[islandlabs] Bot779 part build.

john abella john at abella.net
Thu Apr 22 22:26:58 EDT 2010

Congrats, that is awesome!   I can't wait to see it in action.

Do you guys know how hot the build platform is?

I didn't realize anyone was printing idler wheels, I'd only seen things like
insulated retainers and upgraded plastruders.    I'd love to find one of the
aluminum ones that people were selling a few weeks ago on eBay.  We used
epoxy on mine hoping that it would eat the acrylic less than the CA would.

My 'bot was missing a bushing, but is otherwise completed.   We haven't
hooked it up to anything yet, that's the mission for Saturday.     I'm using
a MakerGear heatcore instead of the traditional nichrome wrap, since I
figure I'll need to disassemble things a bit in the beginning.  We also
relocated the extruder controller board, so that we've got a good view of
the extruder-mech.

I got a few other small goodies from MakerBot this week when I visited, will
report back after the weekend with an update if we make any progress.


On Thu, Apr 22, 2010 at 9:58 PM, Burns, William <burns at cshl.edu> wrote:

> After a belt retentioning process earlier in the week, bot779 produced a
> pretty good replacement idler wheel at wednesday's meeting. There weren't
> any loud noises that would have indicated overtightening.
> The build platform's heated (cup warmer) build platform got a small
> upgrade, and performed very well.
> The raft didn't print properly, so the bottom of the wheel was malformed.
> (I needed to wait longer for the extruder-head to warm up)
> Otherwise, the dimensions looked good. The STL file for it was generated w/
> openSCAD. Possibly increasing the number of facets in the outer circle of
> the idler wheel would make the wheel a little smoother.
> Bot779 is ready to print.
> Would anyone like to design a part?
> -Bill
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