777 Big Money Project

From Appropedia

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 MOST Delta and cost less than a commercial equivalent (if such a thing exists).


  1. Design something of "high value" that you can 3D print on your MOST Delta
  2. Make sure someone else has not already done it - search http://www.yeggi.com/
  3. Design 3D printable components with ONLY OS CAD packages (e.g. OpenSCAD, FreeCAD, or Blender)
  4. Create an account at http://www.libre3d.com/
  5. Upload your design under an OS license to Libre3D - include: Source files, STLs, a picture, and a brief description including costs and $ savings
  6. Add picture, link to your libre3D 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 12/11


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

Automatic reductions: -50% no source or the use of non-OS software -10% per day for late

Table of Value

Digital Photo Free Design/Link to Libre3D Commercial equivalent/Cost Approximate Savings in US$
Laptopstand.jpg Adjustable laptop stand [1], $80 $50
Hockey helper.JPG Hockey Helper [2]-Always unavailable but is $10.95 $9.98
1UPIncenseHolder.JPG 1UP Incense / Candle Holder [3], Closest commercial equivalent -$8.99 $6.92
Arduino Wall Mount.JPG Arduino Home Device Wall Mount [4], 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.jpg Libre3D Toilet Paper Holder [5] - $4.99 $4.00
Mens Restroom Sign.jpg Libre3D Men's Restroom Sign Restroom Signs - Pair=$364.00

-->Individual (1/2 Pair)=$182.00

Four point probe.jpg Open-Source Four Point Probe (OS-4PP) [6], $7300 $1700
Tool for hunting.JPG Open-Source Hunting Tool [7], $7.89 $7.20
Oven sheath.jpeg Spatula Sheath [8], $9.95 $9.15
Pumpclip.JPG Insulin Pump Clip Connector [9], $19.95 $19.90
Custom T-Shirt.jpeg 3D Printed Custom T-Shirt [10],$5.99 to $24.99 $5.71 to 24.71
Repetier z Probing.png MOST DELTA Auto Bed Leveling This Project does not save money but time. The average time it takes for someone to level their bed takes approximately 2 to 4 hours. After the bed levelling system is set up it takes approximately 5 minutes to have the bed levelled.
MTUDivotRemovalTool.JPG Michigan Tech Divot Removal Tool Callaway Divot Removal Tool - I have found custom divot tools like this sell between $2.75 and $20.00 (depending on who the market is being sold to). $2.63 to $19.87
Batman's Equipment.JPG [[11]|Batman's Equipment] [12], 259.00

[13], 25.00 for each, 4 in total [14], 13.99 [15], 11.99

IceScraper.jpg Ice Scraper [16],$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 [17]$7.29 for tone knob set $7.00
WCL.jpg Winter Carnival Letters and Punctuation [18] $11.60 for Paraffin Wax

[19] $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 [20], $19 $17.68
Dock MotoG2.jpg Moto G2 Dock No actual Commercial equivalent available. Closest is this, but only half of mine. $5-6. ~$4-5.
Parametric Sax Mouthpiece.jpg [21] Parametric Saxophone Mouthpiece [22], $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 [23] Tattoo Gun Normally between 70-400 [24] ~$67-397
IMG 2040.JPG [25] wine glass hanger [26],$100-$189 $94.30-$183.3
Aircraftframe.png [27] Aircraft model frame [28],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 [29], $22.99 $19.08 (base is made from a recycled shipping pallet)
Printiverse.png Printiverse [30], Expen$ive $Cheaper (The cost of a printer?)
Tiered stand.jpg Tiered Jewelry Stand [31] $20 $18.15
Bread Slicing Guide.jpg Bread Slicing Guide [32], $57.99 $56.56 (base is made from a scrap hardwood board)
MTU DESK1.png [33] MTU Desk Accessory [34] $23.99 $23.6
Prop front shane.jpg [xxx] Trolling Motor Replacement Prop Minnkota replacement prop[35] $39.99 $32.49
Yoke Cover.jpg [36] 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
MediaWiki spam blocked by CleanTalk.