Saturday, December 14, 2013

Its alive again!

So originally I thought it was just the resistor. With a little help from the forums I discovered it might also be the Mosfet which helps regulate the power to the hot end. There was no guarantee that either of these were the issue. I was definitely going to replace the resistor at a minimum. The resistor was in very rough shape. It is bubbled out and has half a dozen cracks where it split open. This was definitely a major problem!

After replacing the resister I still had no heat.  Some recommendations were just to replace the entire circuit board. I decided I would save a little money and buy 2 of the mosfet that might be the issue. $0.88/ea plus a small fee for shipping.  I replaced it and boom I had heat again!!!! I was so excited. This was a very cheap fix, and now I have a spare mosfet and resister if it ever happens again.

This is where the component on the board is that I had to replace. Keep in mind I had to de-solder 8 legs on the old one and re-solder the 8 legs on the new one. It was definitely tricky!

Here you can see the old mosfet sitting on a dime, see those 8 tiny legs? The also you can see the bulging resister I had to replace in the hot end. Its hard to see the cracks in it but they are there. 

Once I got it up and running I reprinted the little snowflake vase I was trying to print from before.

Coming up next: I am finally going to finish the enclosure for my circuit board. seen here
it has a slot on top that I have been meaning to attach a fan too. Working on that for this weekend's project. 

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