Sillybutts Alchemist MGN9 Linear Rail Remix

Want your Alchemist to be that much better? Look no further! Linear rails offer buttery smooth motion while restricting all forms of wiggle and rotation. As an added bonus, this means that nothing ever touches your barrel, so your anodization is safe. 

Required Hardware:

150mm MGN9C or MGN9H rail - the C is a shorter block, the H is longer. MGN9H is theoretically stronger but for this use case, either will work. Slightly more expensive rails from reputable 3d printer shops will be much nicer on wiggle-reduction and non-crunchiness than cheapo Amazon rails. It's worth the price difference.

4 x M3x8mm button head screw: holds the priming block to the carriage

8 x M3x12mm(or longer) socket head cap screw: holds the rail to the blaster

8 x M3 hex nut: goes into the top printed rail for those last 8 screws to screw into

Instructions:

Pick a shroud and print it. Or use the included STEP file to make your own.

Pick the right priming block for your rail and print it.

Print the top rails.

Build the blaster except for the shroud and top rail.

Stuff the 8 hex nuts into the hexagonal slots in the top rail prints.

Put the MGN9 shroud-back on the blaster.

Put the rail+priming block combo in place.

Use the longer M3 screws to screw the back of the rail into place (just lightly for now).

Connect the priming block to the priming bars like normal.

Screw the priming block into the MGN9 carriage (and if you have loctite, use it here - the screws can back out with use).

Put the MGN9 shroud-front onto the blaster.

Maneuvering the priming block around as necessary, get the other long M3 screws into the linear rail and into the hex nuts on the top rail prints.

Tighten all the screws down nice and snug.

Finish building the blaster.

Enjoy yourself.

Note: this is being released under CC-BY-NC-SA which means no commercial use. If you want to use it commercially, contact me.