In the midst of my build, I took a weekend off. (I’m from Minnesota, so with Prince passing away, many of us dropped everything and flocked to different gatherings in Minneapolis to the celebrate his life and talents.) Two weekends ago, I pretty much had all of the hardware put together and all I had left was to put on the belts and hook up the electronics and everything was cool. This evening when I went out to the garage to resume my build, I noticed that my X and Y axis were cracked.
The bolts were not tight. Some were snug, but some bolts had 1/8 inch of wiggle room yet. My conduit is a bit thicker because of the heavy galvanization, which made a snug fit by itself. Then the temperature dipped into the low to mid 30’s (Fahrenheit) and we had a bit of rain, and yes, sometimes it snows in April (sometimes even May). Anyway…I believe the temp and humidity changes likely caused the plastic to swell a bit and with the weight of the Middle Z, it was a bit too much and caused a split.
I’m not sure what type of advice to give here. Maybe sand the parts and conduit a bit more so it’s not so tight, and maybe expose your parts to a bit of moisture before your build. Does anybody else have any advice on this topic?