Made a Makerbot extruder cable clip by justjoheinz

This is a small clip that fits in the hole above the motherboard and clips the cable that goes to the extruder – thus keeping it from touching the drive belt.

The model can be downloaded from Thingiverse to be printed.

The raft came lose at the end of the print so it was not completely finished, however it is still useful.

Makerbot extruder cable clip by justjoheinz (3989)

BECKMAN 3020 DMM – Cleaning and changing battery

I have gotten an old hand held DMM that had gotten some paint spilled on the LCD a long time ago.
Speaking of old

I have tried measuring resistance and voltage with it before but never gotten any good readings with it; the ohms was swinging between 0 and 50 when the test leads where shorted.

Today I figured I should try to clean it off as it is hard to read the LCD with paint over most of it.
I used some nail polish remover to get rid of the paint and when that was done I was able to see the decimal dot on the LCD.
Once I could see this I knew it was time to change the battery [On this DMM the decimal dot flashes when it is time to swap battery].
I am a bit surprised that the DMM even came to life, it should have a 9V battery. The old one had a best before date of 2001 and held all of 4.2 volts.

With a fresh and stronger battery the readings got a lot better, for instance with the test leads shorted now it reads about 0.2 ohms.

BECKMAN 3020