~~DISCUSSION~~ ~~REVEAL~~ {{background>:workshops:prototypes:20180626_182733.jpg}} ======Laser cut lampshade Summer Festival edition====== {{workshops:prototypes:2022-23delivery-lasercutcovers:20180626_182733.jpg?direct&600|}} ~~AUTHORS~~ ===== Summary ===== Ever wondered how things at home are designed? In this workshop, you will use a laser cutter to cut a lampshade design. You’ll walk away with a working lamp, your unique lampshade and some design skills. Participants will need to wear flat, enclosed shoes. =====Outcomes==== * Basic bitmap image processing using GIMP. * Bitmap to vector conversion using Inkscape. * Preparation for Laser Cutting using Corel Draw. * Assembly and **take-home** of a laser cut lamp. ==== Tools ==== - [[https://www.gimp.org/|Gimp]] for image clean-up and processing - [[https://inkscape.org/en/|Inkscape]] for bitmap tracing and vector editing - [[https://www.coreldraw.com/en/|Corel Draw]] for final checks and laser layout. - [[facilities:fablab:equipment-cots:rayjet300:start|Rayjet laser cutter]]. ====Materials and Resources==== * A selection of public domain images sourced from the [[https://www.metmuseum.org/art/collection/search#!?offset=0&pageSize=0&sortBy=Relevance&sortOrder=asc&perPage=20|metmuseum]], found under [[https://www.metmuseum.org/art/collection/search#!?material=Paper&showOnly=withImage&offset=0&sortBy=Relevance&sortOrder=asc&q=silhouette&perPage=20&pageSize=0|silhouttes]]. * Corel Draw {{ workshops:prototypes:2022-23delivery-lasercutcovers:lamp_template.cdr |template}} for the lamp outline. * One 720 x 430mm sheet of 3mm single ply cardboard * One [[https://www.ikea.com/au/en/catalog/products/90371440/|Strala]] * One [[https://www.ikea.com/au/en/catalog/products/60305748/|Ryet]] or similiar. ====== Workshop Outline ====== //10min// * Welcome * Demo of the laser, lamp and assembly. * What makes a silhouette? * What breaks a silhouette? * Silhouette examples.. ====Is this a Silhouette? ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp170795.jpg?direct&400 |}} ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:is1993.67.2.r.jpg?direct&400 |}} ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp816827.jpg?direct&400 |}} ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp145633.jpg?direct&150 |}} ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp149259.jpg?direct&400 |}} ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:lc-cp63_001.jpg?direct&600 |}} ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp145656.jpg?direct&600 |}} ===== FOSS ===== Intro to designing for Laser cutting in FOSS -// 10min// *What is FOSS. *When to use FOSS *When to use non-FOSS *What is GIMP and Inkscape? *What is Coreldraw? =====Pick a Silhouette===== Chooses an artwork to work on. Use theses rules to inform your choice. *5 minutes cutting per lamp *One feature per lamp * other panels can be blank or windowed ==== ==== {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp170795.jpg?direct&80 |}} {{ workshops:prototypes:2022-23delivery-lasercutcovers:is1993.67.2.r.jpg?direct&80 |}} {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp816827.jpg?direct&80 |}} {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp145633.jpg?direct&25 |}} {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp149259.jpg?direct&80 |}} {{ workshops:prototypes:2022-23delivery-lasercutcovers:lc-cp63_001.jpg?direct&80 |}} {{ workshops:prototypes:2022-23delivery-lasercutcovers:dp145656.jpg?direct&80 |}} =====Introduction to Gimp ===== // Basic bitmap processing to produce a two colour image - 15 min// * Open chosen image in GIMP * Selection and Navigation tools * crop * brightness and contrast * Blur and unsharp * convert to grayscale * posertize * export as a jpg. =====Introduction to Inkscape===== // Import to Inkscape and Convert to Vectors - 20 min// * Selection and Navigation tools * Trace bitmap tool * select best single scan method * adjust options (speckles, corners and paths) * Process and close * Export as PDF =====Prepare for Cut in Corel Draw==== Editing - //20min// *Trim the fat - be ruthless * small shapes won't drop out * complex shapes will break * complex shapes take too long to cut ====Process==== *Grab the{{ workshops:prototypes:2022-23delivery-lasercutcovers:lamp_template.cdr | template}} and open in CorelDraw. *Import your artwork PDF *Get familiar with the selection and navigation tools *Scale your artwork up to reduce complexity *Use the shaping controls to trim or cut by combining shapes *Use the Shape tool (F10) to * access individual points to correct glitches * **reduce nodes** (in the menu bar) * use the curve **smoothness slider** (in the menu bar) * Drag your artwork to a panel ====Laser Ready checks==== Check all colours are on the rayjet pallete {{ facilities:fablab:equipment-cots:rayjet300:rgb_process_colours.png }} ==== ==== * Check line widths are all **hairline** * Save your design as a CDR (CorelDraw) file onto the facilitators USB stick. **AS VERSION 17**((the laser cutter PC uses version 17 of Corel Draw)) ===== Cutting and Assembly ====== - Your facilitator will cut your design on the laser cutter - Remove your sheet from the laser cutter - Vacuum loose cardboard from the laser cutter bed - Weed your lamp (remove cut shapes) - Grab a light fitting and bulb - Assemble - Take home and enjoy! ===== Files ====== Pre-packed ..:..:..:..:summerfestival:mod_your_space:diy_lampshade..:..:..:2022-23delivery-lasercutcovers:summerfestival:mod_your_space:diy_lampshade{{|zip}} file containing raw jpgs and Corel files. ====Laser settings==== * Silhouette 50 Power 2 speed * Cut 25 Power 2 Speed * Score 15 Power 2 Speed =====Examples====== {{ workshops:prototypes:2022-23delivery-lasercutcovers:summerfestival:mod_your_space:diy_lampshade:gate_art_n.zip |}}