Building the C-Bot 3D printer: Part 8 : Assembly Day 1
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Finally began bolting stuff together. Today I completed:
- The lower XY frame, and long Y-legs, plus dual lead-screw steppers.
- The Bowden extruder assembly. I previously printed Mason’s derivative of Carls design (which links to the install directions).
- The Core-XY gantry interior (no wheels yet, since the upper frame is incomplete).
- A few bits on the top frame : There was something wrong with both ‘rear XY idler’ prints: The v-slot extrusions wouldn’t fit in them, but fit into everything else. So they’re currently re-printing…
All this was done following the c-bot assembly guide, and staring at pics of Mason’s and Carl’s bots. The trickiest bit is to figure out how many t-nuts to pre-load into each extrusion for the future attachments…
Gotchas:
- When assembling the Bowden extruder, I didn’t have any M3 bolts the correct length to screw the pivoting arm into the stepper block: I needed to cut a 25mm bolt down to 14mm: Worked like a charm.
- Double-Gotcha: I later needed that bolt to mount the HBP. So I had a 3-legged HPB for a while…
Here’s the current build status, with the Replicator re-printing the ‘rear XY idler’ in the background…
Time spent: About two hours.
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