| Chatter marks |
Wheel too hard |
Use softer wheel |
| Spindle material not rigid enough |
Replace spindle |
| Defective belt |
Replace belt |
| Wheel out of balance or truth |
Balance and/or true wheel...avoid use of bushed wheel |
| Dust or other particles inside wheel pulley motor |
Clean inside surface of pulleys |
| Worn spindle machine not on solid foundation |
Replace spindle - insure machine is properly aligned and not adjacent to heavy vibrating machines |
| Wheel loading (metal lodged in wheel pores) |
Wheel too fine |
Use coarser grit wheel |
| Wheel too hard |
Use softer grade wheel |
| Wheel too finely dressed |
Give a more open dressing to wheel |
| Poor coolant |
Increase supply and clean coolant |
| Insufficient wheel breakdown |
Increase work and traverse speeds |
