Low force snaps for easy assembly\dis-assembly of mating parts: Difference between revisions

Revision as of 14:40, 4 December 2014

Low force snaps

Project developed by Jacob Gerdt

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Abstract

There is a pretty simple idea behind this OSAT project and concept is straight forward. A simple snap system that can be used in multiple ways. Something like a snap system might not seem like much but think of the idea when you don't have retail outlets close to you. Snaps can be used in a variety of ways; shirts, coats, satchels or bags, or any other system that would be desired to hold together. This simple idea of a snap system and the varities of of uses make this an aopporiate OSAT project. This snap system can be ultered to be size appropriate for the job it is needed for. This design is based off of a sew in style, has holes to be attached by sewing, and has a peg system similar to that of legos. This style is simple b ut effective and doesn't need large forces to manipulate them but strong enough to hold together.

Design recap

Two peice stsyem utilizing male and female mating system
Male peice has the peg system
Female has the hole system
Sew in style installation
Easy to snap but snap holds strong
Simple, clean, effective

Bill of Materials

3-D printer
OpenScad
PLA filiment

Tools needed for fabrication of the OSAT

MOST Delta RepRap or similar RepRap 3-D printer
OpenScad or other Cad software http://www.openscad.org/

Skills and Knowledge Necessary to Make the OSAT

Basic knowledge of your 3-D printer and software used to make the model

Technical Specifications and Assembly Instructions

Download the files listed above
Prep your printer and load the .stl file and slice into a .gcode file
Print snaps, clean, and get ready of installation
Once the snap system is printed, attach to desired surface using any sort of string, yarn,thread, or any other material that can be used in a sewing fashion. Once the snaps are attached to their designated postions, snap together.

Print time will vary on size of snaps

   Original file: 21 minutes  
   .75 Scale: 5 minutes

Assembly time we be the amount of time it takes to sew into place

   Approximatly 2 minutes

Common Problems and Solutions

Mating together

The peg length is important to ensure that the two paices stay mated together
The pegs on the male piece and the holes in the female piece need to have the correct allowance to they are easy enough to snap together but able to stay snapped together

Cost savings

Estimate your costs

40mm snap set

3117mm of filament approximately 35 minutes
$0.28 per set

30mm snap set (30mm)

1539mm of fillament approximately 18 minutes
$0.14 per set

Find a commercial equivalent 4 piece snaps 30mm sew on snaps $3.64/per set http://www.amazon.com/Dritz-Sew-On-Snaps-30-Mm-Black/dp/B0016ZZRYM/ref=pd_sim_ac_5?ie=UTF8&refRID=01DAP2P4NDWQ13XDGYE2

40mm set = 92.31% savings
30mm set = 96.15% savings

References

My own knowlegde of snaps and design concept
http://www.amazon.com/Dritz-Sew-On-Snaps-30-Mm-Black/dp/B0016ZZRYM/ref=pd_sim_ac_5?ie=UTF8&refRID=01DAP2P4NDWQ13XDGYE2
http://www.toybuilderlabs.com/blogs/news/13053117-filament-volume-and-length
http://zenikinetic.com/filament/

@@ Line 10: / Line 10: @@
 ==Abstract==
-There is a pretty simple idea behind this OSAT project and concept is straight forward. A simple snap system that can be used in multiple ways. Something like a snap system might not seem like much but think of the idea when you don't have retail outlets close to you. Snaps can be used in a variety of ways; shirts, coats, satchels or bags, or any other system that would be desired to hold together. This simple idea of a snap system and the varities of of uses make this an aopporiate OSAT project. This snap system can be ulters to be size appropriate for the job it is needed for. This design is based off of a sew in style, has holes to be attached by sewing, and has a peg system similar to that of legos. This style is simple b ut effective and doesn't need large forces to manipulate them but strong enough to hold together.
+There is a pretty simple idea behind this OSAT project and concept is straight forward. A simple snap system that can be used in multiple ways. Something like a snap system might not seem like much but think of the idea when you don't have retail outlets close to you. Snaps can be used in a variety of ways; shirts, coats, satchels or bags, or any other system that would be desired to hold together. This simple idea of a snap system and the varities of of uses make this an aopporiate OSAT project. This snap system can be ultered to be size appropriate for the job it is needed for. This design is based off of a sew in style, has holes to be attached by sewing, and has a peg system similar to that of legos. This style is simple b ut effective and doesn't need large forces to manipulate them but strong enough to hold together.
-# Picture of completed print using [[image:name-of-your-image.png|500px|right]]
+Design recap
+# Two peice stsyem utilizing male and female mating system
+# Male peice has the peg system
+# Female has the hole system
+# Sew in style installation
+# Easy to snap but snap holds strong
+# Simple, clean, effective
+{{Gallery
+|title=Low force snaps
+|Image:compar2.jpg|Comparison of two sizes
+|Image:larger1.jpg|40mm snap
+|Image:smaller1.jpg|30mm snap
+}}
 == Bill of Materials==
@@ Line 19: / Line 32: @@
 #PLA filiment
-#STL file
+*[[File:snap_4.stl]]
-#OpenScad file
+*[[File:femalesnap_4.stl]]
+*[[File:snap.scad]]
+*[[File:femalesnap.scad]]
 == Tools needed for fabrication of the OSAT==
@@ Line 27: / Line 42: @@
 == Skills and Knowledge Necessary to Make the OSAT ==
-* If you used special skill – link to relevant wikipedia or wikiversity articles/courses
+* Basic knowledge of your 3-D printer and software used to make the model
 == Technical Specifications and Assembly Instructions==
-# Provide directions for print/assembly - be detailed enough in your “how to” to ensure that someone could construct the device from your description. Consider the elegance of IKEA like instructions.
+#Download the files listed above
-# Include print time estimate
+#Prep your printer and load the .stl file and slice into a .gcode file
-# Include assembly time estimate
+#Print snaps, clean, and get ready of installation
-# Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
+#Once the snap system is printed, attach to desired surface using any sort of string, yarn,thread, or any other material that can be used in a sewing fashion. Once the snaps are attached to their designated postions, snap together.
-# Consider video if appropriate
+* Print time will vary on size of snaps
-{|style="border:1px solid #73BF73; background-color: #E6FFE6; margin-left:.1em; margin-top:2px; -moz-border-radius:15px;" align="right" width="150px"
+    Original file: 21 minutes
-!<big>Example video summary of textbook</big>
+    .75 Scale: 5 minutes
-|-
+* Assembly time we be the amount of time it takes to sew into place
-|<center>{{#widget:YouTube|id=yiJDx9dCfEQ}} </center>
+    Approximatly 2 minutes
-|-
-|}
 === Common Problems and Solutions===
-* Include common mistakes/problems to avoid in building your OSAT and how to overcome them
+Mating together
+* The peg length is important to ensure that the two paices stay mated together
+* The pegs on the male piece and the holes in the female piece need to have the correct allowance to they are easy enough to snap together but able to stay snapped together
 == Cost savings==
-* If your solution is not a low cost one then it is not really appropriate.
+Estimate your costs
-# Estimate your costs
+# 40mm snap set
-# Find a commercial equivalent
+* 3117mm of filament approximately 35 minutes
-# Calculate $ savings and % savings
+* $0.28 per set
+# 30mm snap set (30mm)
+* 1539mm of fillament approximately 18 minutes
+* $0.14 per set
+Find a commercial equivalent
+piece snaps 30mm sew on snaps $3.64/per set
+http://www.amazon.com/Dritz-Sew-On-Snaps-30-Mm-Black/dp/B0016ZZRYM/ref=pd_sim_ac_5?ie=UTF8&refRID=01DAP2P4NDWQ13XDGYE2
+* 40mm set = 92.31% savings
+* 30mm set = 96.15% savings
 ==References==
-* The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <nowiki> <ref> </ref> and <references/>  </nowiki>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: <ref> web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html</ref>
+# My own knowlegde of snaps and design concept
+# http://www.amazon.com/Dritz-Sew-On-Snaps-30-Mm-Black/dp/B0016ZZRYM/ref=pd_sim_ac_5?ie=UTF8&refRID=01DAP2P4NDWQ13XDGYE2
-<references/>
+# http://www.toybuilderlabs.com/blogs/news/13053117-filament-volume-and-length
-<nowiki>
+# http://zenikinetic.com/filament/
-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 [[Category:Water]]. Be sure to categorize your device so that it will be easy to find – for example “Low voltage connection basics” is categorized in
 [[Category:How tos]]
 [[Category:fittings]]
+[[Category:3D printing]]
+[[Category:OSAT 3D-Printable Designs]]