Almost linear motion concept
I don't know why the files already mergen from the 26th of March are also in this merge request. But I also don't know how to remove them.
This is a concept inspired by concept 8. For now radically geard towards cost and manufacturability. The next step is to make it pretty.^^
Features:
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All custom parts are either sheet metal stampings or rods and tubes cut to length.
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All rods and tubes are the same diameter
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Design is setup to be equally well made as stampings, laser cuts or CNC milled parts
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Most parts are orientation agnostic
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Only one part needs folding. No large radii. No internal folds.
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Easily available skate board roller
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Widely available 608 Ball bearings
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Minimal friction on the Ambubag
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The cam track is replaceable when worn out
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A ball bearing reduces wear on the cam track
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Adjustable pump volume (Still needs some work)
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Very good access to the Ambubag
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Easily taken apart and disinfected
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12V gear motor
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The separate motor mounting plate can be easily customized to the mounting wholes of the used motor
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Most of the motor weight rests on the ground and not on the housing
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Opposed to concept 8 the whole pump volume can be used
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No risk of pulling the bag into the machine if the roller locks up
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Due to the cam track mechanism the pump volume rises nonlinearly. Much like natural breathing. But I don’t know if this makes a difference.
Issues to be addressed:
- The air volume adjustment is not yet bullet proof
- 0 points for looks. Everything is geared towards cost and ease of manufacture.
- Little space for the driver circuit