I worked through my list of simple model revisions. I added clearance between the tang and Low-voltage power nuts. I restored the tappable plastic in the battery brake. And I made a small sleeve to cover some of the wires at the front of the transformer.
I want this build to be easy to replicate, so I am drafting detailed instructions on Instructables and will likely repost on Hackaday.io for better accessibility. I still need to integrate voltage regulators and protect the aluminum bars, but the build is pretty much complete.
I bought a short M8 bolt at the hardware store and was shocked by the price—almost $2 USD for a single 12mm bolt. To avoid this in the future, I ordered an assortment online. I printed a couple of battery plugs, but none of them worked due to modeling problems, but I will keep working.
I adjusted the clearance between the brake and frame, but I forgot to adjust the bolt head diameter, making it untestable. When I printed a new model without supports, the brake pads twisted, and one brake broke. I came up with a new design idea: a cage surrounding the bolt that would flex outward when tightened, similar to well plugs.
The new brake design was more complex to model than expected, particularly due to the integration of a nut socket. I designed the thin walls with an interior ledge that expands outward when a countersunk bolt is inserted.
Sarah was out, but the rest of us hosted Chad to talk about The Happytime Murders (2018), and we all disliked it. The movie was trying to be a lot of things, but failed at all of them because it could not pick a lane. We spent considerable time talking about how to improve it because we all liked the idea of a human-puppet movie and mentioned some better options.
The rest of the summary posts have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is 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.
 |
| Battery, sleeve, and tang were all updated |
I want this build to be easy to replicate, so I am drafting detailed instructions on Instructables and will likely repost on Hackaday.io for better accessibility. I still need to integrate voltage regulators and protect the aluminum bars, but the build is pretty much complete.
 |
| Introduction text |
I bought a short M8 bolt at the hardware store and was shocked by the price—almost $2 USD for a single 12mm bolt. To avoid this in the future, I ordered an assortment online. I printed a couple of battery plugs, but none of them worked due to modeling problems, but I will keep working.
 |
| The brakes in the corner were less trouble to print |
I adjusted the clearance between the brake and frame, but I forgot to adjust the bolt head diameter, making it untestable. When I printed a new model without supports, the brake pads twisted, and one brake broke. I came up with a new design idea: a cage surrounding the bolt that would flex outward when tightened, similar to well plugs.
 |
| Many iterations of the plug |
The new brake design was more complex to model than expected, particularly due to the integration of a nut socket. I designed the thin walls with an interior ledge that expands outward when a countersunk bolt is inserted.
 |
| Should flare out when tightened |
Sarah was out, but the rest of us hosted Chad to talk about The Happytime Murders (2018), and we all disliked it. The movie was trying to be a lot of things, but failed at all of them because it could not pick a lane. We spent considerable time talking about how to improve it because we all liked the idea of a human-puppet movie and mentioned some better options.
Critical Affection: The Happytime Murders (1:15)
The rest of the summary posts have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is 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.
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