Two options were explored for fixing the problem with the smallest gear. As it was mentioned earlier the smallest gear did not have teeth compatible with the larger gears. This was a fault in the spur gear generator program written for OpenSCAD. The first option was to replace all the 100mm diameter gears with the 200mm gears and lose some of the torque. This was explored by making a color sketch of the gear proportions on a rectangular grid.
Another option was to take the teeth from the small gear and array them in a 2D CAD program to ensure the dimensions were appropriate. This was done with a 7-tooth gear and an 8-tooth gear. The wide variety of gear sizes in the enclosure and the high torque factor made this the avenue to pursue first. As a secondary plan, the small gears can be replaced.
Downloads:
Parts list:
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.
2016-09-07 (W)
Color sketch of gears
Another option was to take the teeth from the small gear and array them in a 2D CAD program to ensure the dimensions were appropriate. This was done with a 7-tooth gear and an 8-tooth gear. The wide variety of gear sizes in the enclosure and the high torque factor made this the avenue to pursue first. As a secondary plan, the small gears can be replaced.
Paper cutouts next to plastic gear
Downloads:
Parts list:
- 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.
2016-09-07 (W)
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