05-25-2014, 05:52 PM
Finished and delivered the surface grinding job, but forgot to take photos. Customer was very happy, though I didn't quite achieve the surface finish I was hoping to get. Close enough that the parts would wring together, which surprised him.
The only problem with the job was that as I was grinding the last one I noticed grinding chips were collecting along a couple of lines in the workpiece. Sure enough, cracks from heat treating. This problem was so bad on the first three he made that the corners broke right off on two of the them and the third had big gaps in the cracks. He's really ticked off at the heat treating vendor because he bought ground 0-1 stock from Starrett, well known to be top quality material and the heat treat vendor ruined them. He called the end user (his customer) and get a pass on the cracked one because it didn't break off and can't be seen in the assembly.
Glad to do the job, though I refused his payment because he's the guy who gave me the Alliant-Prototrak machine for $1500, probably half of it's true value.
The only problem with the job was that as I was grinding the last one I noticed grinding chips were collecting along a couple of lines in the workpiece. Sure enough, cracks from heat treating. This problem was so bad on the first three he made that the corners broke right off on two of the them and the third had big gaps in the cracks. He's really ticked off at the heat treating vendor because he bought ground 0-1 stock from Starrett, well known to be top quality material and the heat treat vendor ruined them. He called the end user (his customer) and get a pass on the cracked one because it didn't break off and can't be seen in the assembly.
Glad to do the job, though I refused his payment because he's the guy who gave me the Alliant-Prototrak machine for $1500, probably half of it's true value.