I fixed the problem of blinding LEDs by applying pre-cut aluminum foil on a small hot-glue blob. It resulted in better lighting from any angle using less glue.
I made some wood laser-cut dice towers a few years ago and dug up those unpublished journal entries. It is the best time to publish them. I made them for my cousin to test out some wood-burning techniques. I ran into an issue because I designed the towers with a different plywood thickness than the ones I cut. I tried correcting them immediately, but they needed a second day.
Dirty wooden dice towers
The plywood I chose last time was 1/4" (6.35mm), but this time it was 1/5" (5mm), so most of my measurements were unusable. I fixed the drawing and returned to the laser cutter for a second run. The parts fit neatly this time, but I still relied on glue to hold everything together. My cousin never collected the parts, but I learned about the importance of material thickness when designing.
Neatly nested tower and case
I bought a used badge printer with reliable hardware but expensive ribbons. I tried printing on a blank RFID card, but the machine pinched the ribbon and caused a mess. That problem was a broken drive belt that drew up the ribbon after printing. I replaced it with a rubber band and then with a smaller one, but it still would not print. Finally, I used a thick rubber band to make a custom size for the draw-up belt, but the printer produced faint cards and encountered frequent errors.
I bought a kit to make custom o-rings using nitrile rubber and used super glue to hold the ends together. However, the black ink was still faint after printing, even when using a new ribbon.
I got the printer working! The final issue was the power supply. The seller included a unit that outputs 19.5V, but I needed 24V. I connected my variable benchtop model, which provided enough power to melt the ribbon to the cards. When I reduced the voltage to 22.5V, I got excellent results.
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
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.
 |
| Shielded LED |
I made some wood laser-cut dice towers a few years ago and dug up those unpublished journal entries. It is the best time to publish them. I made them for my cousin to test out some wood-burning techniques. I ran into an issue because I designed the towers with a different plywood thickness than the ones I cut. I tried correcting them immediately, but they needed a second day.
The plywood I chose last time was 1/4" (6.35mm), but this time it was 1/5" (5mm), so most of my measurements were unusable. I fixed the drawing and returned to the laser cutter for a second run. The parts fit neatly this time, but I still relied on glue to hold everything together. My cousin never collected the parts, but I learned about the importance of material thickness when designing.
I bought a used badge printer with reliable hardware but expensive ribbons. I tried printing on a blank RFID card, but the machine pinched the ribbon and caused a mess. That problem was a broken drive belt that drew up the ribbon after printing. I replaced it with a rubber band and then with a smaller one, but it still would not print. Finally, I used a thick rubber band to make a custom size for the draw-up belt, but the printer produced faint cards and encountered frequent errors.
 |
| Broken belt received |
I bought a kit to make custom o-rings using nitrile rubber and used super glue to hold the ends together. However, the black ink was still faint after printing, even when using a new ribbon.
 |
| Printed but faint |
I got the printer working! The final issue was the power supply. The seller included a unit that outputs 19.5V, but I needed 24V. I connected my variable benchtop model, which provided enough power to melt the ribbon to the cards. When I reduced the voltage to 22.5V, I got excellent results.
 |
| Pretty badge |
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
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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