Disassembly Guide
Step 1: Unload filament
Turn your printer ON | Use option Filament > Unload Filament | Wait for filament to unload |
Step 2: Remove the nozzle
Use option Settings > Temperature | Set nozzle temperature to 250C | Unscrew the nozzle half a turn |
ALERT : Let the hotend cool-down before proceeding to next step
Step 3:Remove main cable strain relief
Unscrew the strain relief holder's screw | Pull the holder backwards | Lift the holder up |
Step 4: Release the PINDA bracket
Unfasten this screw | Unfasten the pipe fittings | Remove the bowden tube |
Step 5: Disconnect the Bowden Tube
Unfasten the bottom fitting | Unfasten the pipe fittings | Remove the bowden tube |
Step 6: Remove the heat break
Unfasten the 3 set screws | Pull the hot block down | Remove the heat-break |
Assembly Guide :
Step 1: Thermal Paste Application
The surfaces of the heat-break and heat-sink have roughness, due to the manufacturing process. Although micro, that low roughness allows for the creation of micro-pockets of air in between their surfaces.
Air is not a good heat conductor. The pockets of air will decrease the metal-to-metal contact surface and lower the heat dispersion.
For that reason we send with the Copperhead heat-break a bag of thermal paste and we recommend you coat the surface of its cold side as shown in these pictures.
Step 2: Replace The Stock Heat-break
Unscrew the stock heat-break out of the heat-block | Verify the nozzle head is ~2mm away from the heat-block | Screw the P Mini heat-break into the heat-block | Gaps between nozzle/heat-break and heat-block look like these |
Step 3: Create Slack on the Pipe Fitting
Use a 10mm wrench | Use a hex-key to align the PTFE tube | Tighten the 3 heat-break set screws |
Step 4: Install the hotend assembly
Insert the P Mini into the heat-sink | Use a hex-key to align the PTFE tube | Tighten the 3 heat-break set screws |
Step 5: Reinstall the bowden tube
Tighten the pipe-fitting's bottom | Reconnect the pipe-fitting's top | Tighten the pipe fitting |
Step 6: Re-Install Pinda Mount
Place the PINDA mount back | Tighten this screw | And tighten the other |
Step 7: Re-Install the main cable strain relief
Place the strain relief back | Align the mounting holes | Use the screw to tighten it in place |
Final Checks
Step 1: Hot Re-Tighten the nozzle
Raise nozzle temperature in Settings | Set the nozzle's temperature to 250C. (If you printing above 250, hot tighten 10+ your printing temperature) | Tighten the nozzle with a torque wrench |
Let the hotend cool down to room temperature.
Step 2: Double check Prusa Mini Minda/Super Pinda
Additional Information: https://help.prusa3d.com/guide/height-adjustment-of-m-i-n-d-a-superpinda-sensor-mini-_154547
Turn the Mini OFF | Lower the X-axis | Until the nozzle touches the bed |
Release the PINDA set-screw | Let the PINDA slide down | Tighten the PINDA set-screw again |
ALERT : This distance - about 0.8mm - is very important to a proper functioning of the bed leveling and printing.
Install Guide Provided by Bondtech - Source: https://www.bondtech.se/product/copperhead-heat-break-for-prusa-mini/?mc_cid=f1f62db2a9#tab-setup-guide