RepRapMicron Delta mods
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Creating A Micron Accurate Delta Stage
While the OpenFlexure Delta Stage is excellent for microscopy, it requires modification to become an R&D platform for μRepRap. There are a lot of unknown unknowns though, so it makes sense to push it as far as possible until we know what more of them are. A key difference is that microscopy is in 2D while μRepRap requires motion and observation in 3D. So rather than observing a slide from underneath, μRepRap needs to view the precision work area in several dimensions. Currently this is done by extending a beam from the slide platform which can reach a microscope stage.
Suggested modifications so far are:
Implemented
- Improve robustness of motor mounts
- Adaptors for NEMA17 motors
- Extended beam to position probe over free-standing microscope
Unimplemented
- 'O' Ring accessibility improvement
- Mounting points to anchor stage to working platform
- Illumination with different colours/directions to improve 3D visibility
Redesign
These are potential features for a redesign of the delta stage:
- Integrate NEMA17 motor mounts
- Some form of axis limit switch, or a hard stop
- Alternative to 'O'-rings for backlash control
- Proper solid beam to reach microscope stage
- Anchor points for cameras viewing multiple angles
