Mending braces were purchased to connect the motor directly to the gear. The higher torque and lower revolutionary speed of this motor should allow it to drive the first gear directly. The motor shaft was not long enough to extend through the gear so the metal brace should give it enough strength. Screws to attach the mending brace to the gear were longer than the gear was thick. To keep the screws from protruding dangerously, a wooden disc was cut from solid wood, not plywood.
A central hole in the mending brace was necessary for the motor to attach. This hole was drilled to the size of the motor shaft as close to center as possible. Mending braces seldom have a pre-drilled hole in the center which was advantageous for this instance.
While making the motor attachment parts, a second set was made for the uncompleted second gear board. This wooden disc and mending brace were prepared exactly the same since the second motor was identical.
Ordinary countersunk screws were used to attach the mending brace to the gear face and the wooden disc was used as a receiver for the long screws. Alternatively, countersunk bolts could have been used but it may have looked odd since the gears use seven teeth and the screws would have been asymmetrical.
A large hole was drilled through the wooden disc and gear so a nut driver could reach down and tighten a nut onto the motor shaft. After that, it was a simple task to attach the upgraded gear to the motor. When it was in place it could be seen that the motor spun fluidly with the gear in place.
Downloads:
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1.
Completed projects from year 2.
Completed projects from year 3.
Disclaimer for http://24hourengineer.blogspot.com/
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in this blog, or linked by this blog, are not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2016-11-13 (Su)
Mending brace on top of wooden disc
A central hole in the mending brace was necessary for the motor to attach. This hole was drilled to the size of the motor shaft as close to center as possible. Mending braces seldom have a pre-drilled hole in the center which was advantageous for this instance.
Drilling central hole
While making the motor attachment parts, a second set was made for the uncompleted second gear board. This wooden disc and mending brace were prepared exactly the same since the second motor was identical.
Discs and braces for both gears
Ordinary countersunk screws were used to attach the mending brace to the gear face and the wooden disc was used as a receiver for the long screws. Alternatively, countersunk bolts could have been used but it may have looked odd since the gears use seven teeth and the screws would have been asymmetrical.
Brace mounted on gear
A large hole was drilled through the wooden disc and gear so a nut driver could reach down and tighten a nut onto the motor shaft. After that, it was a simple task to attach the upgraded gear to the motor. When it was in place it could be seen that the motor spun fluidly with the gear in place.
Gear mounted on motor
Downloads:
- Gears
- Panel layout PDF or DWG
- S Symbol Plate OpenSCAD source or STL model
- Ultrasonic flush-mount source or STL
- Internal ring gear
- Spring hub includes source and STL for metric and imperial
- 1 Small Arduino Micro
- 2 Stereo potentiometers (10K)
- 4 Multi-turn potentiometers (10K)
- 2 Twelve volt DC motors
- 1 Dual H-bridge
- 2 Ultrasonic distance sensors
- 1 Sine wave generator or the Amazon version
- 1 Voltage Regulator
- 1 Twelve volt three amp power supply
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1.
Completed projects from year 2.
Completed projects from year 3.
Disclaimer for http://24hourengineer.blogspot.com/
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in this blog, or linked by this blog, are not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2016-11-13 (Su)
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