If time is money to you, I would recommend taking advantage of this option. Out of the box not ready for prime time. The measured yield was close to 0.0045 inch. I'm committed to the work, so I worked on it a little, and now it's working. Collet between tips and facing the back of the chuck. The rear was not flat with significant distortion related to each of the eccentric locking features. The top point is about 0.0018 inches. I blew it and made light cuts until the blue was about 95% clearβ¦
Ordered the first supposedly very nice Chinese cartridge, unfortunately the taper on the back was off the ground and didn't touch the spindle nose taper. was able to use a piece of tape as a spacer and get about 0.001" runout on the nose cone. The film clearly shows the lack of contact. My spindle end-of-stroke measured with an Interapid 0.0001" DTI on the taper is less than 0.0001". Sent it back and ordered a new one hoping it was an accident. The second came, same problem, slightly worse byβ¦
Before I installed the chuck on my lathe, I checked the spindle runout, which was almost zero. I installed a D1-5 collet and checked runout with two indicators. Both indicators indicated that the total runout was less than 1/1000th of an inch. I disassembled the cartridge. Cleaned and reinstalled. I checked the hitting with the third test indicator. The runout was still less than 1/1000th of an inch. Really impressive for a cheap cartridge. Since this cartridge had very mixed reviews at Revain,