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revarbat / snappy-reprap

The world's most 3D printable 3D printer. (Guinness Book of World Records 2017 & 2018)
http://revarbat.github.io/snappy-reprap
GNU General Public License v2.0
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BOM for 2.0 #13

Closed bigmt closed 7 years ago

bigmt commented 7 years ago

I am currently printing all of the parts for Snappy 2.0. I believe the BOM page is missing the bridge segment. It is in the STL repository, so no issues finding it, but I believe the reference from the BOM is missing. Great work on the design, I'm having a great time printing everything. I'm using PETG and am a little concerned with the static friction on the rail segments being a bit high, but will report back if I have any issues.

revarbat commented 7 years ago

Whoops. Missing bridge segment added to BOM.

You may need to experiment with lubricants for PETG. I use mineral oil for PLA and ABS. Maybe a dry Lubricant like PTFE spray on lube will work.

I suspect the bridge segment may be a couple millimeters too long, by the way. Though I'm unclear if my issues were due to design or warped printing. I had to separate the base of one tower from the X rail by a couple mm to get the Z movement to not stall. I kinda took a break from working on v2 after MakerFaire, so I haven't gotten back to it yet.