ok a bit about my new addition its a rongfu45 clone which I hope to convert to cnc one day
its 3phase ran off a cheap ebay inverter which allows me to run it up to nearly double its rated speed
and down to about 10 rpm…
anyways the reason for using the 18650’s was the tested to 3400 mah comparedto the 21700 wich are rated
at 4000 not much improvement for size / weight.
a bit of machining on the pine battery holder
with switch ,driver, batts,and charging board.
now to make the covers…
Yep. Stainless will eat the end mills fast if you don’t keep it cool. Seen a 1” rougher go round a corner on a part and in a matter of a couple inches of feed start glowing red and disintegrate before i could stop the machine (CNC). It was on a proven part that had run several successfully already so I knew my speed/feeds were good.
The trick many times with stainless is once you start a cut don’t stop. Stainless will work harden if you allow it to cool for even seconds leaving something almost like a case hardened effect on the remaining material around the cut.
Absolutely. The part I mentioned had to be discarded because of this even though the final dimensions were not impinged on when the tool failed. It became too hard.
new addition to the shed ,I got my fathers power hacksaw, as he unfortunately cant use it any more.
fairly slow about 20 mins to cut this 50mm square. this piece will hold the two reflectors / leds
Its good to see you converted with the DRO. A whole new world opens up with it.
Your block looks rather hollow from what one can see from the picture in the vice.