Shorter projects and experiments

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Toolpaths a la configuration space
09 Dec 2016

Matlab implementation of the C-space approach to tool-path generation for die and mould machining.

Assignment for ME290D.

curvature

Plot of the inverse tool offset surface and the inclination in the X axis

curvature

Milled out of machinable wax

There was an in class contest for the fastest inverse tool offset generator. Me and my partner won by an order of magnitude by rewriting the majority of calculations as matrix math.

Moldess Forming
22 Jun 2016

Vacuum forming without the mold? CNC controlled local heat supply.

knoll Always be knolling

smd SMT hot air gun as test heat supply

Hold the plastic in place Jig for holding small samples of plastic, eccentric clamps to hold the shelf

last parts Last parts coming together for the CNC machine

complicated Overly complicated belt tensioner

slitting First time using a slitting saw

framing Frame coming together

experiments Early experiments with defocused laser cutter

CNC Shelving
18 Jun 2016

before need furniture Before

after furniture After

Milling During: milling out the drawers

Adding Screw Holes Simple hole templating jig

Fitting the Drawers Drawer fitting

Presentation Timer (2 of 2) // Wall Servo
22 Feb 2016

Two part demo for Critical Making

A presentation timer that disconnects the presenter from the projector when time is up. A ‘Desk Clock’ is used to set and start the countdown time, and has a 7 segment display for the countdown. A ‘Wall Servo’ presses the input channel selector located on the whiteboard. When the presentation time has elapsed, the wall servo will toggle the input of the projector. As a demo of wifi networking, the two devices communicate state information through a server.

Part 1 (desktop display)

stock materials

autosize Magnets attach it to the whiteboard, where it can toggle the button to select the projector input source

PCB(s) Custom PCBs were created for both the wall mounted unit and the table top timer

Presentation Timer (1 of 2) // Desk Clock
22 Feb 2016

Demo for Critical Making.

A presentation timer that disconnects the presenter from the projector when time is up. A ‘Desk Clock’ is used to set and start the countdown time, and has a 7 segment display for the countdown. A ‘Wall Servo’ presses the input channel selector located on the whiteboard. When the presentation time has elapsed, the wall servo will toggle the input of the projector. As a demo of wifi networking, the two devices communicate state information through a server.

Part 2 (wall mounted servo)

stock materials

front view Front view of the timer.

wire routing

Wire routing for the various components

wooden knob

Final dial, milled out of walnut with a radial finishing pass for a smoother taper

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