Ordi - Revision history

Rando at 07:17, 3 September 2018

2018-09-03T07:17:40Z

← Older revision		Revision as of 00:17, 3 September 2018
Line 63:		Line 63:

	[[File:APBinitial-1.jpg\|640px]]		[[File:APBinitial-1.jpg\|640px]]

			== Hardware ==

			The Ordibooth uses a camera connected to a Raspberry Pi with a touchscreen so a user may take a picture. The picture is automatically uploaded to the Mac Mini for processing.

			[[File:Ordibooth_System_Diagram.png\|x640px]]

SteeleNivenson: /* Printing pipeline */

2017-06-01T00:42:33Z

Printing pipeline

← Older revision		Revision as of 17:42, 31 May 2017
Line 45:		Line 45:
	<ol>		<ol>
	<li /> An interactive GUI built as a plugin for Inkscape. This requires exporting from stipplegen and importing the SVG into Inkscape and clicking around buttons.		<li /> An interactive GUI built as a plugin for Inkscape. This requires exporting from stipplegen and importing the SVG into Inkscape and clicking around buttons.
	<li />A Processing utility which can [https://github.com/lazzarello/AxiDraw-Processing control the AxiDraw]~~. This is probably~~ the ~~way to go.~~		<li />A Processing utility which can [https://github.com/lazzarello/AxiDraw-Processing control the AxiDraw] which includes a simulation program to show the toolpath
	</ol>		</ol>

SteeleNivenson: /* Rendering pipeline */

2017-06-01T00:41:44Z

Rendering pipeline

← Older revision		Revision as of 17:41, 31 May 2017
Line 35:		Line 35:
	When a picture is chosen, a darktable plugin is run that opens that picture in [https://github.com/lazzarello/stipplegen stipplegen] to begin rendering a stipple cluster to generate a [https://en.wikipedia.org/wiki/Travelling_salesman_problem TSP path]. Results of each iteration are shown in realtime on a display on the outside of the booth. After enough iterations, a recognizable image will form. Use your judgement and wait until you begin to see an image you like. The generator will export a vector of the TSP path crossing all the dots. This is what the axidraw will print.		When a picture is chosen, a darktable plugin is run that opens that picture in [https://github.com/lazzarello/stipplegen stipplegen] to begin rendering a stipple cluster to generate a [https://en.wikipedia.org/wiki/Travelling_salesman_problem TSP path]. Results of each iteration are shown in realtime on a display on the outside of the booth. After enough iterations, a recognizable image will form. Use your judgement and wait until you begin to see an image you like. The generator will export a vector of the TSP path crossing all the dots. This is what the axidraw will print.

	There is a [https://github.com/lazzarello/AxiDraw-Processing Processing interface] to the AxiDraw serial port. This ~~will~~ be merged into a unified stipple, trace, print application.		There is a [https://github.com/lazzarello/AxiDraw-Processing Processing interface] to the AxiDraw serial port. This could be merged into a unified stipple, trace, print application.

	The GUI for the rendering section is the most important graphical stage since it greatly effects the output image. The stipplegen GUI is good for a demonstration but has poor performance. It should be optimized for interactivity.		The GUI for the rendering section is the most important graphical stage since it greatly effects the output image. The stipplegen GUI is good for a demonstration but has poor performance. It should be optimized for interactivity.

SteeleNivenson at 00:40, 1 June 2017

2017-06-01T00:40:25Z

← Older revision		Revision as of 17:40, 31 May 2017
Line 3:		Line 3:
	=== Project Ordi ===		=== Project Ordi ===

	This project is ~~planned as~~ a photobooth where a computer takes your picture and then draws it with a robot.		WE DID IT! Ordibooth got a Make Magazine Editor's Choice award! Two years in a row!

			This project is a photobooth where a computer takes your picture and then draws it with a robot.

	The project is named after and sponsored by a fictional retro-futurist company called Ordi. This is a potentially clumsy play on the French word for computer, ordinateur, which few outside of francophile countries are aware exists. The computer does most of the "magic" here, taking the photo and translating it into a half-toned path which is then drawn by a robot on a piece of paper.		The project is named after and sponsored by a fictional retro-futurist company called Ordi. This is a potentially clumsy play on the French word for computer, ordinateur, which few outside of francophile countries are aware exists. The computer does most of the "magic" here, taking the photo and translating it into a half-toned path which is then drawn by a robot on a piece of paper.

SteeleNivenson: /* Optical pipeline */

2017-06-01T00:39:29Z

Optical pipeline

← Older revision		Revision as of 17:39, 31 May 2017
Line 25:		Line 25:
	Lee started writing some [https://github.com/lazzarello/chdkptp/ software for a custom touchscreen GUI]. It is the primary user interface for the booth, though there's a possible alternative touch-screen native framework called Kivy that would require a from-scratch UI project. This is out of the scope for maker fair. Probably worth it in the long run, for many reasons.		Lee started writing some [https://github.com/lazzarello/chdkptp/ software for a custom touchscreen GUI]. It is the primary user interface for the booth, though there's a possible alternative touch-screen native framework called Kivy that would require a from-scratch UI project. This is out of the scope for maker fair. Probably worth it in the long run, for many reasons.

	There is a 3D printed power adapter for the camera and a [http://www.instructables.com/id/USB-Powered-Camera-PowerShot-Battery-Hack/ hacked battery pack] but both are for different models of battery. The camera expects 3.7V and ~~draws an unknown amount of current. The batteries max current storage is 700m amps. The camera could be powered from the 5V GPIO pin with a small voltage divider to drop~~ down to 3.7. It ~~should have [https://raspberrypi~~.~~stackexchange~~.~~com/questions/51615/raspberry-pi-~~power~~-limitations enough current available]~~.		There is a 3D printed power adapter for the camera and a [http://www.instructables.com/id/USB-Powered-Camera-PowerShot-Battery-Hack/ hacked battery pack] but both are for different models of battery. The camera expects 4.3V and shuts down at < 3.3V. It expecte 0.800 amps to power on, but normalizes at about 0.200 amps. Lee bought two DC coupler power units, one refurb canon official and another a chinese replica. Both work well. The DIY adapter did not work reliably, for unknown reasons.

	=== Rendering pipeline ===		=== Rendering pipeline ===

SteeleNivenson: /* Networking */

2017-06-01T00:36:46Z

Networking

← Older revision		Revision as of 17:36, 31 May 2017
Line 17:		Line 17:
	To solve the file transport problem with a minimum of custom software, the [https://wiki.archlinux.org/index.php/SSHFS sshfs FUSE module] is used. A directory on the minimac is "exported" to the rpi. In reality there was a public/private key relationship established between the two hosts and the rpi mounts a directory from the minimac via sshfs.		To solve the file transport problem with a minimum of custom software, the [https://wiki.archlinux.org/index.php/SSHFS sshfs FUSE module] is used. A directory on the minimac is "exported" to the rpi. In reality there was a public/private key relationship established between the two hosts and the rpi mounts a directory from the minimac via sshfs.

	The minimac is notified of editions to this directory with a [https://github.com/tmc/watcher small program that watches a directory for changes]. It executes an arbitrary command when an event is triggered. In this case it will desaturate the image [http://www.graphicsmagick.org/ with graphicsmagick] and open it in the stipplegen rendering program.		The minimac is notified of editions to this directory with a [https://github.com/tmc/watcher small program that watches a directory for changes].

	=== Optical pipeline ===		=== Optical pipeline ===

Jarrod at 07:29, 17 May 2017

2017-05-17T07:29:47Z

@@ Line 3: / Line 3: @@
 === Project Ordi ===
-This project is planned as a photobooth where a computer takes your picture and then draws it with a robot in a separate kiosk.
+This project is planned as a photobooth where a computer takes your picture and then draws it with a robot.
 The project is named after and sponsored by a fictional retro-futurist company called Ordi. This is a potentially clumsy play on the French word for computer, ordinateur, which few outside of francophile countries are aware exists. The computer does most of the "magic" here, taking the photo and translating it into a half-toned path which is then drawn by a robot on a piece of paper.
 == Software pipelines ==

Jarrod at 08:59, 16 May 2017

2017-05-16T08:59:07Z

← Older revision		Revision as of 01:59, 16 May 2017
Line 1:		Line 1:
	[[File:OrdiBooth-Sophistiqué.jpg\|~~1024px~~\|right]]		[[File:OrdiBooth-Sophistiqué.jpg\|640px\|right]]

	=== Project Ordi ===		=== Project Ordi ===

Jarrod at 08:58, 16 May 2017

2017-05-16T08:58:46Z

← Older revision		Revision as of 01:58, 16 May 2017
Line 3:		Line 3:
	=== Project Ordi ===		=== Project Ordi ===

	This project is planned as a photobooth where a computer takes your picture and then draws it with a robot in a separate kiosk~~. The booth and kiosk are being designed in an [https://en.wikipedia.org/wiki/Art_Nouveau Art Nouveau] (primarily Paris Metro) styling with the goal of these being attractive objects on their own~~.		This project is planned as a photobooth where a computer takes your picture and then draws it with a robot in a separate kiosk.

	There are two overall parts to this poject, for now, they are called the '''Système''' and the '''Boites'''.		There are two overall parts to this poject, for now, they are called the '''Système''' and the '''Boites'''.

Jarrod at 08:45, 16 May 2017

2017-05-16T08:45:24Z

← Older revision		Revision as of 01:45, 16 May 2017
Line 1:		Line 1:
	[[File:OrdiBooth-Sophistiqué.jpg\|1024px]]		[[File:OrdiBooth-Sophistiqué.jpg\|1024px\|right]]

	=== Project Ordi ===		=== Project Ordi ===