Copperhead Heat-break for Prusa Mini Install Guide

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

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

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