Introduction
Purchase your Hemera here: https://e3d-online.com/e3d-hemera-175-ki...
The printed files can be found here:
https://www.thingiverse.com/thing:405843...
Find the part cooling fan bracket here: https://www.thingiverse.com/thing:403163...
(credit to permanoob)
Please note that this guide is assuming the use of a fully assembled and hot tightened Hemera unit if you have not yet fully assembled and hot tightened your unit please see: Hemera Assembly Guides
Mounting a Hemera to a Prusa i3 MK3 is easy, and we provide most of the tools you'll need. Please note, though, that you should be very careful of the following safety cautions:
- Be aware of your electronics. Don't work on your printer while it is plugged in or turned on.
- Be aware when you heat up your new HotEnd not to burn yourself on the heater block nozzle or heater cartridge.
- The standard Hemera is capable of printing up to 285°C, do not exceed these temperatures unless you have replaced the Thermistor cartridge with a PT100, the Aluminium heater block with a Plated copper heater block, and the Brass nozzle for a Plated copper, Hardened steel or Nozzle X.
- Firmware modification is not optional it is a mandatory step,
- Make sure you have ordered and received the correct voltage heater and fan to match the power supply of your printer. All of our current heater cartridges should have the voltage and wattage laser engraved on the cartridge. Taking an ohm reading is the most reliable method of testing what voltage/ wattage you have received.
- Connecting 12v parts to a 24v power supply can result in overheating, component damage, or fire. If you are unsure double check the rating on your power supply.
- Your HotEnd and your printer are your responsibility. We cannot be held responsible for damages caused by the use, misuse or abuse of our products.
- We provide these guides as a reference to show that it is possible to mount a Hemera to a Prusa i3 MK3/3s. Users should be mindful that your specific use case may vary and further modifications or additions may be required.
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Locate the x4 M3 screws that fasten the heatsink fan.
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Undo them using a 2.5mm hex wrench.
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Locate the x3 M3 screws on the back of the extruder housing using a 2.5mm hex key.
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Gather:
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x1 Printed Hemera Mount
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x1 Printed Hemera bumper piece
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x1 Fully assembled and hot tightened Hemera
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x2 M3 square nuts.
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x6 M3 x 6mm screws.
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Turn the printer so you are facing the backside.
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Gather the wires together, the heatsink fan wires and hotside wires should come below the bottom rod. These will fasten to the underside of the cable guide.
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The motor cable wire and part cooling wire should be between the bottom rod and bottom belt, and rest on top of the cable guide.
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Fasten the wire bundles with cable ties.
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18 Comments
are the necessary firmware changes that are needed documented somewhere?
They are here. Prusa i3 MK3 Firmware Modifications
Thank you very much.
I would love to see the filament run-out sensor incorporated into the mount, but it looks like it’s removed possibly?
Link for cooling fan is invalide