3D-Job - Excalibur Crossbow Stock

[DJPicasso (DJ)]

Hi,

I want to present you my current 3D-Job. It is not finished yet but I have realized a couple of steps so I think I can show the first steps and I will give you some updates in the next couple of days or week … if you like

My current project is an “Excalibur Crossbow Stock”.

Excalibur is a canadian crossbow manufacturer who is constructing really fantastic crossbows.
My crossbow is a “Excalibur 365 Micro black limited edition” (for the specialists: with ArcheropterX Hunter 9 Scope, R.E.D.S suppressors and a couple of other accessories)

So here is the original:

Although I like the “clean” and black stock, I would like to change a litte bit the design of the crossbow.
So I have started to “draw” and experimenting a little bit in FreeCAD.

This was the result.To be honest it was quite a hard challenge to “draw” it in FreeCAD, but the result is …. let’s say …. presentable

To not waste the “expensive” wood, I created 3 or 4 prototype out of polystyrene, to get exactly the right dimensions and that the body of the crossbow will fit correctly in the stock!

I have modified the back (at the shoulder) so that this stock became 2.5 cm (1 inch) longer.

This was the last “prototype” I have realized.

You can see that left and right sides are different from each other. The stock will be for right-hander use.

After the last prototype I started with the wood.

Material: Makassar Ebony
Dimensions: 620 x 220 x 60 mm
Drill: 6mm flat
Milling duration: ca. 12 - 13 hours (even with a speed of 1.000 - 1200 mm/min) but I wanted to get sure, that the surface would be quite fine.
I had to run the milling in 4 steps, 2 for each side because the length of my milling bed is only usable for 50 cm.

So now I got:

Original, first design on paper, last prototype and the 1st step of the wodden stock.

It is really COOL! and I am existed, for the next steps:

• Slot for the crossbow body
• grind/burnish with (180/300/400/600/800/1000) paper
• oil / wax the wood

So - of course - still something to do but the base is … (in my opinion) fantastic

… to be continued

[jeyeager (Jason Yeager)]

That ebony looks fantastic. Nice project.

[vicious1 (Ryan)]

Blender and a 3D milled project. Top tier skills!

[Tokoloshe (Philipp)]

You are really crazy… But the good kind of crazy, what an amazing project. Phew.

How do you take the crossbow with you? Always in a case right, because they are rated firearms that can hold a charge so aren’t open carry like bows (which is a weird law…).

[timonjkl (Tim W)]

Beautiful work and design except it wrong handed . Wonderful wood and beautifully detailed carving

[timonjkl (Tim W)]

. Most places here US as long as a bolt is not strung they can be carried with no case but read your local restrictions carefully or you may end up in a gated community not of your choice

[Tokoloshe (Philipp)]

In Germany you can’t.

[DJPicasso (DJ)]

I have a special “permission”

[Tokoloshe (Philipp)]

You are a hitman, I knew it!!

[DJPicasso (DJ)]

@timonjkl

Beautiful work and design except it wrong handed .

To create the same stock for left-hander is only 1 click in FreeCAD: “mirror”

[ClineDesigns (Mike)]

fantastic work all around!! From the 3D model to choice of wood and overall style, you killed it!

[DJPicasso (DJ)]

OK, so here are the next steps, but from now on, everything’s a “hand-job” .

1. all markers from milling need to be checked and “destroyed” using sandpaper 120
   => most important step to get all signs out of the wood, now!

And in parallel a couple of things need to be modified for the use and design.
On the left side the following areas need to be changed:

On the right side similar:

Left side modifications:

Right side modifications:

Of course it is only “pre-work” because of the sandpaper (120).

So now, all individual markers are coming out, very nice to see!

[Bigfoot16 (Dan Harley)]

Man that looks slick. Always like the look of machined laminated wood.

[vicious1 (Ryan)]

Amazing

[Tokoloshe (Philipp)]

@Bigfoot16

Always like the look of machined laminated wood.

It’s not laminated, it’s extremely expensive exotic wood.

/edit: I was wrong, stop liking it!

[DJPicasso (DJ)]

Hi Philipp,

normally I agree, but in this special case Dan is right!

I am using so called SaRaiFo Makassar. SaRaiFo = Save the Rain Forrest
This is Makassar veneering, laminated and industrialized pressed to get a high strength without “errors” inside the wood.

So this block I am using is also expensive but not as expensive like original Makassar.
Only to get a feeling about pricing, original Makassar, such a block, will be something between 600 - 1.000 Euro (only the wood). SaRaiFo Makassar is round about 100 - 150 Euro.

… but from the optical point of view, there is no big difference

[Tokoloshe (Philipp)]

Oh, okay. Sorry @Bigfoot16.

[DJPicasso (DJ)]

OK ho finito!

I love it!

[Bigfoot16 (Dan Harley)]

That turned out great!

[Tokoloshe (Philipp)]

This is incredible. You are just so much more ballsy than me. I can remember when you asked me about 3D-milling the swords (katanas?) and I was like… I don’t know, I’d do it… Because I had never done 3D milling and I still haven’t… And look at you go. Really great to see.