I kept evolving my design for a handle based around aluminum bars fastened to a blade with standoffs. In this version, I placed the rectangular voltage converter perpendicular to the handle and battery.
Everything I constructed needed to records or comparison to the previous versions. I had to be able to reconstruct these at will, so I drafted my current model so anyone could replicate the design by printing a copy and using the paper as a 1:1 template.
In this revision, I aligned the voltage converter with the battery and handle, so it was a uniform width, but an extended grip. The paper template made it quicker to produce a knife than before, and all the guesswork was gone.
Even though I was rounding my metal corners, I wanted to cover the exposed metal in case there was a jabbing accident. In OpenSCAD, I designed a cover that would fit between the handle and blade. I printed one with WAG dimensions, then promptly revised it. The first one was ridiculously larger than the knife, so I changed the diameter, and made the little hole in the middle into a hexagon large enough for a spacer.
No matter which design and configuration I used, the voltage converter was exposed, so I bought some wider aluminum. Earlier, I was using 3/4" (19mm), and I switched to 1" (25mm) stock. The square handle was comfortable but didn't feel as natural as a real knife handle. I also changed the edge protector to fit a square 1" end so I wouldn't have to spend time rounding the corners.
A long handle that was 1" on each side was getting ridiculous, so I tried a new design where the converter came out the bottom again, but this time it was supported by the rest of the handle. I even added a button in this version, which sat neatly between the converter and top where it poked through a hole.
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
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.
This design sort of fits everything
Everything I constructed needed to records or comparison to the previous versions. I had to be able to reconstruct these at will, so I drafted my current model so anyone could replicate the design by printing a copy and using the paper as a 1:1 template.
CAD revision of the experimental design
In this revision, I aligned the voltage converter with the battery and handle, so it was a uniform width, but an extended grip. The paper template made it quicker to produce a knife than before, and all the guesswork was gone.
Sleek and easy to reproduce
Even though I was rounding my metal corners, I wanted to cover the exposed metal in case there was a jabbing accident. In OpenSCAD, I designed a cover that would fit between the handle and blade. I printed one with WAG dimensions, then promptly revised it. The first one was ridiculously larger than the knife, so I changed the diameter, and made the little hole in the middle into a hexagon large enough for a spacer.
Edge protector
No matter which design and configuration I used, the voltage converter was exposed, so I bought some wider aluminum. Earlier, I was using 3/4" (19mm), and I switched to 1" (25mm) stock. The square handle was comfortable but didn't feel as natural as a real knife handle. I also changed the edge protector to fit a square 1" end so I wouldn't have to spend time rounding the corners.
Revised guard and beefy handle
A long handle that was 1" on each side was getting ridiculous, so I tried a new design where the converter came out the bottom again, but this time it was supported by the rest of the handle. I even added a button in this version, which sat neatly between the converter and top where it poked through a hole.
Short but it exposes the parts
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
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.
Comments
Post a Comment