Differences

This shows you the differences between two versions of the page.

--- equipment:cnc:prusamk4 [2024/07/15 18:24] – samp20
+++ equipment:cnc:prusamk4 [2025/02/18 20:07] (current) – samp20
@@ Line 1: / Line 1: @@
 ====== 3D Printer - Prusa MK4/Mk3.9 ======
+{{ :equipment:cnc:wiki_pic_laser.jpg?nolink&400 |}}
 <callout title="Induction Required" type="danger" icon="true"> This equipment requires an induction prior to use. For your own safety and to avoid damage to the equipment do not attempt to use it until you have been inducted. </callout>
 <callout title="Crush / Entanglement / Burn Hazard" type="warning" icon="true"> This equipment is hazardous to the user or those around them, take care during use.</callout>
+===== Health and Safety =====
+  * Do not touch the nozzle or heatbed when the printer is printing or warming up. The nozzle can reach 300°C and the heatbed can reach over 100°C.
+  * Supervise at least the first few layers of the print and notify on the forum in the "long 3D print notifications" chat if you are going to leave the printer unattended for a significant amount of time.
+  * Report problems on the forum as soon as they arise. Do not attempt to disassemble the 3D printers unless you have been authorised to do so.
 ===== Induction =====
 Inductions for the 3D printers are now available on the member portal (right-hand PC by the electronics bench). Tap your card/keyfob on the reader, select “Manage machine inductions”, and take the 3D printer quiz. You will be shown the padlock code on successful completion.
+===== Etiquette =====
+Only two 3D printers should be used by a member at any one time. If it is especially busy consider using one to be considerate of others.
 ===== Slicing =====
@@ Line 14: / Line 26: @@
 Print files must be sliced specifically for the Mk3.9/Mk4. If you try to slice for the Mk3S you'll get a big red warning telling you that the file is sliced for the wrong printer. **Do not ignore this warning. You will damage the print sheet irreparably**.
+Please use the Input Shaper version with 0.4mm nozzle.
 ===== Filament =====
@@ Line 46: / Line 60: @@
 We have three sheets for our printers.
-  * smooth -- It should only be used for PLA. If you're printing ABS, PETG or FLEX, then you *need* to use the textured sheet.
+  * smooth (PEI) -- It should only be used for PLA. If you're printing ABS, PETG or FLEX, then you *need* to use the textured sheet.
-  * textured -- this is the strongest sheet and is a good choice for general printing in almost any filament. It has slightly lower bed adhesion than smooth when printing PLA, but only slightly. Remember -- you may also need glue stick when using sticky filaments.
+  * textured -- this is the strongest sheet and is a good choice for general printing in almost any filament. It has slightly lower bed adhesion than smooth when printing PLA, but only slightly. Remember -- you may also need glue stick when using sticky filaments such as TPU.
   * satin -- this is for PLA only and gives a slightly different surface finish.
+We recommend you clean the sheets with isopropyl alcohol (IPA) before use as the Hackspace is a dusty place. Alternatively you can take the spring steel sheet to the sink and wash it with soap and water before thoroughly rinsing and drying it.