Sunday, 2 May 2010

Makerbot #453 : Ceramic Heated Build Platform (HBP) part #2

To connect the thermistor, I bought a temperature sensor. 

I found 2 problemes with it.
First : the connector are not correct for the A6 connector on the plastruder. The VCC and the 5V.  need to be switch. After cutting the trace I placed a small wire to make it right.


Second problem : The green connector on the Temperature sensor board is too big and crash on the casing when going UP. So I decided to not connect it directly on the plastruder board. Because of that, the bad wiring are no more a problem since I'm using a wire. With the wires I can connect it where I want. Anyway, the switch is already done.... Note to me : Next time, look if a new part can be place safely where you need it.

To drive the HBP I'm using a Relay. I installed a LED (took from a old Network touter )  to see when it's heating or not. 





The relay is placed with the sensor board on the right side of the Makerbot.



This is the connection on the plastruder :



The test show that it's now easy to reach 100C in less than 10 minutes.



Now, I need to find a good cable to connect all of that to the HBP. I need something long enough and also a cable that can move with the HBP.

3 comments:

  1. I bet you could have just turned the temperature sensor board around (make it face right instead of left) and that would have solved both of your problems.

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  2. No. Because the connectors are not reversed. Only two of them need to be changed. Anyway, it's working now ;-)

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  3. Hi Nic,
    I have just discovered your blog and you seem to have had all the problems as I did. I am much more advanced in my problems as I have had to nearly replace every part of my extruder. Learning Skeinforge took a while also.
    I found your blog looking for electronics (arduino, makerbot, robotics & electronics kind of) shops in Montreal. I dont suppose you know of any?
    I look forward to seeing your cupcake print the rest of the mini-mendel.
    K.

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