Tried printing something on the i3. The X axis was reversed because I had the belt tensioner flipped over. I can't flip it the other way because the extruder motor's connector interferes because I rotated it so it wouldn't rub on the top frame on tall prints. So I can't use the belt tensioner. That's the third or fourth x axis belt tensioner I've tried...may just have to design my own. I went back to screws + zip ties.
Did some more work on the CubeX, mainly taking it apart. I found more examples of decent engineering and terrible engineering.
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| Nice little rubber + plastic grommets around the screws to protect the acrylic. |
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| Many of the corner holes were cracked like this. |
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| Shell off |
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| Feet screw off. Didn't end up needing to remove these. |
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Some parts are fancy expensive CNC milled, some, like these
belt clamps, are just pieces of laser cut acrylic stacked. |
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| Removed those dumb stainless steel cylinders. |
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| These acrylic clips were nice. Removed the filament tubes. |
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| Why are these shaped like that? $$ |
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| These were the little filament tube ends. Turned and threaded. $$ |
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| Got the X-Y portion off |
Getting there...
The single linear bearing on one of the X axis rails was shot. The wider one is ok, but it's far too wide for a single extruder. I'll replace both with nicer bearings + holders. The Y-axis bearings seem ok.
To do:
- Replace X axis bearing blocks with more standard ones with new, nicer bearings
- Design and make a new single extruder X axis carriage plate.
- Select extruder + hot end. Might use stock extruder + e3d v6 hot end
- Replace bed plate with a square one (still aluminum). May not need this depending on how I mount the build surface.
- Add a large AC heated bed + glass build surface.
- Replace the flimsy lexan Z axis plate thing
- Replace the reed switches with mechanical switches.
- Add a standard control board. Put the screen/control interface where the old one was. Will need a relay for the AC bed. May need something fancy to drive the big Z axis stepper.
- New x axis belt tensioner
- Design and laser cut top cover and side covers. Maybe use magnets to hold them on
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