaMan]

after some alterations, I'm finding the single loop to be safe enough. Two loops would make it take slightly longer to reload.
I've just changed to different bands. I don't know what rubber it is, but it's awesome. It has a really low draw weight and I shoot butterfly with it using these flechettes. Dan sent me this rubber, so I'll ask him what it is.

[CB900SS]

You guys are insane! I can't wait for the video!!