06-17-2015, 08:08 PM
Latest update: I had bought a quality diamond penetrator for Rockwell C scale readings, from am eBay seller for $45 shipped and it arrived today. I could have bought a Chinese made OE style (not sure if it would be exactly the same as the OE) for just over $30 from eBay sellers in Hong Kong or mainland China, but I'm wary of sending money off that far.
This evening I headed over to the shop to see if I could calibrate the tester to the standards supplied with it. Unfortunately that was not successful. The instruction manual is sparse on information about set up and calibration but I did the best I could. I did get it to repeat readings on the 47Rc test sample, but when I tested the 30Rc sample it was way off.
Checking around the interweb I did find a story from one fellow who has the same machine and also couldn't get it to repeat. I guess I'll have to follow his lead and take it all apart, upgrade a few pieces and reassemble before I'll be able to trust it's readings. Looks like another project for the back burner. Oh well.
This evening I headed over to the shop to see if I could calibrate the tester to the standards supplied with it. Unfortunately that was not successful. The instruction manual is sparse on information about set up and calibration but I did the best I could. I did get it to repeat readings on the 47Rc test sample, but when I tested the 30Rc sample it was way off.
Checking around the interweb I did find a story from one fellow who has the same machine and also couldn't get it to repeat. I guess I'll have to follow his lead and take it all apart, upgrade a few pieces and reassemble before I'll be able to trust it's readings. Looks like another project for the back burner. Oh well.