The stock was cut almost to length on the bandsaw and trimmed to 3" as called out in the plan. This is the 2nd time I'm hitting the exact dimension - a real boost of confident. Wishing for more as I progress...
|Redoing the drawings with the bottom right corner of the workpiece as datum.|
|The stock was held in the vise and carefully tapped down to ensure full contact on the parallels beneath. The layout lines can be seen in the pic. No punch mark this time as advised in the forum.|
|Measuring the tip of the Proxxon Edge Finder. It actually measures 0.2", kind of strange from Proxxon which has everything else in metric.|
|Finding the edge in Y axis. The table was moved over by half of the tip of the Edge Finder to zero the spindle axis to the edge of the workpiece. X was next.|
|Drilling the holes using 1/4" drill.|
|Begin milling the slot with a 1/4" slot drill (or 2 flute endmill as the American call it). I started with depth of 0.2mm per pass but went on to 0.5mm.|
|Slot done. The 3/8" slot 1/4" deep was next.|
|A piece of scrap used as depth stop for the Z axis. Wanted to use machinist clamp for this but I couldn't locate the other 2 pieces I bought.|
|Done! Time to test if the cap screw will fit.|
I left the setup alone when I ended the session. A trip to Chan Man Lee is necessary to get a new piece of 3/8" slot drill and probably another 4 machinist clamps of the same size as the current ones. I may have a problem using the machinist clamps as stops for the Y axis as I'll have to clamp on the dovetail. This may deform the dovetail, which is aluminium. Maybe my next project should be making proper stops for all the axes. If anyone has a good set of drawings of mill stops for Sherline Mill, please share them with me. Meanwhile, I look at JerryG's for the lathe. The concept should be the same.
Till the next session, be blessed.