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Clarke 1820
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Materials and Settings
The Clark manual only says "2.0mm polystyrene will take approximately 60 seconds. PVC and cast acrylic will take longer". The following was complied from information in the Formech guide (30sec x 2mm matches Clarks' 2mm @ 60sec).
VIVAK-PETG-Fabrication-Guide (2.2MB PDF)
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| Material | Formability | Heat sec/mm | notes |
| Co-Polyester (PETG) | Very Good | 30 | |
| Polystyrene (PS) | Very Good | 30 | |
| PVC | Good | 30 | tendency to web |
| ABS | Good | 40 | predry |
| Polycarbonate (PC) | Good | 60 | predry |
| Polypropylene (PP) | Difficult | 50 | |
| Polyethylene (PE) | Difficult | 50 | PE foam forms well |
VIVAK-PETG-Fabrication-Guide (2.2MB PDF)
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