Traceur Lower Split

While the original TraceurLower does fit on a 220x220mm build plate (stock Ender 3 firmware buildplate size), it leaves little room for a brim in the case your printer's bed adhesion is suboptimal. I also found it difficult to position the entire unit on my buildplate in Cura such that my Ender 3 wouldn't cut off one end or another. 

This model splits the TraceurLower into two pieces at the back of the blaster and does not interfere with any of the blaster's function. The only important thing back there is the screw attaching the top to the blaster, and that hole was not interfered with.

Hardware?
You will need 2 extra M3 screws of any length from 6mm-10mm. The screw head holes are sized at 5.75mm, so the same socket headed screws used for the rest of the blaster will work well. The screws tap directly into the plastic, as they are not intended to be removed once you attach the two pieces. Therefore, you will not need extra heat-set inserts.

An unintentional bonus effect of this split is that the ball detents are easier to install as you can now use pliers to squeeze them in. It is also easier to sand the top of the magwell where the trigger slides, in case you are having trouble with the trigger pull. Both of these should be done before you attach the back piece.

This edit was made to the original TraceurLower file, and not the tweaked version that was made by Adam Robertson. If someone wants the same edit done to that file, I can do it on request.