Ubis 13HT2490 High Temperature 24 Volt 90 Watt Hot End

Ubis 13HT2490 High Temperature 24 Volt 90 Watt Hot End

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This is your high end, high temperature hot end!

Ordering options:

Standard Printrbot 100k thermistor temperature sensor, but provided in a robust cartridge mount. This sensor limits the maximum operating temperature to 270C continuous because of the limits of the thermistor. The good news is that no firmware update is needed to install and use this premium hot end in your Printrbot. This is for the most part your plug-in-and-go choice.

An optional high temperature sensor is the PT1000. This is a precision, fast response platinum temperature detector in a robust cartridge mount (the sensor itself is 0.3%). This will allow the Ubis 13HT2490 to provide it's maximum output of 500C at the highest flows possible. For materials that require temperatures to 400C+ this is the perfect hot end. It is made to last at extreme high temperatures. We recommend the PT1000 even if you are printing to just 270C. The high end accuracy of this sensor is superior to any other option, whether it is a thermistor, or PT100 (which requires an additional amplifier board) or a thermocouple type sensor. Firmware must be updated to use the PT1000 sensor configuration. With Marlin firmware use '1047' as the table configuration for this sensor. The standard 4.7K ohm pull up resistor must remain on the Printrboard that was used with the 100k thermistor. The maximum temperature limit must also be increased in the firmware. A 525C maximum is a good value to use, as this should allow for some overshoot without an over temperature shutdown occurring. No electrical mods are required to directly connect this sensor to your Printrboard.

Compatible with many other printer brands with some modifications for hot end length and bed level sensors may be necessary. Perfect for the DIY’er wanting to test the limits of 3D printing. It is mechanically robust and offers the ability to change the nozzle to other sizes and special purpose ones. See our nozzle page for available choices.

  • Heater core: 24 volts 90 watts. Ships with Molex MicroFit 3.0 plug installed on heater wire leads.

  • Maximum operating temperature: 500C continuous if with PT1000 temperature sensor. Printer firmware needs to be updated for temperature table '1047' and configured to shutdown at 525C for over temperature condition.

  • Nozzle size installed: 0.4mm

  • 1.75mm filament

  • Order options: Select either standard 100k thermistor or PT1000 temperature sensor. PT100 sensor is also available for those that may have this requirement. Ships with Molex MicroFit 3.0 receptacle on sensor wires. Thermistor option ~ 1 3/4” (45mm) length leads, and PT1000 sensor option ~4.75” (120mm) length leads.

  • Dimensions: Mount diameter 0.625” +/-0.005” (~15.87mm +/-0.125mm). Overall length 3.3” +/-0.040” (73.66mm +/-1mm).

Other requirements:

  • Bed level sensor position may need to be adjusted.

  • User must supply fan cooling across heat sink fins.

  • 24 volt power supply is required to power this hot end. A simple cabling solution is possible using a laptop power supply rated at 24v 5A or better to power just the hot end and leaving the Printrboard still connected to the original 12 volt power supply. More details will be posted.


There are several important considerations to remember when printing with high temperature materials. First make sure you have good ventilation as the fumes may hazardous to breath. We recommend that a different hot end be used for different temperature requirements of your filaments. It can be very difficult to remove all traces of a lower temperature filament when changing to a higher temperature filament or back to a lower temperature. The result is that a clogged nozzle will occur because the lower temperature filament will get charred when heating up to temperature of the higher temperature filament requirement. This results in a very hard to clean nozzle clog. A similar problem occurs when dropping down in temperature to a lower temperature requirement. Except this time the higher temperature filament does not fully melt (if at all) and breaks loose in the filament path only to clog the nozzle. PLA and ABS are close enough in temperature requirements that this problem is manageable. Trying to switch from PLA / ABS to say ULTEM / PEEK filament or back will test your patience. The nozzle can be changed to a larger diameter orifice to help minimize this problem, but is no guarantee. If you must use the same hot end for a wide filament temperature specification, then at a minimum the nozzle should be changed and kept identified for what type of filament is used in it.

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