A hole was drilled in the largest gear. This was slightly unsettling as it was anytime a potentially dangerous modification was made to a part which had already taken a lot of time to create. The hole was 5/16” (8mm) and meant to accept a bolt of that size. This shaft would be affixed to the gear and allowed to rotate freely.
A bolt and fender washers were installed on the gear. The fender washers were probably not necessary, ordinary washers would probably suffice, but the addition of reflective metal seemed like a nice touch.
Bearings were installed into the printed bearing holders. Due to some printer problems these prints had to be sanded in order to make room for the bearings. To get them into place it was necessary to insert a 5/16” (8mm) bolt through the bearings and holder then tighten nuts on either side until the bearings were seated and aligned.
The hole cut for the 600mm gear was filled with a bearing holder. Some minor sanding was required to get the holder to fit but it was secure. 3/16” (5mm) holes were drilled through the bearing holder and board. This may not have been necessary since the holder was so tight but it seemed more practical to bolt them in place.
The gear was attached to the bearing holder and a nut was finger-tightened below the board for stability. A few animated pictures were taken to illustrate the rotation of the gear. A second gear was placed on the board, not fastened, to demonstrate the interlocking teeth.
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.
2016-10-26 (W)
5/16" (8mm) hole drilled in largest gear
A bolt and fender washers were installed on the gear. The fender washers were probably not necessary, ordinary washers would probably suffice, but the addition of reflective metal seemed like a nice touch.
Bolt fastening gear
Bearings were installed into the printed bearing holders. Due to some printer problems these prints had to be sanded in order to make room for the bearings. To get them into place it was necessary to insert a 5/16” (8mm) bolt through the bearings and holder then tighten nuts on either side until the bearings were seated and aligned.
Bearing holders with bearings
The hole cut for the 600mm gear was filled with a bearing holder. Some minor sanding was required to get the holder to fit but it was secure. 3/16” (5mm) holes were drilled through the bearing holder and board. This may not have been necessary since the holder was so tight but it seemed more practical to bolt them in place.
Bearing holder fastened to board
The gear was attached to the bearing holder and a nut was finger-tightened below the board for stability. A few animated pictures were taken to illustrate the rotation of the gear. A second gear was placed on the board, not fastened, to demonstrate the interlocking teeth.
Gear freely spinning
Interlocking teeth
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.
2016-10-26 (W)
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