This guide rod is to go with the MakiBox Z Wobble Eliminator that Marcotasm made(http://www.thingiverse.com/thing:328014). I couldn't find anything around the house to use so I drew this up in tinkercad. So far it works very nicely and seems to have a very smooth motion.Just print it and either drill holes or just use double sided foam tape to stick it to the acrylic wall. I chose to use the foam tape because I didn't want to risk drilling into the acrylic, so far it seems to be staying in place pretty well.