Metric Solutions
Since this is an inch lathe, none of the solutions are completely accurate for millimeter pitches, however, many of them will be close enough (depending upon the intended purpose).
gear order is from spindle to leadscrew
":" indicates the gears revolve on the same axis
"-" indicates the gears are meshed
| Desired Pitch (mm) | Actual Pitch (mm) | Pitch Error | Configuration |
| 0.10 | 0.123 | 23.47% | 80:30-90:35-100 |
| 0.20 | 0.200 | 0.22% | 66:35-75:30-90 |
| 0.30 | 0.300 | 0.05% | 100:68-72:30-80 |
| 0.40 | 0.400 | 0.04% | 90:70-72:35-80 |
| 0.50 | 0.500 | 0.05% | 48:30-100:68-72 |
| 0.60 | 0.600 | 0.04% | 48:35-100:70-72 |
| 0.70 | 0.700 | 0.01% | 48:50-72:40-70 |
| 0.80 | 0.800 | 0.04% | 40:35-90:70-72 |
| 0.90 | 0.900 | 0.01% | 70:75-72:50-70 |
| 1.00 | 1.000 | 0.04% | 72:70-48:35-60 |
| 1.10 | 1.100 | 0.04% | 66:70-35:30-70 |
| 1.20 | 1.200 | 0.04% | 30:35-80:70-72 |
| 1.30 | 1.300 | 0.04% | 75:72-60:48-50 |
| 1.40 | 1.399 | 0.05% | 72:70-80:68-50 |
| 1.50 | 1.501 | 0.04% | 72:70-80:70-48 |
| 1.60 | 1.601 | 0.04% | 72:70-80:70-45 |
| 1.70 | 1.701 | 0.05% | 70:75-50:45-48 |
| 1.80 | 1.799 | 0.05% | 40:45-75:68-48 |
| 1.90 | 1.901 | 0.04% | 70:75-70:66-45 |
| 2.00 | 1.999 | 0.05% | 70:70-72:68-40 |
| 2.10 | 2.101 | 0.05% | 68:72-48:45-40 |
| 2.20 | 2.199 | 0.04% | 66:60-68-35 |
| 2.30 | 2.309 | 0.40% | 66:72-70:70-40 |
| 2.40 | 2.399 | 0.05% | 72-30:68-80 |
| 2.50 | 2.492 | 0.31% | 66:68-50-35 |
| 2.60 | 2.594 | 0.23% | 66-68:100-48 |
| 2.70 | 2.709 | 0.35% | 60-50:72-45 |
| 2.80 | 2.801 | 0.05% | 60-68:90-40 |
| 2.90 | 2.903 | 0.10% | 70-50:60-35 |
| 3.00 | 2.999 | 0.05% | 66-48:68-40 |
| 3.10 | 3.104 | 0.14% | 60:66-68-30 |
| 3.20 | 3.199 | 0.05% | 66-60:68-30 |
| 3.30 | 3.299 | 0.04% | 60-66:90-35 |
| 3.40 | 3.387 | 0.39% | 72-35:70-50 |
| 3.50 | 3.483 | 0.47% | 60-50:72-35 |
| 3.60 | 3.629 | 0.79% | 80-30:45-35 |
| 3.70 | 3.725 | 0.68% | 70-50:66-30 |
| 3.80 | 3.810 | 0.26% | 75-50:90-40 |
| 3.90 | 3.881 | 0.50% | 68-48:66-30 |
| 4.00 | 3.998 | 0.05% | 66-48:68-30 |
| 4.10 | 4.112 | 0.30% | 66-40:68-35 |
| 4.20 | 4.233 | 0.79% | 70-40:60-30 |
| 4.30 | 4.301 | 0.01% | 70-45:80-35 |
| 4.40 | 4.410 | 0.22% | 70-48:75-30 |
| 4.50 | 4.516 | 0.35% | 66-45:72-30 |
| 4.60 | 4.657 | 1.23% | 70-30:66-40 |
| 4.70 | 4.704 | 0.08% | 70-48:80-30 |
| 4.80 | 4.798 | 0.05% | 72-30:68-40 |
| 4.90 | 4.939 | 0.79% | 75-30:70-40 |
| 5.00 | 5.017 | 0.35% | 70-45:80-30 |
| 5.10 | 5.080 | 0.39% | 100-30:72-40 |
| 5.20 | 5.292 | 1.76% | 70-40:75-30 |
| 5.30 | 5.292 | 0.16% | 100-30:75-40 |
| 5.40 | 5.376 | 0.45% | 90-45:100-35 |
| 5.50 | 5.483 | 0.31% | 72-35:68-30 |
| 5.60 | 5.644 | 0.79% | 70-35:70-30 |
| 5.70 | 5.644 | 0.97% | 72-35:70-30 |
| 5.80 | 5.806 | 0.10% | 75-35:72-30 |
| 5.90 | 5.880 | 0.35% | 90-48:100-30 |
| 6.00 | 6.048 | 0.79% | 80-35:75-30 |
| 6.10 | 6.048 | 0.86% | 100-35:75-30 |
| 6.20 | 6.272 | 1.15% | 90-45:100-30 |
| 6.30 | 6.272 | 0.45% | 90-45:100-30 |
| 6.40 | 6.350 | 0.78% | 100-30:90-40 |
| 6.50 | 6.451 | 0.76% | 100-35:80-30 |
| 6.60 | 6.451 | 2.26% | 100-35:80-30 |
| 6.70 | 6.451 | 3.72% | 100-35:80-30 |
| 6.80 | 6.451 | 5.14% | 100-35:80-30 |
| 6.90 | 7.257 | 5.18% | 100-35:90-30 |
| 7.00 | 7.257 | 3.67% | 100-35:90-30 |
| 7.10 | 7.257 | 2.21% | 100-35:90-30 |
| 7.20 | 7.257 | 0.79% | 100-35:90-30 |
| 7.30 | 7.257 | 0.59% | 100-35:90-30 |
| 7.40 | 7.257 | 1.93% | 100-35:90-30 |
| 7.50 | 7.257 | 3.24% | 100-35:90-30 |