To answer all those questions from this forum and emails. Yes, In fact, I can boast my OCD-ness by work from home in my own workshop. With my friend’s CNC workshop, I can’t always interrupt the operator’s work.
This mini milling machine has XY accuracy of 0,02mm and Z accuracy of 0,025mm. Cutter holder used are ER16 and ER32 collet with 0,008mm run out tolerance. Good enough for me.
This is why I spent great deal of time making the work piece jig: repeatable batch MANUAL processing
Those who familiar with tapping small screw threads will appreciate this work. A pitch perfect rolled thread (yes rolled, not cut). I know it’s just a common M2x0,4 screw thread, what’s so special about it? Take a look closer…
Two screw threads are precisely located within 0,01mm accuracy. They were carefully chamfered for flareless screw threads. And the most important thing is they are made unusually deep (3,25mm effective threads!) for such a headlamp, with very close fit tolerance. I made this because most BLFers who bought these H04RC would change the MCPCB often. Deep screw thread makes sure you can get enough clamping force to secure the MCPCB and lessen the thread failure.
[Clemence]