Wood WorkingClamp Parts.png
FA info icon.svgAngle down icon.svgProject data
Authors Karan C Dhankani
Location Michigan, USA
Status Designed
Prototyped
Made Yes
Replicated Yes
Cost 5.00
Uses development, industry, hobbyism
OKH Manifest Download

With a modular setup, this device can be used as multiple tools in one. Main applications could be for people from third world countries where there is minimal automation. A shovel helper grip attachment could save a lot of effort by transferring some of the load from the user's back to the well gripped other hand. This in-turn results into lesser fatigue and more productivity.

Also, the Leaf Claws attachment can function as a big sized leaf collector hand or as even a shovel for damp yards. These type of attachments could also be used to reach certain areas (eg: for maintenance purposes in sanitation) where use of bare hands could have caused infections.

Bill of Materials[edit | edit source]

  1. 3 bolts: 5/16 inch diameter with approx 5 cm length: 38 cents x 3 = USD 1.14
  2. 3 Nuts that fit into those bolts: 21 cents x 3 = USD 0.63
  3. Hair band / Rubber band: Free?
  4. PLA filament: Approx 50 x 3 grams = USD 3.2

The STL files and FreeCAD files for the parts can be found here:

Tools needed[edit | edit source]

  1. MOST Delta RepRap or similar RepRap 3-D printer

Skills and knowledge needed[edit | edit source]

  • Knowledge of FreeCAD and Cura

Technical Specifications and Assembly Instructions[edit | edit source]

To Assemble:

  1. Download the part files provided above in the bill of materials
  2. Convert stl files to gcode using software like Cura
  3. Print all of the Parts
  4. Attach a hair band / rubber band with the handle arm to make it a comfortable grip on the user's wrist
  5. Connect the interlocking jaws of whichever tool you want to use
  6. Secure with nut and bolt

Time:

  • Total print time estimate: 5 hours
  • Total assembly time estimate: 3 minutes

Common Problems and Solutions[edit | edit source]

  • One must be careful of your printer radius and calibration as a couple of those parts only just fit into my Delta: check how thw first couple of layers print and shrink the models if needed (all be same amount)
  • Sticking to the bed could be a common problem in case of such large prints: Use high quantities of washable glue on bed before printing

Cost savings[edit | edit source]

  1. Cost Estimate: USD 5 for two tools
  2. Equivalent products in market cost: USD 33 (Backsaver grip: USD 13 and Leaf claw: USD 20)
  3. Net savings achieved: USD 28

References[edit | edit source]

  • The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the and <references />tags and can be in any format but should include all the information necessary for someone else to find the same information you did. For example:[1]
  1. web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://web.archive.org/web/20021201231338/http://www.eren.doe.gov:80/erec/factsheets/landscape.html
FA info icon.svgAngle down icon.svgPage data
Keywords 3d printing, backsaver, gardening, leaf claw, modular arm, osat, yard work, pla filament
SDG SDG03 Good health and well-being, SDG08 Decent work and economic growth
Authors Karan C Dhankani
License CC-BY-SA-4.0
Language English (en)
Related 0 subpages, 4 pages link here
Impact 260 page views
Created December 8, 2015 by Karan C Dhankani
Modified October 23, 2023 by StandardWikitext bot
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