Accomplished this weekend: Heated Bed wired to relay(I'll MOSFET-ize it later),

Accomplished this weekend:

Heated Bed wired to relay(I’ll MOSFET-ize it later), then wiring upgraded from 16 Gauge to 12 gauge. Verified long term up to 100C (lesson learned: Infrared non-contact thermometer doesn’t work: no reflective surfaces! Measures 25C on the aluminum plate, 80C on the heater surface…plate sure felt hotter than 25C. :slight_smile: )

Buck Step down converter installed to power raspberry Pi (http://www.ebay.com/itm/141082066753?ru=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_from%3DR40%26_sacat%3D0%26_nkw%3D141082066753%26_rdc%3D1)

Extruder motor assembly installed but not wired.

Broken: Left side top pulley assembly. Oops.

Reason I’m posting: Between Boy Scout campouts and Halloween (a BIG deal with my family: https://www.youtube.com/watch?v=gD1av-rE7Ho ), I’ll most likely not get to work on the printer til November. :frowning:
http://www.ebay.com/itm/141082066753?ru=http://www.ebay.com/sch/i.html?_from%3DR40%26_sacat%3D0%26_nkw%3D141082066753%26_rdc%3D1

Thanks for the tip for the converter, I picked up a few as well just now, great to have for misc uses:P

I used this relay, it’s been working great.
http://www.ebay.com/itm/251525260933?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I did ofcourse disable PID mode in Marlin and use bang-bang instead, but temperature stability is no problem at all.
What relay did you use?

@Mike_Miller Ok, this is a nice looking power widget with some beefy looking caps and all…but the haunted house!?! WOW! I’m betting your kids LOVE it! :smiley:

@Shauki I drop the temperature a few degrees per 5 layers at the top of narrow parts where the layers take less than 3 seconds.