Monoprice X Extension 228mm Maker Select by chinaman4u

Last crawled date: 3 years ago

This is a low or zero cost modification. Need that extra few mm of space to print?
I made this spacer in Sketchup allowing me to increase my X axis from 200mm to 228. It does require a lot of work/disassembly to make this modification. I just needed a slightly larger print area and found this to be a great solution. I now run my Monoprice Maker Select V2.1 at 228mm(x) by 214mm(y), using a 250mmx400mm glass bed clipped to stock bed.
THE TOP FRAME WILL NEED TO BE BENT or CUT in order to make this modification work. It works with the Z-brace! (SEE PHOTOS)
THE PRINT BED NEEDS TO BE DRILLED to allow for flush mounted bolts. Do not run the drill fast, run it really slow, to prevent the drill from grabbing and cutting through. Or use a cone shaped sanding stone on a Dremel. Aluminum bed is very soft. The screws on the heated bed needs to be convert to flush bolts so it doesn't get in the way of the larger glass bed.
The x axis shafts are too short, so the x axis shaft mounts will be needed to be flipped to the outside to make this modification work. And it is the most difficult job since there is very little clearance to get an allen wrench to tighten the block from the backside, but it is doable, with a lot of patience.
The belt will also be too short, so a different belt tensioner is used to make up the length. I used the WanHao Duplicator I3 2.1 and Plus Belt Tensioner by AlexWYYC and reused the stock belt.
You will need two M5 0.80 x 40 screws, and one M3 0.50 x 20 and an appropriate nut.
You will also need a larger glass print bed.
You need 4x flush bolts and nuts and adjusting thumbwheel for hot bed.
Glass bed is the major cost. No longer rods/belts needed. Just print the X extension spacer and the belt tensioner and a quick trip to Lowe's.
Note: This is my first attempt at making something on my own. I am unhappy with the finish of the part, but it is usable as is. I used 50% infill but I would recommend 100%. I will not be doing any more work and have included the Sketchup file for your use. You can also use anything for a spacer, a 30mm metal sleeve, for example.