ballen
Diamond
- Joined
- Sep 25, 2011
- Location
- Garbsen, Germany
I'm making a set of 3 cast iron laps. These are round, 250mm (10") diameter, about 14kg = 30lbs each. I have flattened the faces on a lathe, and will lap them against each other (Whitworth's method: AB, AC, BC,...) to get them really flat. I have some Timesaver green lapping compound that should work well for this.
My question: I first need to cut "swarf grooves" either on the bandsaw or with a slitting saw. What is a good choice of width, depth and spacing for those grooves? I was thinking width 1-2mm (0.040-0.080"), depth 1mm (0.040"), spacing 12-15mm (0.5-0.6"). Can anyone give me some good advice about this? Or if you have a similar lap which works well, measure it and let me know.
My question: I first need to cut "swarf grooves" either on the bandsaw or with a slitting saw. What is a good choice of width, depth and spacing for those grooves? I was thinking width 1-2mm (0.040-0.080"), depth 1mm (0.040"), spacing 12-15mm (0.5-0.6"). Can anyone give me some good advice about this? Or if you have a similar lap which works well, measure it and let me know.