I suggest device for sharpening hacksaws on wood. It is easy to manufacture and very convenient, made in haste. The working "table" leans back to view the sparkles at the ends of the teeth during grinding, which should not remain. You can sharpen one side of the right and left tooth incisors. For a better fit of the hacksaw blade, the handle can be removed. Files or files can be used depending on the size of the teeth.
The device can be used on your knees, screwed to a table, stool or hemp, as you wish.
I recommend that before you start sharpening, first correct the "divorce" if necessary for hacksaws with medium and large teeth. I make a divorce with small pliers and bring it to the desired width of the divorce, flattening it on a flat hard surface, gently tapping the overhanging TEETH with a hammer.
Acceptable 1.5 mm spacing between right and left tooth. Well, it's like someone.
I want to caution: when sharpening, the eyes tighten very much. Do not forget to give them
rest in short breaks.