Loss of length in acrylic once bent under heat
| Thickness | Heating time (mins) | Angle | Loss |
| 2mm | 90° | ||
| 3mm | 1’10” | 90° | - 1.0mm |
| 5mm | 2’30” | 90° | - 2.0mm |
| 8mm | 4’30” | 90° |
Loss of length in aluminium
| Thickness | Angle | Loss |
Loss of length in copper
| Thickness | Angle | Loss |
Max tube size that I can bend = 25mm OD / 21mm ID / 2mm wall
Loss of length in steel
| Thickness | Angle | Loss |
| 25mm tube | 90° | 45mm |
