4 Attachment(s)
Improved End Stop Switch Brackets
When I first built the i3v, the thing that annoyed me the most was the end stop switch brackets. The geometry of the Y stop seemed strange to me, with the bolt hitting the hinge side of the switch. I couldn't get the X end stop far enough to the right to use all of the bed and I never could get the Z switch to trigger, no matter how much I trimmed the wooden mount.
So, I designed a set of stop switch mounting brackets that solve these problems. The Y switch is reoriented so the ball end of the switch hits the screw. The X stop is turned vertically with a notch in the bracket to fit around the wheel bolt and the bracket has a place to zip-tie the wires. The Z switch is relocated around the side of the extrusion so it lines up with the X idler.
Downloadable files are here: http://www.thingiverse.com/thing:321810
Attachment 2244Attachment 2245Attachment 2246Attachment 2247
3 Attachment(s)
Micrometer Adjustable Z End Stop
This is a variant of my adjustable Z end stop that uses an inexpensive micrometer barrel instead of an adjustment screw. Micrometer barrels are available on eBay for less than $20 (USD).
The parts can be downloaded here: http://www.thingiverse.com/thing:356819
Attachment 2251Attachment 2250Attachment 2252
4 Attachment(s)
Extruder Motor Fan Shroud
Like many other people, I had a lot of trouble with the extruder motor overheating. Mine got hot enough to soften the extruder block and the motor screws pulled through. There are many ways to solve this problem, but I built a fan shroud to mount a 40mm fan to keep the motor cool.
The shroud is designed to keep stray air from blowing on the bed, which I found caused problems with print adhesion. With this shroud, the motor peaks at around 45C, even with the current set as recommended by the MakerFarm instructions.
The parts can be downloaded here: http://www.thingiverse.com/thing:343026
Attachment 2255Attachment 2256Attachment 2258Attachment 2259