mcmaster:lapping
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| mcmaster:lapping [2015/09/26 21:12] – mcmaster | mcmaster:lapping [2015/09/26 21:39] (current) – mcmaster | ||
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| * Kimwipe: 0.056 mm | * Kimwipe: 0.056 mm | ||
| * Must be < stencil thickness | * Must be < stencil thickness | ||
| + | |||
| + | Lapping jig stencil holder? | ||
| + | * Should the stencil itself by held by a retention ring that slides up and down? | ||
| + | * For now just lightly wax it on | ||
| + | * How much height will this add? | ||
| + | * Propose make slightly larger than sample holder and wax along top edge | ||
| + | |||
| + | Stencil cutting holder | ||
| + | * Hold stencil in place on milling machine | ||
| + | * Lapping surface 2" => 50.8 mm diameter | ||
| + | * 50.6 mm measured | ||
| + | * Lapping jig cavity: 57.1 mm | ||
| + | * Lapping stencil target diameter: 54 mm | ||
| + | * Add 1.5 mm to each side w/ 1.5 mm clearance | ||
| + | * Support at least entire cavity size + 1/8" endmill => 57.1 + 1/8 * 25.4 = 60.3 mm | ||
| + | * Add some good clearance so I don't mill the jig: 5 mm each side => 70 mm total ID => 2.75" | ||
| + | * 0.5" each side => 3.75" Al square stock | ||
| + | * 1.5" from sherline t-slot to slot | ||
| + | * 10-32 (0.1900" | ||
mcmaster/lapping.1443301957.txt.gz · Last modified: 2015/09/26 21:12 by mcmaster