Homemade Linear Actuator

Linear Actuator

Advertisement
TOOL:
Linear Actuator
BUILDER:
Andrew Lewis on makeprojects.com
DESCRIPTION:
Homemade linear actuator fabricated from a sewing machine bobbin. A 38 SWG, enameled, copper wire is wound on the bobbin to form a coil. The bobbin is wrapped in PTFE and a small plastic disk is glued to the bottom. A magnet is glued to a plastic rod and a small, copper spring is epoxied to the magnet. The spring/magnet/rod assembly is fitted inside the bobbin center.
RATING:
(0)
Rate this build:
CATEGORIES:
Electrical
TAGS:
linear actuator
URL:
http://makeprojects.com/Project/The-Bobbinator/1976/1#.T9S28Bdo2bV

Advertisement
Related homemade tools:
add comment
1-2 of 2 comments
DIYer says:
Apr 11, 2014 11:15 PM

I don't have a project that requires this, but what a great contribution!

daveward says:
Oct 20, 2013 2:53 PM

How brilliant.  Does your wife know she lost 32 bobbins???