This project is developed in close cooperation with Progekta Europe P.C.
Appropriate materials
What conditions should the materials fulfil? Which materials are recommended?
The best choice are certified or approved materials for medical applications. For masks that are not to be used in hospitals, suitable plastics with the following requirements are sufficient:
- transparent,
- scratch-resistent,
- non-fogging,
- not absorbing toxic fumes and
- easily disinfectable
The following table lists a few materials that are recommended:
| Material | Materialname | Print requirements (coming soon) | Disinfection method (coming soon) |
|---|---|---|---|
| PLA | Polylactic Acid | -------- | -------- |
| HIPS | High Impact Polystyrene | -------- | -------- |
| PA 12 | Polyamid 12 | -------- | -------- |
| PA 11 | Polyamid 11 (Nylon 11) | -------- | -------- |
| PP | Polypropylene | -------- | -------- |
| PETG | Polyethylenterephthalat | -------- | -------- |
| TPU | Thermoplastic Polyurethan | -------- | -------- |
| PC | Polycarbonate | -------- | -------- |
| ABS | Acrylnitril Butadien Styrol | -------- | -------- |
| ASA | Acrylnitril Styrol Acrylat Copolymer | -------- | -------- |
This project is developed in close cooperation with Progekta Europe P.C.
COVR3D by Think3DDD is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Based on a work at covr3d.think3ddd.de.
Permissions beyond the scope of this license may be available at covr3d.think3ddd.de/contact.
| Print property | V1.12 | V2.03 | V2.08 |
|---|---|---|---|
| material | TPU A95 | -------- | -------- |
| layer height | 0,25 mm | -------- | -------- |
| layer width | 0,38 mm | -------- | -------- |
| extruder nozzle | 0,30 mm | -------- | -------- |
| print speed | 1.800 mm/min | -------- | -------- |
| supports | none | -------- | -------- |
| raft | none | -------- | -------- |
| printing duration | 5 h 22 min | -------- | -------- |
| Object weight | 61 g | -------- | -------- |
*: Our open source publicated masks are not the final versions. There may be extensions / changes due to subsequent improvements. Our masks are currently not medically certified. We cannot assume any liability for the quality of the printed objects. So far there are only studies that suggest protection of others but not the wearer of the mask. The masks only protects if a filter material is inserted. How well the mask protects depends on the filter material and the fit. Please do not forget the other hygiene measures, this mask does not replace them.
