User:Mct/scale-machinist-square

plans for the scale square, adapted from starrett's plans for the full-sized version

i intend to try making 1/10-scale starrett no. 20 6" square

construction overview

a sketch of the steps i plan on taking in the square's manufacture

1. machine square stock & blade blanks out of annealed a2
   • stock blanks to a bit above final dimension, to allow for sanding
     • include slit for blade
   • blade blanks to same thickness as stock blanks, with extra area for clamping milling to thickness
2. harden blanks
   • clamp during hardening to minimize warp?
3. hard-mill blade blanks to rough dimension
   • first to proper thickness, against parallel
   • then to proper area
     • need to be careful with work holding so it doesn't crack
   • to a bit above final dimension, to allow for sanding
4. sand to final dimension, nice finish
   • glue to block to make them easier to manipulate?
     • means they should be sanded in groups
5. fix blade into stock slit
   • adhesive? brazing?
6. make storage container
   • stack of 1/8" masonite, for ease of construction?
   • actually try to replicate original boxes on shopbot?
     • will have trouble with scaling the hinges