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| 1 | +# Prusa 3D Printers |
| 2 | + |
| 3 | +<!-- There is no prescribed structure, but here is a suggestion: --> |
| 4 | + |
| 5 | +## Safety |
| 6 | + |
| 7 | +### PPE |
| 8 | +* None necessary during ordinary use. |
| 9 | + |
| 10 | +### Risks |
| 11 | +* Burn from heated bed or hot-end |
| 12 | +* Fire started due to heated bed or hot-end |
| 13 | +* Body part or clothing caught in printer mechanism |
| 14 | +* Hazardous gasses |
| 15 | + |
| 16 | +<!-- Usually, all of the control measures in the risk assessment should be mentioned here --> |
| 17 | + |
| 18 | +## Startup checks |
| 19 | +* Filament loaded is expected type |
| 20 | +* Bed and hotend can move freely |
| 21 | +* Area around printer is clear |
| 22 | +* Bed is clean and clear |
| 23 | +* Correct nozzle is installed |
| 24 | + |
| 25 | +## Usage |
| 26 | + |
| 27 | +### Starting the machine |
| 28 | +* The printer should be left powered on and passive. If it is not, check with tools@edinburghhacklab.com that it can be powered on safely. |
| 29 | +* Wipe the bed down with isopropyl alcohol and blue roll. Do not touch the bed after this process has been completed. |
| 30 | +* Select your file using the menu on the printer. |
| 31 | +* Observe the printer begin the print. The first layer should always be watched in case of defects or malfunction. |
| 32 | + |
| 33 | +### Stopping the machine |
| 34 | +* The printer should stop and cool normally when the print is finished. |
| 35 | +* If the print must be cancelled, do so using the menu. Only cancel your own prints, or the prints of others with their express permission. |
| 36 | +* If the printer begins sounding an alarm, press the `Reset` button on the control panel until it restarts. |
| 37 | + |
| 38 | +<!-- incl estops if necessary --> |
| 39 | + |
| 40 | +### General |
| 41 | +* Keep your hands clear of the heated bed and hotend while prints are in progress to avoid pinching and burns. |
| 42 | + |
| 43 | +### Materials |
| 44 | +* Only use the following materials from reputable sellers: |
| 45 | + * PLA (including matte PLA and PLA+) |
| 46 | + * PETG |
| 47 | + * TPU |
| 48 | +* Do not use materials if: |
| 49 | + * they have inclusions, such as Glow-In-The-Dark, carbon fibre (CF), or glass fibre (GF) |
| 50 | + * they have previously caused clogs or jams in printers in the lab |
| 51 | +* If in doubt, ask. |
| 52 | + |
| 53 | +### Cleaning up |
| 54 | +* Remove your print and any skirt or purge lines from the bed. |
| 55 | + |
| 56 | +## Maintenance |
| 57 | + |
| 58 | +### General |
| 59 | +* Contact tools@edinburghhacklab.com if you encounter any of the following: |
| 60 | + * repeated build failures with the same file, filament and failure mode |
| 61 | + * loud screeching or grinding sounds |
| 62 | + * alarms necessitating a printer reset |
| 63 | + |
| 64 | +## Other |
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