# Upgrades to convert a TAZ 4 to a TAZ 5

**URL:** <https://forum.lulzbot.com/t/upgrades-to-convert-a-taz-4-to-a-taz-5/2402>\
**Category:** LulzBot TAZ\
**Created:** [October 31, 2015, 3:41am UTC](https://forum.lulzbot.com/t/upgrades-to-convert-a-taz-4-to-a-taz-5/2402 "2015-10-31T03:41:01Z")\
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**Author:** ![i-t-w.com](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/i-t-w.com/32/65_2.png) [@i-t-w.com](https://forum.lulzbot.com/u/i-t-w.com)\
**Post date:** [October 31, 2015, 3:41am UTC](https://forum.lulzbot.com/t/upgrades-to-convert-a-taz-4-to-a-taz-5/2402/1 "2015-10-31T03:41:01Z")

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To upgrade a TAZ4 to a TAZ5:

- TAZ 4 bed material is PET, TAZ 5 is PEI. PEI is more durable, lower prep and maintenance, and sticks better. [https://www.lulzbot.com/products/lulzbot-taz-pei-sheet](https://www.lulzbot.com/products/lulzbot-taz-pei-sheet)
- TAZ 4 hotend is a “budaschnozzle”, capable of up to 240C, TAZ 5 is a “hexagon” capable of up to 300C. [https://www.lulzbot.com/products/lulzbot-hexagon-hot-end](https://www.lulzbot.com/products/lulzbot-hexagon-hot-end)
- Replace the Budaschnozzle extruder body with a hexagon extruder body, (print yourself) [http://devel.lulzbot.com/TAZ/Juniper/production\_parts/printed\_parts/extruder\_body\_3mmhex\_Mini/extruder\_body\_3mmhex\_v1.0.stl](http://devel.lulzbot.com/TAZ/Juniper/production_parts/printed_parts/extruder_body_3mmhex_Mini/extruder_body_3mmhex_v1.0.stl)
- Add a wire pair from the controller board to hotend cooling fan you need to add [https://www.lulzbot.com/products/micro-blower-55v](https://www.lulzbot.com/products/micro-blower-55v)
- Replace the extruder mount with the TAZ 5 version, which accommodates the hotend cooling fan (print yourself) [http://devel.lulzbot.com/TAZ/Juniper/production\_parts/printed\_parts/extruder\_mount\_hex/extruder\_mount\_hex.STL](http://devel.lulzbot.com/TAZ/Juniper/production_parts/printed_parts/extruder_mount_hex/extruder_mount_hex.STL)
- Flash the firmware to a TAZ 5 (the hexagon requires a different firmware than the Budaschnozzle [https://www.lulzbot.com/support/firmware-flashing-through-cura](https://www.lulzbot.com/support/firmware-flashing-through-cura)

Apologies if this is somewhere else in the forum, but I couldn’t find it.

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