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Scrub Brush

1,237 bytes added, 00:39, 9 December 2019
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==Abstract==
This is a scrub brush for cleaning what ever it is that needs a little elbow grease. It costs a fraction of commercially available scrub brushes. In less developed regions cleaning tools such as a scrub brush are indispensable. This brush is also customizable allowing any size brush to be made easily for any application. It is printed using a bridging technique. <ref> Spyder Byte – Bridging Techniques, SPYDER3D (Dec16, 2014) Available: https://www.spyder3dworld.com/spyder-byte-bridging-techniques/ </ref> This project was inspired by other fully 3d printable bristle designs <ref> Nail Brush - Fully 3D printed! , Turbo_SunShine (Jan 14, 2019) Available: https://www.thingiverse.com/thing:3355727</ref> <ref> Bouldering Brush v2, Turbo_SunShine (Feb 7, 2019) Available: https://www.thingiverse.com/thing:3410740</ref> <ref> Room Broom - Spyder3D World, 3DKreashunz(July 7, 2018) Available:https://www.spyder3dworld.com/item/room-broom/ </ref> <ref> Dust Brush & Pan (Fully 3D Printable), Superbeasti (Oct 1, 2019) Available: https://www.thingiverse.com/thing:3890384 </ref> <ref> Bridging: 3D Printed Paint Brushes - Spyder3D World, 3DKreashunz (July 7,2018) Available: https://www.spyder3dworld.com/item/3d-printed-paint-brushes/ </ref> <ref> Master Jedi YodaHawk - Spyder3D World, 3DKreashunz (July 7,2018) Available: https://www.spyder3dworld.com/item/master-jedi-yodahawk/ </ref> . Note, some of these designs such as the broom are not OSATs as they are more costly to print than their commercial equivalents.[[Image:OSAT_brush_thumbnail.jpg|200px|right]]
== Bill of Materials==
== Technical Specifications and Assembly Instructions==
#Download desired .stls from thingiverse.com
# Cura Print Settings##Scale to 101% so G-code will slice bristles[[Image:OSAT_brush_print.jpg|200px|right|thumb| Finished full size brush print]]
## Set layer height to 0.3 mm if using uncostumized bristles
##1.0 wall thickness##1.08 top/bottom wall thickness## Enable "Print thin walls"##Random z-seam alignment##At least 2520% infill##224 deg C default temp
## Set default print speed to 60 mm/s
## Enable Combing mode: All##Deselect "Print thin wallsAvoid Printed Parts When Traveling"
## Disable support
## Enable bridge settings
###Bridge skin threshold: 70%
###Bridge wall casting: 0%
###Bridge wall speed: 30 25 mm/s###Bridge wall flow: 108105%
###Bridge fan speed: 100%
##Watch first couple layers to ensure bristles are printing properly[[Image:OSAT_brush_prep.jpg|200px|right|thumb|Tools to cut brushes apart|]]
###Try increasing bridge wall flow or decrease bridge wall speed if they seem disconnected from one side
# The smaller test brush OSAT_scrub_brush_1.stl from thingivrese.com takes ~3 hours to print##Use it to optimize the bridging settings#The fullsize brush OSAT_scrub_brush_2.stl from thingivrese.com takes ~7 hours 45 minutes to print# Cutting the brushes apart takes 10-15 minutes[[Image:OSAT_brush_cut.jpg|200px|right|thumb|Two brushes successfully cut apart]]##A sharp tool ensure fewer bristles will be broken during the process##Avoid sawing motions to prevent breaking bristles##Cut in a chopping motion with a sharp tool such as an exacto##Cutting with the point up makes it easy to cut a strait line with a long knife##If the bristles don't come out very even after cutting or if sections of bristles are sticking out use scissors to cut the bristles so they are level
=== Common Problems and Solutions===
*Bristles breaking during cutting
**Try a different color or different filament (Any color PETG should work well)
*Brushes are hard to cut apart
**Use a longer sharper tool
**Some bristles may have become fused try changing print settings to produce better bridges
*Lots of bristles are falling out
**Rub brushes together over a recycling bin to remove loose bristles
**Increase temp of print or flow of bridges to make bristle more secure
== Cost savings==
*Print that produces two 120mm x 60mm brushes is ~$72.8518*Scrub Brush with Easy Grip from Walmart is $73.03 88 [https://www.walmart.com/ip/Unique-BargainsLibman-High-Duty-Shoe-Clothes-WashPower-Scrub-Brush-House-Home-Laundry-Stain-Dust-Cleaning-Brush-Easy-Grip/4664429623332689]*$32.11 79 savings or a 4472% savings
== Benefited Internet Communities ==

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