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== Technical Specifications and Assembly Instructions==
== Technical Specifications and Assembly Instructions==
[[Image:Slicing berry comb.PNG|200px|right]]
# Customize & Print 2 copies of the Hemostats
[[Image:Berry Picker Parts.jpg|200px|right]]
* It is recommended to print around 30 mm/s with a 100% infill
# Cut the bottom of the milk jug off
# Orient the two printed pieces so that:
## Cut two slits up the flatter corners of the milk jug on either side of the handle up to where the bottle starts to bend to the top
## The holes align
## Cut along the part where it starts to bed to cut off the side of the milk jug. This will be where the comb attaches to the milk jug
## The finger holes of the prints are on opposite sides
# Print the main comb as shown:
## Locking wedges are pointing toward each other for proper engagement
## I recommend printing at least 2 lines for the wall and at least 20% infill
# Insert bolt into hole. (Direction does not matter)
## My printer has a nozzle size of 0.4mm so a wall thickness of at least 0.8mm
# Engage the nut onto the bolt.
## With layer height = 0.2mm, line width = 0.4mm, infill = 20%, at 60mm/s the estimated print time is 2 hours 30 minutes and uses 28g of plastic 
# Tighten with very little force using a screw driver and a wrench. (Over tightening will the limit the ability of the hemostats.
# Print 4 pegs (or find 4 pegs)
== Common Problems and Solutions==
# Fit the milk jug into the slit in the comb, secure one side at a time with the pegs, tucking and trimming the excess "top" part of the jug to make the "back" part of the scoop catcher
* Make sure that the wedges that lock into each other are both wide enough and deep enough so that they do not break when you try and lock the Hemostats down.
[[Image:Berry Picker Scoop Back.jpg|200px|right]]
* Make sure the nut & bolt are loose enough to allow free movement of the hemostats.
=== Common Problems and Solutions===
* Make sure the all of the pieces are thick enough as to not bend under forces ('''minimum of 4mm thickness is recommended''')
* Sometimes the back part doesn't want to fold in to create the back nicely, you can cut along the seam of the jug more to give yourself more leeway in folding it
* It helps to pre-poke the milk jug with something sharp to make a starter hole before inserting the pegs first (I used a pen)


== Cost savings==
== Cost savings==

Revision as of 16:12, 6 December 2018

Hemostats

Project developed by User:Patrick Gilland

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Abstract

  1. Hemostats are a medical alternative to clamps. They are especially useful when the user only has one hand available or access to something from one side. This fully customizable 3-D printed option makes hemostats available to doctors in remote locations at a low cost.
  1. Picture of completed print using your printer
    Hemostat.jpg

Bill of Materials

NUT & BOLT DIMENSIONS MAY CHANGE WITH CUSTOMIZATION OF PRINT

Tools needed for fabrication of the OSAT

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. Phillips head screw driver
  3. 5.5 mm wrench

TOOL REQUIREMENTS MAY VARY BASED ON NUT & BOLT SELECTION

Skills and Knowledge Necessary to Make the OSAT

  • 3D Printing Knowledge & Capabilities
  • Understand the needs & application for the most efficient customization

Technical Specifications and Assembly Instructions

  1. Customize & Print 2 copies of the Hemostats
  • It is recommended to print around 30 mm/s with a 100% infill
  1. Orient the two printed pieces so that:
    1. The holes align
    2. The finger holes of the prints are on opposite sides
    3. Locking wedges are pointing toward each other for proper engagement
  2. Insert bolt into hole. (Direction does not matter)
  3. Engage the nut onto the bolt.
  4. Tighten with very little force using a screw driver and a wrench. (Over tightening will the limit the ability of the hemostats.

Common Problems and Solutions

  • Make sure that the wedges that lock into each other are both wide enough and deep enough so that they do not break when you try and lock the Hemostats down.
  • Make sure the nut & bolt are loose enough to allow free movement of the hemostats.
  • Make sure the all of the pieces are thick enough as to not bend under forces (minimum of 4mm thickness is recommended)

Cost savings

  1. 28g of PLA ($0.42 USD) + recycled milk jug (free)
  2. Compared to https://www.amazon.com/Metallic-Ergonomic-Picking-Swedish-Ivique/dp/B074JC6PL2/ref=asc_df_B074JC6PL2/?tag=hyprod-20&linkCode=df0&hvadid=216726582865&hvpos=1o1&hvnetw=g&hvrand=11381708582107255407&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9017742&hvtargid=pla-357566735718&psc=1 at $16.97
  3. Cost savings of 16.55 (97.5% cost savings)

Benefited Internet Communities

  • Name and add links to at least 5 using single brackets around [url name]

References

  • The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <ref> </ref> 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://www.eren.doe.gov/erec/factsheets/landscape.html

<nowiki> Based on the developmental needs addressed (e.g. food, heat, electricity, clean water, health care, etc.) be sure to label your device in the proper categories e.g. use. Be sure to categorize your device so that it will be easy to find – for example “Low voltage connection basics” is categorized in

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