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formech_1372:formech_1372 [2020/06/17 01:50] – formlab | formech_1372:formech_1372 [2023/05/12 01:16] – [Tested mould materials include:] formlab | ||
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- | [Vacuum Forming Guide](https:// | + | === Pre-drying === |
- | ---- | + | * PMMA: 70°C 4 hours |
- | === How much does it cost? === | + | [[https:// |
+ | ---- | ||
- | < | + | ===== Mould tips ===== |
- | startup cost + ( plastic sheet cost * plastic sheet count * material multiplier ) | + | |
- | + | + | |
- | ( machine time (minutes) * machine time cost ) | + | |
- | </ | + | |
- | * startup cost: €2: only when vacuum form machine is used | + | <WRAP center round important 60%> |
- | * plastic sheet cost: cost sheet, including VAT and transportation | + | Moulds should not contain moisture or dust (!) since it could harm the vacuum pump. |
- | * material multiplier: 30%: item cost * 1,3 | + | </ |
- | * machine time cost: €5 per hour (€0, | + | |
- | === Plastic sheet prices | + | * Can the mould be removed after forming? |
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * Include draft angles:\\ {{: | ||
+ | * Can the vacuum reach all pockets? | ||
+ | * {{: | ||
+ | * Can it withstand the pressure? | ||
+ | * Can it withstand the heat? | ||
+ | ==== Tested mould materials include: | ||
+ | * **Plaster** | ||
+ | * <color orange> | ||
+ | * **Wood** | ||
+ | * <color orange> | ||
+ | * **PU foam** | ||
+ | * <color orange> | ||
+ | * <color green> | ||
+ | * <color green> | ||
+ | * <color green> | ||
+ | * <color green> | ||
+ | * <color red> | ||
+ | * <color red> | ||
+ | * **3D printed parts** | ||
+ | * <color red> | ||
+ | * Plastic deforms: infill becomes visible if not enough top layers or walls. | ||
+ | * ... | ||
- | PETG CLEAR - FULL (1370 x 660) - 1mm: €13,00 per piece\\ | + | ===== Available sheet materials ===== |
- | PETG CLEAR - WINDOW (500 x 500) - 1mm: €3,90 per piece\\ | + | |
- | PETG CLEAR - WINDOW (500 x 500) - 2mm: €6,63 per piece\\ | + | |
- | PETG CLEAR - WINDOW (500 x 500) - 3mm: €9,62 per piece\\ | + | |
- | VIKUGLAS PMMA XT OPAAL - FULL (1370 x 660) - 3mm: €36,4 per piece\\ | + | {{: |
- | VIKUGLAS PMMA XT OPAAL - WINDOW (500 x 500) - 3mm: €10,4 per piece\\ | + | ==== PETG - Polyethylene terephthalate glycol-modified ==== |
+ | Transparent, glossy surface. | ||
- | ALTUGLAS PMMA GROEN - FULL (1370 x 660) - 3mm: €54,6 per piece\\ | + | ^ Thickness ^ Size ^ Cost (per sheet) ^ |
- | ALTUGLAS PMMA GROEN - WINDOW (500 x 500) - 3mm: €15,6 per piece\\ | + | | 1mm | Large - 1370 x 660mm | €16,10 | |
+ | | 2mm | Large - 1370 x 660mm | €32,20 | | ||
+ | | 1mm | Small - 500 x 500mm | €4,20 | | ||
+ | | 2mm | Small - 500 x 500mm | €7,14 | | ||
+ | | 3mm | Small - 500 x 500mm | €10,36 | | ||
- | ALTUGLAS PMMA LICHTBLAUW | + | ---- |
- | ALTUGLAS PMMA LICHTBLAUW | + | |
- | ALTUGLAS PMMA DONKERBLAUW | + | {{: |
- | ALTUGLAS | + | PMMA samples |
+ | ==== PMMA - Poly(methyl methacrylate) ==== | ||
- | ALTUGLAS | + | PMMA is also known as Acryl. It has a glossy surface. |
- | ALTUGLAS PMMA GEEL - WINDOW (500 x 500) - 3mm: €15,6 per piece\\ | + | |
- | ALTUGLAS PMMA CRÈME - FULL (1370 x 660) - 3mm: €54,6 per piece\\ | + | ^ Color ^ Light ^ Thickness |
- | ALTUGLAS PMMA CRÈME | + | | White | translucent | 3mm | large - 1370 x 660mm | €39,20 | |
+ | | White | translucent | 3mm | small - 500 x 500mm | €11,20 | | ||
+ | | Green | transparent | 3mm | small - 500 x 500mm | €16,80 | | ||
+ | | Light blue | translucent | 3mm | large - 1370 x 660mm | €58,80 | | ||
+ | | Light blue | translucent | 3mm | small - 500 x 500mm | €16,80 | | ||
+ | | Dark blue | transparent | 3mm | large - 1370 x 660mm | €58,80 | | ||
+ | | Dark blue | transparent | 3mm | small - 500 x 500mm | €16,80 | | ||
+ | | Yellow | transparent | 3mm | small - 500 x 500mm | €16,80 | | ||
+ | | Cream | transparent | 3mm | large - 1370 x 660mm | €58,80 | | ||
+ | | Cream | transparent | 3mm | small - 500 x 500mm | €16,80 | | ||
- | PS WIT 900 glans/mat 1mm 2000X1200: €18,226 per piece\\ | + | ---- |
- | PS WIT 900 glans/mat 1,5mm 2000X1200: €26,819 per piece\\ | + | |
- | PS WIT 900 MAT/MAT 4mm 2000X1000: €45,30 per piece \\ | + | |
- | PS ZWART 840 MAT/MAT 1mm 2000X1200: €20,49 per piece\\ | + | |
- | PS ZWART 840 glangs/mat 1,5mm 2000X1200: €32,67 per piece\\ | + | |
- | PS ROOD 173 MAT/MAT 1mm 1200X1200: €20,49 per piece\\ | + | {{:formech_1372: |
- | PS ROOD 173 glans/mat 1,5mm 2000X1200: €32,67 per piece\\ | + | polystyrene samples |
- | PS GROEN 843 MAT/MAT 1,5mm 2000X1200: €31,59 per piece\\ | + | ==== PS - Polystyrene ==== |
+ | Uncut sheets. These can be used for the large and small forming area. | ||
- | PS BLAUW 5010 glans/mat 1,5mm 2000X1200: €32,67 per piece\\ | + | ^ Color ^ Surface finish |
+ | | white | matte / glossy | 1mm | 2000X1200 | €19,63 | | ||
+ | | white | matte / glossy | 1,5mm | 2000X1200 | ||
+ | | white | matte / matte | 4mm | 2000X1000 | €63,42| | ||
+ | | black | matte / matte | 1mm | 2000X1200 | €22,06 | | ||
+ | | black | matte / glossy | 1,5mm | 2000X1200 | €35,19 | | ||
+ | | red | matte / matte | 1mm | 2000X1200 | €22,06 | | ||
+ | | red | matte / glossy | 1,5mm | 2000X1200 | €35,19 | | ||
+ | | green | matte / matte | 1,5mm | 2000X1200 | €34,03 | | ||
+ | === How much does it cost? === | ||
- | ---- | ||
+ | startup cost + ( plastic sheet cost * plastic sheet count * material multiplier ) | ||
+ | + | ||
+ | ( machine time (minutes) * machine time cost ) | ||
- | === PMMA 3mm === | ||
- | * heater 75% en 80% | ||
- | * 230 sec heating (no longer) | ||
- | * 60 sec cooling | ||
- | * --> Worked reasonably well | ||
- | * --> This is lower heat for a longer period | ||
+ | * startup cost: €2: only when vacuum form machine is used | ||
+ | * plastic sheet cost: cost sheet, including VAT and transportation | ||
+ | * material multiplier: item cost * 1,4 | ||
+ | * machine time cost: €8 per hour (€0, | ||
- | === Medium Gauge Film (0,15mm) === | ||
- | * profile: 1mm PET (heater 85%) | ||
- | * heating: 8 seconds | ||
- | * vacuum: manual operation: start-stop technique to avoid holes if there are large cavities | ||
- | |||
- | ---- | ||
===== Materials allowed in Formlab ===== | ===== Materials allowed in Formlab ===== | ||
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* **Forming temp range**: '' | * **Forming temp range**: '' | ||
* **Conclusion**: | * **Conclusion**: | ||
- | |||
- | |||
- | |||
---- | ---- | ||
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* // | * // | ||
* // | * // | ||
+ | * **Bubble moulding**: The table should be lowered. If it's in the up-position, | ||
===== Clamping tips for high gauge sheets ===== | ===== Clamping tips for high gauge sheets ===== | ||
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* Check you have even pressure on the clamping on each side.\\ {{: | * Check you have even pressure on the clamping on each side.\\ {{: | ||
+ | |||
+ | ===== Machine presets ===== | ||
+ | |||
+ | ==== PS ==== | ||
+ | * 1mm (Experimental v2) | ||
+ | * Power: 70% | ||
+ | * Heating: 45 seconds | ||
+ | * 2.5mm (Experimental v2) | ||
+ | * Power: 70% | ||
+ | * Heating: 85 seconds | ||
+ | |||
+ | ==== PETG ==== | ||
+ | * 2mm (OK) | ||
+ | * Power: 70% | ||
+ | * Heating: 70 seconds | ||
+ | |||
+ | ==== PMMA ==== | ||
+ | * 3mm | ||
+ | * pre-dry: 4 hours at 70°C (between 70-80°C): no blisters | ||
+ | * If using the window: add shims: 3 on each side. | ||
+ | * heater 70% (and 75% at the edges) | ||
+ | * 125 sec heating | ||
+ | * (without peeking in between) | ||
+ | * This results in ±168°C: nice and flexible. | ||
+ | * Sheet forming temperature: | ||
+ | * 60 sec cooling | ||
+ | |||
+ | |||
+ | ==== Medium Gauge Film ==== | ||
+ | * 0,15mm | ||
+ | * profile: 1mm PET (heater 85%) | ||
+ | * heating: 8 seconds | ||
+ | * vacuum: manual operation: start-stop technique to avoid holes if there are large cavities | ||
+ | |||
+ | ---- | ||
===== Troubleshooting ===== | ===== Troubleshooting ===== | ||
- | === Sheet pulls itself out of the clamping frame === | + | ==== Preset loading gives wrong values ==== |
+ | |||
+ | Reason of problem: touch screen input is too fast for the slow computer (PLC) | ||
+ | |||
+ | Fix: | ||
+ | * **Use firm, deliberate presses with your finger** (not a stylus or fingernail). | ||
+ | * Don’t try to be too fast. | ||
+ | |||
+ | |||
+ | ==== Sheet pulls itself out of the clamping frame ==== | ||
// | // | ||
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// | // | ||
- | === Blisters appear on the surface === | + | ==== Blisters appear on the surface |
There is moisture in the sheet. At the point the blisters appear, the sheet is not hot enough to form yet. You'll need to dry the sheet or switch to a non hygroscopic material. | There is moisture in the sheet. At the point the blisters appear, the sheet is not hot enough to form yet. You'll need to dry the sheet or switch to a non hygroscopic material. | ||
+ | ==== Pre-stretch button does nothing ==== | ||
+ | * Turn off air supply | ||
+ | * Turn off Formech | ||
+ | * Wait ±1 minute and turn Formech back on. | ||
+ | * If you can hear the relay click, it works and the air supply can be opened again. | ||
+ | |||
+ | ==== Heater timer doesn' | ||
+ | * Enable the heater. (The timer doesn' | ||