About this 3D model
Intro ----- I have a motor that I wanted to test with Hooptey's Vertical Axis Wind Turbine. He was kind enough to post the SLDPART's so I went to work and modified both the hub and the arms. The changes are: + Attachment screws changed to 3.12mm locking Torx screws (http://www.mcmaster.com/#99397A626) on both arms and hub + Hub gear removed and modified to have 1/2" shaft instead. Shaft locked in by 1/4"-20 x 1/4" coarse thumbscrew. + Rain protection built into hub, and optional rain cover + Motor mount added ___ Testing --------- Testing began with the finishing of version 6. It was a massive failure. Not only was wind not very strong, but I did not have blades required (the blinds). Instead I cut out cardboard blades. When tested with a leaf blower it became clear that there is a specific angle that must be caught. The arms will have to be changed. Another issue could be I need gearing to turn the motor, but there is so little force needed it might not be needed. After a little research, it would make sense to do longer blinds, and possibly more arms. _____ Parts List ------------ + 3.12mm locking Torx screws (http://www.mcmaster.com/#99397A626) NOTE: These are what I have on hand, and this might change! + Motor: + 2†body diameter x 3-3/4†long + 1/4†shaft diameter + 140 volt 3700 RPM + Four (4) x 1/4"-20 x 1/4" coarse thumbscrew ___ Change List ----- + v7 + Rain cover eliminated + Second tier added, held together by 1/2" garden poll / screw + Rear Motor Mount changed slightly + Hub Top added. Used for second tier. + Main Hub Extender added. + v6: Mount added to Rear Motor Mount + v5: + Rain cover added + Hole diameter for motor mounts modified + Mount polls made circular, one screw eliminated + Rear Motor Mount wire hole added + v4: + Motor mounts added + Minor mods to thumbscrew hole diameter + v3 (optional): Hub rain cover added + v2: + Hub strengthened in middle + Thumb screw changed to 1/4"-20x1/4" + Arm and hub attachement holes resized for 3.12mm screws (now wider!) + Shaft widened a bit to counter ABS shrinkage + Infill recommendation changed to 50% + v1: Initial release, unprinted