Main plate for a frame jig. Compatible with 160x80 vslot extrusion. On the bb axle there is a high pitch thread and scale to adjust the bb width. On the back - angle scale and zero position indicator. Main part is Alu, axle is inox. Axle is ready for backpurge. Two T47 washers and locknuts. ST extrusion (40x40) attachment (extrusion not included). Price is 350euro plus shipping from Warsaw/Poland/EU.
I will be selling also a whole jig with ver 2 of this plate soon.