Heated Bed

[tpulti-bt 0]

Hi,

we are going to install a heated platform in our Ultimaker.

After searching in other forums, we decided to go by the "heated wolfbed" from the reprap forum.

The heater is a silicon-heat-mat, which is attached to an aluminium plate, where we print on.

The temperature is measured by a 100kOhm Thermistor and controlled by PID.

But there are still a lot of questions.

Has anyone tried to install similar platforms in his Ultimaker, so we can exchange experiences of our heated beds?

We are happy about every answer.

Greetings, Johannes

[Daid 306]

If you look on thingiverse you'll find someone who installed a heated glass bed on his ultimaker. Glass has the advantage over aluminium that it's very straight as far as I understood. But it is more fragile.

[mr_seeker 0]

I know someone at ultimaker had ideas about a heated bed, but dont know the exact details.

[hedis 0]

Hey! What a coincidence. I was just going to write a topic about this.

I have bought a heated bed "PCB-type". (

http://www.ebay.com/itm/270860324146

)

I have some questions regarding the install, but the Ultimaker hasn't arrived yet so some questions might solve themselves when it arrives.

There should be a connector on the Ultimaker controller for the bed, and the electronics is mounted, but do I need a separate power supply?

This bed should have 12v and about 10A at 100% PWM.

What type of temp sensor is "supported" by the controller?

tpulti-bt wrote 100kOhm Thermistor, I suppose it should be a NTC type?

[tpulti-bt 0]

We have a NTC Thermistor, but it`s not installed yet. Let`s see next week if it works.

I also think we need an adittional or larger power supply. Our bed needs 200W.

[cyclone 0]

I'm interested in hooking up a thermistor as well I'm just a little vague on the exact "how."

 

According to what I've seen you can hook a thermistor up to the temp2 or temp3 on the board but I don't know which of the three pin to hook the two wires. Either: Signal and Ground or Signal and 5V. I'd hate to blow something up.

There also needs to be a change in the firmware to read the heated bed temp.

-b

[tpulti-bt 0]

 

According to what I've seen you can hook a thermistor up to the temp2 or temp3 on the board but I don't know which of the three pin to hook the two wires. Either: Signal and Ground or Signal and 5V.

-b

We go by 5V-100kOhmNTCThermistor-Signal and Signal-100kOhmResistor-Ground. But still... we have not tested it yet.

[lcollomb 0]

I'm looking to install a heated bed on my ultimaker as well. But I have no idea where to start.

So I'm very interested to know if someone successfully did it and if so if he/she would be kind enough to share how?

I'm thinking to order the following pieces and then try to assemble them:

 

-MK2 heated bed

-thermistor such as EPCOS

-Could someone advise me on what type of external alimentation is needed?

-I'm still not getting how the heat is controlled?

[Daid 306]

The heat is controlled by the 2nd heater and temperature sensor.

Ultimaker might come with a heated bed, they had a few machines on show with heated beds on show this monday.

[lcollomb 0]

Nice do you know if the heated bed was also available as a kit to install on older ultimaker?

[Daid 306]

Nice do you know if the heated bed was also available as a kit to install on older ultimaker?

Well, it fitted right on the existing model, and the electronics are prepared for it. So you would expect a kit version. But I didn't talk to the Ultimaker team about it (we had so much to talk about and so many people to talk to)

[mr_seeker 0]

Well, I am sure that it will come as an upgrade (for older machines) and an extra addition for the newer machines. Should wait and see