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hacking_an_eq-3_model_n [2016/03/22 14:39] – [How the Model N Looks Inside] Traumflug | hacking_an_eq-3_model_n [2018/05/27 16:10] (current) – external edit (unknown user) |
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During the modification a lot of pictures were taken, so let's speak these. | During the modification a lot of pictures were taken, so let's speak these. |
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| picture | picture | | | {{ :eq-3:eq-3_model_n_thermistor_removed.jpeg?direct&300 |First step is to remove the Thermistor. Try to heat it on both sides, then shove it away.}} | {{ :eq-3:eq-3_model_n_wires_instead_of_thermistor.jpeg?direct&300 |Then solder a wire to each of the pads. Requires lots of flux and a steady hand :-)}} | |
| | {{ :eq-3:eq-3_model_n_wire_hole.jpeg?direct&300 |Drill up one of the venting holes in the battery cover. Wires will go through here.}} | {{ :eq-3:eq-3_model_n_wiring.jpeg?direct&300 |Then make a knot into the wire pair and run it through the cover hole. This means to be a stress relief, so you don't rip the circuitry apart if you accidently trip over the wire.}} | |
| | {{ :eq-3:eq-3_model_n_thermistor_on_wire.jpeg?direct&300 |After doing the wiring on the PCB side, solder the thermistor removed earlier back onto the other end of the wire pair. Again, this might take a few tries.}} | {{ :eq-3:eq-3_model_n_thermistor_insulated.jpeg?direct&300 |As you might mount the thermistor to some metallic surface, insulation of that is a good idea. This is Kapton tape, but its high temperature resistance isn't needed here.}} | |
| | {{ :eq-3:eq-3_model_n_ready_with_external_thermistor.jpeg?direct&500 |Assemble everything back together and you're done. That's how the EQ-3 Model N with DIY'd external thermistor looks like.}} || |
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| With all this done, the Model N works just as before, just room temperature can be measured on a more meaningful position. |
===== How the Result Works ===== | ===== How the Result Works ===== |
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hacking_an_eq-3_model_n.1458653943.txt.gz · Last modified: 2018/05/27 16:10 (external edit)