Thanks TheGoofy for that well constructed device!
I printed it with best quality (layer high 100µm). It has been 27 houers in the making...
I have some improvement suggestions and hints:
I had problems to clip parts together and use the vice. PLA is resistant against oil. So take some for all moveable parts (particulary thread and gears). Now it's sliding soft ;-)
The thread seems to be metric. But it is no locomotor thread. It would be better to use a trapezoid thread. So you have a bigger pitch and don't need to spin so often the knurled screw for same translational movment.
thanks a lot ;)