BigDanishGuy
@BigDanishGuy@sh.itjust.works
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- Comment on Resistor Identification 1 day ago:
What keeps the relay closed? Is there a latching circuit or is it the pressure sensor? Because it seems to me that this is where the problem is.
A couple of things I would look into:
- What’s on the heatsink? A transistor driving the relay
- What happens if you bypass the sensor and manually affect the circuit driving the relay?
- Going with the theory, that the relay is driven by a transistor, does said transistor have a diode across it?
I find the transistor being blown by the back EMF from the relay much more plausible, than a random resistor sliding out of spec.
- Comment on What could be causing this on my new Elegoo CC2? 3 weeks ago:
We had a bunch of cheapo creality printers on wheeled tables at work. Some of the printers did something similar, so the wobbling was my prime suspect. But there was no correlation between fail and placement. It was printer specific.
Turned out to be issues with the z-axis screw and stabilizers. A good cleaning and, I seem to remember, a new bushing, was all it took.