I bought a laser engraver. The manufacturer claimed I could set it up in ten minutes, but I was pleased that it only took an hour. I hope this will be a valuable tool for rapid prototyping.
My laser
I started a new project that looks like an old one. I've made distance sensors before, but this time I'll be guiding a workshop where everyone has to make one, and I needed to select inexpensive hardware that is also novice-friendly.
What I plan to use
I started with a platform that I could cut at home. The servo motors and battery attach with rubber bands strung through holes in the wood and snagged on cleats.
The first base
I assembled the parts and had trouble getting the rubber bands to stay. The pegs were so short that the bands slipped right off. The other problem was the servo horns which were too short.
Parts installed with rubber bands
In the second version, I extended the cleats, which helped immensely. I thought I would need a low-friction cam that could slide over the user's skin, but a free-spinning wheel attached off-center should work. The first one was too small.
Testing servos and wheel
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
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.
I started a new project that looks like an old one. I've made distance sensors before, but this time I'll be guiding a workshop where everyone has to make one, and I needed to select inexpensive hardware that is also novice-friendly.
I started with a platform that I could cut at home. The servo motors and battery attach with rubber bands strung through holes in the wood and snagged on cleats.
I assembled the parts and had trouble getting the rubber bands to stay. The pegs were so short that the bands slipped right off. The other problem was the servo horns which were too short.
In the second version, I extended the cleats, which helped immensely. I thought I would need a low-friction cam that could slide over the user's skin, but a free-spinning wheel attached off-center should work. The first one was too small.
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
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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