The RepRap motto is "wealth without money" - for this assignment you are to create wealth by making an open source design that has value to you. It must be 3D printable on your Jellybox and cost less than a commercial equivalent (if such a thing exists).

Assignment[edit | edit source]

  1. Design something of "high value" that you can 3D print on your Jellybox
  2. Make sure someone else has not already done it - search and
  3. Design 3D printable components with ANY CAD program but the use of OS CAD programs (e.g. OpenSCAD, FreeCAD, or Blender) earns extra credit points
  4. Create an account at or
  5. Upload your design under an OS license to or - include: Source files, STLs, a picture, and a brief description including costs and $ savings (make sure you make the duration forever) If not using SCAD or Blender - upload your CAD model in a zip file.
  6. Add picture, link to your Libre3d or Thingiverse page with name, commercial equivalent link+cost, and economic savings to table below (see example).
  7. Print component and bring to class - Complete and due by last day of classes this semester

Grading[edit | edit source]

  • 30% Print quality
  • 20% Documentation
  • 50% Design (design for printing, aesthetics and function)

Automatic reductions:

  • 50% no source
  • 10% per day for late

Table of Value[edit | edit source]

2023[edit | edit source]

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost Approximate Savings in US$

Kesiena Berezi

Bracelet Stand $35.40 This is a reliable piece that can cost less than $6 cents worth of PLA. It could retail for about $20 dollars a piece
Grad-coaster-2.jpg Brad Mulwenge Cup Coaster $10.00 This is a reliable piece that can cost less than 50 cents worth of PLA. It could retail for about 3 dollars a piece
Custom Homerun Ball Stand.jpg Ryandamico Homerun Ball Stand $14.99 Cost of ball stand was around $0.37 each, but I sold 13 of them for $5 each, profiting a total of $62. $15 - $20 ($5 = 25% of price @ $20 market price)
$179 for the chocolate extruder syringe. The cost of the printable extruder part without the syringe would be 3 dollar retail price . The amount of filament used was worth $1 dollar hence making a 2 dollar profit.|}
Juliet mirambo

2019[edit | edit source]

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost -|PhoneHolder.jpg RachaelOstheim|[1]|Cost of it was probably around $3 to make, but I would retail it around $10-$15 depending on availability.|-|Chapel ornament.jpeg|Chapel Ornament|$12.95|Cost of ornament is 40 cents, savings of at least 96%!|-|Gauge Holder.JPG SammyKeller (talk) 20:59, 6 December 2019 (UTC)|Gauge Holder|[2]|about $28.70 (roughly 86%)|-|CheckerBoard.jpg|Customized Checker Board and Checkers|[3] about $12.25|cost for total PLA: $1.85 (85% savings!)|-|Photoholder.png|Customized Photo Holder|[4]|approx. $10 (50% savings)|-|Prin coaster.jpeg|Principia Coaster|$12 for 16 coasters ($0.75 each)|cost $0.46 (38% savings)|-|File:LightningNametag3.jpg|Lightning Charger Cord Name Tag|$28.99 for 1 3D Printed Nametag|cost to manufacture $0.09 @ 4.5 cents per gram of filament (99.67% savings)|-|Hanger end big money.png Hook big money.png Middle arm big money.png|[5]|commercial equivalent $10-$25 [6]|cost to manufacture $1.50 (roughly 10%-20% savings)|}

2018[edit | edit source]

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost -|XboxStand.jpg|Xbox One Controller Stand|[7]|$11.25 on average|-|Desktopdrawer.jpg|Desktop Drawer for 5.25 inch Drive Bay|[8], $20|$18|-|Outlet wall safe.jpg|Hidden Outlet Wall Safe|$5-20|Roughly $10 on average, depending on where the commercial product falls on the price range.|-|A cranford sharpie holder.jpg|Sharpie Marker Holder|competition marker holders, $15-20|~$17|-|BEDRISER.jpeg|Bed Riser|$5-22|On average about $15 saved|-|Keycaps.jpg|MX Cherry OEM Profile Keycaps library (OpenSCAD)|Commercial option: buy an entire set of keycaps for $20-40|Per cap cost to print: $0.04-0.08 (over 99% savings). Entire keyboard of 104 keys: ~$5.20 (~75% savings)|}

2017[edit | edit source]

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost -|Hangar.JPG|Multi-Hanger Clost Organizer|[9], $9|$8.50|-|Acoustic Phone Holder.jpg|Acoustic Phone Holder|[10], $50|$45|-|IPadProPencilStand.jpg|iPad Pro and Apple Pencil Stand|[11], $29.99|$27|-|Flowerwateringsystem.jpg|Flower Watering System|[12], $15.90|$14|-|IMG 0255.JPG|Hair Tie Bracelet|[13], $10.99|$10.87|-|IMG 8618.JPG|Elf Ear Jewelry|[14], $30-40|$38|-|Screen Shot 2017-05-05 at 1.43.52 AM.png|[15]|[16], $2.6 each|$2.4|-|Cufflinkfinal.JPG|[17]|[18], $19.99|$0.05|-|Hat holder.jpg|[19]|[20], $29.99|$0.80|-|DrainProtector.png|[21]|[22], $6.97|$3.87|-|DroneMountVTX.jpg|Drone Video Transmiter Mount|$3.99|$3.79|-|Image.jpg|Chapel Cookie Cutter|[, $8.99|$8.75|}

2015[edit | edit source]

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost -|Acoustic Phone Holder.jpg|Acoustic Phone Holder|[23], $50|$45|-|Laptopstand.jpg|Adjustable laptop stand|[24], $80|$50|-|Doublebanana.jpg|Double Banana Hook Bllafata (talk) 06:53, 19 November 2015 (PST)|[25], ~$17|$7 (not counting the cost of importing and time)|-|Uni-Troll Base.jpg|Uni-Troll Downrigger Base By: Connor Kmiec|[26], $23.99|$21.76|-|Free Float Handguard.jpg|AR15 Freefloat Handguard By: Austin Ketterhagen|[27], $99.99|$97.66|-|SkiWaxingVises.jpg|Ski Waxing Vises By: Matthew Andres|Power Pro Vise, $269.99|$233.96|-|-|BlowBackNozzleInternals.jpg|Prototype Reciprocating Blowback Nozzle|Typical Nozzle $25-85|$24-$84|-|Table saw insert.jpg|Delta Minimal Clearance Table Saw Insert By: Paul StLouis|[28], $33.23|$29.10|-|Cellphone Car Cup Holder.jpeg|Cellphone Car Cup Holder WayneHelminen (talk) 18:53, 9 December 2015 (PST)|[29], $13|~$9|-|Pong Paddle.jpeg|Ping Pong Paddle|[30], ~$6.49, for standard paddle|$5.20, plus never needing another paddle again|-|Glasses clip.jpg|Desk or Car Glasses Clip Accessory, User:Thomas Korejsza Cost of plastic $0.41|[31], Visor Clip $12.90|$12.49|-|Earring holder.jpeg|Earring holder Earring holder User:Dhwani (talk)|~$32|~$31|-|Microwave Gears.jpg|Microwave Gear Replacement Parts|[32], $2.80|$2.60|-|Bottle Tree Assembly.jpg|Bottle Drying Tree By: Robert Arden|~$20|~$18|-|IMAG0389.jpg|Euchre Score Board By: Hjhunt|~$10.00|~$9.06|-|Coat hook with slider base.jpg|Coat Hook with slider base

By: Handychandra7 (talk)|Depends on the material, ranging from $20 - $80|100 grams of PLA for ~$2, saving from $18 - $79 (90% - 97.5% savings)|-|20151209 185134 HDR.jpg|[33] By: User:Brhutchi (talk)|the full assembly costs around $40, 37 minutes to print, 5 minutes to clean part|12 grams of PLA for ~$0.30, savings around $39.70|-|9vbatterybox.jpg|Duel 9V Battery Box By: Mike Hartl|[34], $30|$28|-|Beerholder.jpg|Beerholder on Libre3D & Can Holder on Thingiverse with FreeCAD file|Comparable Bottle Holder, $9.99|61 grams of PLA for about 1.65 resulting in cost savings of $8.34|-|Potatomasher.jpg|Potato Masher By: Ethan Marshall|Commercial Potato Masher, $8.50|Cost of Printed Potato Masher is $0.61, Total Cost Savings is $7.89|-|Cat6Audio.jpg|Cat6 Audio End Point By:Paul Bristol|[35], $360|Cost of End Point: $43, Total Cost Savings: $317|-|With ties.JPG|Necktie Hanger By:Tyler Ernest|Tie Hanger, $16.29|$15.65|-|Toothbrush holder.jpg|Toothbrush holder By:Erik Bain|Commercial Equivalent, $7.59|Cost of toothbrush holder: $1.03, Total Cost Savings: $6.56|-|Phone Mount 4.jpg|Longboard Phone Mount By:William Venis|GOPRO SKATEBOARD RISER MOUNT, $31.58 Aluminum Alloy Skateboard Mount Holder for Gopro, $6.64|Cost of printed phone mount: $0.69, Total Cost Savings: $5.95 - $30.90|-|Modular Wine Rack.JPG|Modular Wine Rack By:Kevin Sunderland|Modular Wine Rack -low end, $29.99 - Modular Wine Rack - high end, $119.95|Cost of printed Modular Wine Rack: $9.50, Total Cost Saving: $20.49 - $110.45|-|Variable Holder Clamp.jpg|Variable Holder Clamp By:Adam Pringle|Headphone holder, $19.99|Cost of Variable Holder Clamp: $3.93, Total Cost Savings: $16.09|-|Extended Razor Stand Complete.jpg|Extended Razor Stand By:Klbarie (talk) 23:19, 9 December 2015 (PST)|No commercial equivalent multi-razor stand exists. Some vendors make custom artisan stands, $60|Cost of Extended Razor Stand: $3.40, Total Cost Savings: $56.60|-|KIndlecase.jpg|kindle case By:Ngtanike (talk) 00:16, 10 December 2015 (PST)|, 15$|Cost of Kindle case: $3, Total Cost Savings: $12|-|Pocket Pegs.JPG|Pocket Peg Triangle Game|There is a larger size available to buy at wooden triangle peg game for,$2.69. I havent been able to find a pocket size version.|$2.11 (78%)|-|Mossberg 500 Accesories.jpg|Mossberg 500 Accesories|Grip $19.95, Picatinny Rail $14.99|Grip: $15.49, Picatinny Rail: $14.69|-|Rachelcookiecutter.jpg|Face Cookie Cutter|Custom Cookie Cutter, $50.77|$50.54 (99.5%)|-|Toothbrush Stand.jpg|Toothbrush stand By: Shyam Sanjeevi|- Toothbrush stand, $9.99|Cost of Toothbrush Stand: ~$10, Total Cost Savings: $9 (90%)|-|Hockey Tape Dispenser.jpg|Hockey Tape Dispenser By: Hannah Powers|~$12 (Not currently available)|~$10 (83%)|-|Ornament rgb led.jpg|LED Christmas Ornament|[36], $20|~$13|-|Polish holder.jpg|Rocking Nail Polish Holder|Spill Proof Polish Holder on Amazon $11.45|$10|-|Autozoom mount.jpg|DSLR Automated Zoom Mount By:Derek Chopp|FFR-900 $249.95|$229.95|-|Controller holder.jpeg|TV Mounted Contoller holder|Commercial Equivalent: $20.00|Approximately $19.00|-|BatteryCup.jpg|APX->XTS series battery adapter By:Matthew Zawisza|NNTN8169A $51.98|$51.97|-|Coming Soon!|2-Axis Gimbal System By:Spencer Allen|$240|Around $50 in savings compared to the listed example, though my design is considerably more capable.|-|Bottle Scoring Tool.JPG|[37] By:Austin Howland|[38], $49.99|$41.10|-|ChocolateMold.jpg|Customized Chocolate Mold By:Troy Johnston|~$40|~$38|-|Hanger Hook.JPG|[39] By:Zach Chenier|[40], $5.00|$4.45|-|Multipurpose cell-phone dock with slots for stationery and a pair of specs.jpg|Multipurpose stand for cell-phone, spectacles, stationery and tools By:Karan Dhankani|This also means that I could customize to exactly my cell-phone size and to the size of my pair of spectacles|Market Price(mainly because it's not easily available): $48|Savings - $46.5 (~97% savings)|-|Wheel andguards.JPG|Longboard bearing rust, debris and water guard By:Pjgoreck (talk)|There is currently no commercial version of a longboard bearing rust, debris and water guard. The model is parametric and can be fitted to any wheel size. The size it is altered to will affect the cost slightly.|Plastic Cost: Aprox. $1|-|777 Big money Folding table.png|Longboard bearing rust, debris and water guard By:Pratiksha Rakhe|A modifiable laptop table with table top and stand. Can be attached with nut, bolts and hinges.|Savings - $40 (~80% savings)|}

2014[edit | edit source]

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost -|Hockey helper.JPG|Hockey Helper|Always unavailable but is $10.95|$9.98|-|1UPIncenseHolder.JPG|1UP Incense / Candle Holder|[41], Closest commercial equivalent -$8.99|$6.92|-|Arduino Wall Mount.JPG|Arduino Home Device Wall Mount|[42], Closest commercial equivalent is an enclosure - $4.50|$2.91|-|SplinedBottomBracketTool.JPG|Splined Bottom Bracket Tool|Park Tool bike tools BBT-32C bottom bracket key - $10.76|$0.42|-|TP pic.jpg|Toilet Paper Holder|$4.99|$4.00|-|Mens Restroom Sign.jpg|Libre3D Men's Restroom Sign|Restroom Signs - Pair=$364.00

[49], 25.00 for each, 4 in total [50], 13.99 [51], 11.99|$350.00|-|IceScraper.jpg|Ice Scraper|[52],$6.40 to $15.00|$6.00 to 14.60|-|3dsstand.jpg|Nintendo 3DS XL Stand|Commercial 3DS Stand - $12.95|$11.11|-|Guitar Tone Knob.jpg|Guitar Tone Knobs|[53]$7.29 for tone knob set|$7.00|-|WCL.jpg|Winter Carnival Letters and Punctuation|[54] $11.60 for Paraffin Wax [55] $9.96 for 64 Pack Crayons|Estimated $100 savings over their predicted 10-15 year lifespan.|-|Arctic Cat Intake.JPG|3D Printed Snomobile Air Intake|Commercial product,$69.99|$67|-|PB 4.JPG|Powder Baskets|Commercial Baskets,$21.95|$20|-|Vinyl Stand.PNG|Individual Vinyl Record Stand|There are no/very few commercially equivalent products. Approximate cost for a product such as this would be $5 - $12.|$4.20 - $11.20|-|Twfuller ginger grater.jpg|Ginger Grating Plate|Various commercial offerings for as much as $12-15|~$10|-|IMG 20141210 160108.jpg|Open-Source ORV Light|Replacement of rotting case varies from $25-$100 depending on original lamp.|~$20-$95|-|FullSizeRender (1).jpeg|Snowboard binding degree plate|Commercial product, $10-$20|~$8.22-$18.22|-|Lwilderbig$.jpg|Sink Adapter|N/A, no commercial equivalent available|No burned or frozen hands|-|Soccer shin guard.jpg|Soccer Shin Guard|[56], $19|$17.68|-|Dock MotoG2.jpg|Moto G2 Dock. Made by User:Ab91|No actual Commercial equivalent available. Closest is this, but only half of mine. $5-6.|~$4-5.|-|Parametric Sax Mouthpiece.jpg|[57] Parametric Saxophone Mouthpiece|[58], $35, There are a few .stl files for alto and tenor saxophone, but none with parametric code. This allows quick modification of dimensions for different saxophones, as well as for changing the tone the instrument produces.|$34|-|Wimms.jpg|Custom Case|A blank case like this This has no holes drilled. Custom ordering requires time and money.|~$5-$200+|-|Propeller.JPG|Customizable Propellers|Normally costs $1 per propeller.|~$0.95|-|Tattoo gun.jpg|[59] Tattoo Gun|Normally between 70-400|~$67-397|-|IMG 2040.JPG|[60] wine glass hanger|[61],$100-$189|$94.30-$183.3|-|Aircraftframe.png|[62] Aircraft model frame|[63],Commercial equivalence depends on size and should be more than $10|~$7|-|Crochet.png|Crochet Hook Holder for Single-Handed Crocheting|No commercial version currently exists but generic work holders cost about $20 on amazon.|$7|-|TabletStand.jpg|Tablet Stand and bluetooth keyboard|Many commercial versions exists like this one, but tend to be design for a specific tablet.|$19.34-$59.34|-|ChristmasTreeStand.JPG|Christmas Tree Stand|[64], $22.99|$19.08 (base is made from a recycled shipping pallet)|-|Printiverse.png|Printiverse|[65], Expen$ive|$Cheaper (The cost of a printer?)|-|Tiered stand.jpg|Tiered Jewelry Stand|[66] $20|$18.15|-|Bread Slicing Guide.jpg|Bread Slicing Guide|[67], $57.99|$56.56 (base is made from a scrap hardwood board)|-|MTU DESK1.png|[68] MTU Desk Accessory|[69] $23.99|$23.6|-|Prop front shane.jpg|[70] Trolling Motor Replacement Prop|Minnkota replacement prop[71] $39.99|$32.49|-|Yoke Cover.jpg|[72] Airplane Yoke Cover|Full Yoke $150.|Cover costs $0.33|-|Physical-Photoresistor-Regulating-Device.JPG|Physical Photoresistor Regulating Device|New Light: $80+.|Plastic Cost: <$0.75|-|Fairlead1s.PNG|[73] Hawse fairlead for snowboard winch|Fairlead $1.80|Cover costs $0.86|-|Heliostat Pankaj.jpg|Heliostat for tracking sun!|Heliostat $60-$80|$30-$50|}

FA info icon.svgAngle down icon.svgPage data
Authors Marie Farson, Pierson Gill, Kesiena Berezi, NoahStewart, Ryan D'Amico, Brad Mulwenge, SammyKeller, Blake Peters
License CC-BY-SA-3.0
Language English (en)
Related 0 subpages, 13 pages link here
Impact 800 page views
Created October 31, 2016 by Marie Farson
Modified May 15, 2023 by JULIET MIRAMBO
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