Alternative heaters for heated beds or ambient temp.
Posted by VDX
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Alternative heaters for heated beds or ambient temp. January 30, 2010 05:51PM |
Hi all,
... i searched through my basement for heater elements suitable for a heated bed or temperature controlled housing so i can define the ambient temperature while fabbing or for curing while laser-sintering.
There i found some parts maybe interesting or inspiration for other applications too - atached is a photo with some of the parts:
- right is a sample-box from Caddock with TO-heaters capable of 15 to 100 Watts (the leftmost part in the box) heating power
- in the middle are two 150Watts@115VAC-flatpack-heaters, perfect suited for a heated bed or curing box when wired serial for my 230VAC powerline
- left are a power-resistor and some heater-capsules from 30Watts@110VAC to 80Watts@230VAC
- the black parts in the left upper corner are two SSR's capable of switching 2.5Amps or 25Amps current at 230VAC i can drive with PWM from a microcontroller for controlled heating
- and at the bottom are some heat-sensors: - a 5k-PTC i can use until 300°C and some PT100- and PT1000-sensors i've got as samples from Heraeus and i can use until 800°C (maybe until 1200°C with some tweaking and calibrating)
I have a Watlow temp-controller with a NiCr-tube-heater and embedded PT100-sensor in the heater element and another OEM-temp-controller which can directly be used with the SSR's, a PT100 and one of the heater-elements, but i think a solution with an Arduino should be more interesting ...
Viktor
Edited 1 time(s). Last edit at 01/30/2010 06:02PM by VDX.
... i searched through my basement for heater elements suitable for a heated bed or temperature controlled housing so i can define the ambient temperature while fabbing or for curing while laser-sintering.
There i found some parts maybe interesting or inspiration for other applications too - atached is a photo with some of the parts:
- right is a sample-box from Caddock with TO-heaters capable of 15 to 100 Watts (the leftmost part in the box) heating power
- in the middle are two 150Watts@115VAC-flatpack-heaters, perfect suited for a heated bed or curing box when wired serial for my 230VAC powerline
- left are a power-resistor and some heater-capsules from 30Watts@110VAC to 80Watts@230VAC
- the black parts in the left upper corner are two SSR's capable of switching 2.5Amps or 25Amps current at 230VAC i can drive with PWM from a microcontroller for controlled heating
- and at the bottom are some heat-sensors: - a 5k-PTC i can use until 300°C and some PT100- and PT1000-sensors i've got as samples from Heraeus and i can use until 800°C (maybe until 1200°C with some tweaking and calibrating)
I have a Watlow temp-controller with a NiCr-tube-heater and embedded PT100-sensor in the heater element and another OEM-temp-controller which can directly be used with the SSR's, a PT100 and one of the heater-elements, but i think a solution with an Arduino should be more interesting ...
Viktor
Edited 1 time(s). Last edit at 01/30/2010 06:02PM by VDX.
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