What Chinese businessmen will not come up with to fill their wallet, due to the curiosity of a common man in the street. So I took their bait for a very small amount and ordered an interesting enlarger functionality of a simple grinder, which, among other things, is designed for processing metal blanks and products.
Unpacking the parcel is not interesting for every reader, I put it in the gallery for this photo >>>, do not forget to leaf through them >>>
As a result, we have such a constructor, build it yourself:
The first step I decided to put in place, the chain drive sprocket.
But unfortunately, on the axis of the grinder, not a native star decided not to be installed. The thickening at the base interfered with this action.
There are two ways out: To bore the star of the drive from the nozzle to the desired size, for this you need a turner or a drill of the required diameter. Or grind off the axis of the grinder by millimeter. Which was successfully done with the included drive and an abrasive stone to sharpen the knives. The file from such a load quickly sat down. Apparently made from raw meat.
Then it remains only to put the sprocket in its place with the grooves and tighten the flange intended for tightening the disk.
We install the "case" with the oil can, in the place where the casing fits and tighten with two screws.
The next step is to mount the bar and chain on the attachment.
We mount the plastic casing, after setting the chain tensioner and tighten the bolts along with an impromptu hand guard.
That's all, the device for cutting firewood, from the usual 125th grinder is ready.
After assembly, I tested this device, the nozzle really fulfills its function. Perfectly cuts thick branches. My grinder has a power of 1100 watts. Interact with her without stress. Honestly, I was pleasantly surprised how she saws. And with a "smile from ear to ear" I walked around the construction site while playing with an interesting apparatus from the Middle Kingdom. I will leave a link to it, from the aliexpress platform, who are interested take a look here.
And here is a short author's video of how it works, take a look: