Chain Saw Chopper

woodlandfarms · Jun 18, 2014

OK, this is not me. Ingenious, yet a bit scary.

LiveLeak.com - Clever Chainsaw Attachment

R W · Jun 18, 2014

Ideas OK as long as you keep your hands clear.

300UGUY · Jun 18, 2014

A modern version of a buzz saw. I like the throttle linkage. I think that took a bit of thinking to do, you need to locate and secure the saw, and the idea of hanging it on the cart edge, is very good.

oosik · Jun 18, 2014

Great way to take care of a lot of limbs. Like has been said - watch out for your hands. After use for a while, I can see a potential problem of the rhythm of cutting the limbs and your hands becoming involved with the blade.

Renze · Jun 20, 2014

oosik said:
After use for a while, I can see a potential problem of the rhythm of cutting the limbs and your hands becoming involved with the blade.

Same counts for my Mottimaster, but it has a way bigger capacity:
https://www.youtube.com/watch?v=kE6TXEe3l6g

Baby Grand · Jun 21, 2014

The saw jig looks like a quick way to sever limbs - be they of the wood or flesh variety.
Ingenious mechanism, but anything that separates the operator from direct control of the saw, as this does, makes me a little anxious.
Same reaction I have to all the recent investment in "driverless cars" by big companies with more money than sense.
That Mottimaster, on the other hand, looks very cool.

Sgcustom · Jun 22, 2014

I like the idea, but can't see it any good for big wood. The mottimaster is amazing! I want one...

Renze · Jun 22, 2014

Sgcustom said:
The mottimaster is amazing! I want one...

when you push it hard in heavy oak, a ground drive PTO (to reverse it through the tractor transmission) is a MUST !!
And despite shearbolts i've ripped PTO tubes open over the full length, powering it. Its human nature to push the machine to its dimensional limits (poking whole trees in the hole so the tree has nowhere to split and the axe jams stuck in the tree) because its so much faster than sawing and splitting...

This is an older model of the original manufacturer (Mottimaster is a licensee)
https://www.youtube.com/watch?v=EenY1zx7zcw

If you pull it to 1800rpm and put 8 inch tree in it at every time the hole is open, you're dead within minutes... But if you could physically keep it up, you get 3 cords an hour, cut and split... We operate it with 2 people, one limb after the other so you can take a breath before the next limb..

jwmorris · Jun 26, 2014

There was a post here a while back that had a few machines that cut short lengths like this and were self feeding. Used blades that counter rotated from one another and both sets met edge to edge that severed the wood into sections. As soon as you stuck the end in the machine you would go to pick up another while it chopped it into sections.

Renze · Jun 26, 2014

jwmorris said:
There was a post here a while back that had a few machines that cut short lengths like this and were self feeding. Used blades that counter rotated from one another and both sets met edge to edge that severed the wood into sections. As soon as you stuck the end in the machine you would go to pick up another while it chopped it into sections.

You mean this: https://www.youtube.com/watch?v=qzPZU1Q5-bY

The idea originates from central europe, mostly Poland and Czechia. We intend to build one next winter, use tractor final drive bull gears to drive the rotors, and put a drum sieve behind it to remove leafs and shreds from the firewood, so we can just push any limb into the machine, and separate the firewood from the trash with the trommel instead of by chainsaw and by hand. Then my mottimaster will be for sale, and someone with a stronger back than me, may feed it

This is a commercially available model from Czechia, its more like what i have in mind. (wood must be small enough to dry but when you make it smaller than needed, its going to cost you capacity and fuel. the energy must go in the stove, not into the tractor that drives the wood machine)
https://www.youtube.com/watch?v=3fZoLVHr0Ys

Diameter of shredded branches, or particles.:
120 mm softwood fresh
100 mm hardwood fresh
80 mm hard wood dry.
Length of received chips: 70-220 mm adjustable
Yield: every 10 seconds a bag full size 57x104cm-0.08m3 (13 bags = 1m3) at 3 personal use.
Weight: 650 kg
Minimum tractor power optimally 50HP 70 hp at 1300 rev / min motor
PTO 1000 rpm / min.
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