Gear construction was started. Copies of the two smallest gears were printed since they fit on stocked paper sizes. The smallest gear, 100mm diameter, fit on a 8.5" x 11" (A4) paper. The next size gear fit on 11" x 17" (A3) paper. They were cut out with regular scissors but a cutting mat and scalpel would have been preferable.
Super77 spray adhesive was applied to the back of the paper gears. This adhesive works well as a contact adhesive without warping the paper or making it immobile once it's applied.
Once the adhesive was dried the gears were applied to a piece of foam plastic. The plastic was cut to the diameter of the larger gear on a table saw beforehand. Placing the small gear so close to the large gear was a mistake since it made them difficult to get apart. It excessive time on a band saw.
Gears after cutting them out on the band saw. Cutting plastic out from between the teeth was tedious. It may have been wiser to drill a large hole at each junction and cut away the excess but the saw blade was wider than necessary for this job.
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 claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2016-08-31 (W)
Paper gears cut from standard paper sizes
Super77 spray adhesive was applied to the back of the paper gears. This adhesive works well as a contact adhesive without warping the paper or making it immobile once it's applied.
Paper gears with Super77 waiting to dry
Once the adhesive was dried the gears were applied to a piece of foam plastic. The plastic was cut to the diameter of the larger gear on a table saw beforehand. Placing the small gear so close to the large gear was a mistake since it made them difficult to get apart. It excessive time on a band saw.
Paper gears adhered to plastic sheet
Gears after cutting them out on the band saw. Cutting plastic out from between the teeth was tedious. It may have been wiser to drill a large hole at each junction and cut away the excess but the saw blade was wider than necessary for this job.
Rough cut plastic gears
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
- 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 claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2016-08-31 (W)
Comments
Post a Comment