(abandoned) component: mini heat press
NOTE: This project is relatively expensive for the course budget (~$350 / person) and isn't strictly necessary for my system, so I'm not including it as a component I'm committing to.
A heat press for flattening or forming small pieces of sheet stock.
specifications
(subject to adjustment)
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Stock dimensions <= 200mm x 200mm x 10mm, must be rectilinear
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Conveyor or roller feed in/out in a north-south direction
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50C < Max temperature < 100C
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1N < Max closing force < 10N
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Package dimensions: <= 250mm x 250mm x 250mm
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DIN rail mountable
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M4 machine screw mounting holes in corners
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Power interface: 12V, 5A barrel jack
heat forming dies
Machine is configurable with low-relief heat-forming dies < 50mm x 50mm.
- Low-pressure only! Not for stamping or punching unless very malleable material
- Must be sufficiently heat-conductive
- Die holder geometry TBD -- currently envisioning a replaceable section of the heating plates
communication interface
- Speaks Protobuf (plug) over UART
- 12-pin IDC connector (candidate standardized pinout)
- Digital pin control (preconfigured temperature, closing height, feed distance)
- In
- Feed / Not Stop
- Close / Not Open
- Heat / Not Cool
- Out
- Overheat
- Motion complete
- General fault
- In
cost/complexity
- On the order of $100 in parts, most COTS, some 3d printed, PCB
- Assembly time: an afternoon
work-in-progress BoM
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$20 shafts (~10mm?)
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$10 bushings
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$15 springs
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OR: $10 v rollers
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$30? 8020 frame + assembly hardware
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$5 3d prints
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$10 electrical components
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$15 lead screw x2
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$12 NEMA 12 stepper
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$9 GT2 Belt
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$7 GT2 Pulleys
Total ~$150 at current estimate.