I reoriented the Weaver model, and the 35° angle worked, but the print was badly warped. The picture shows the Weaver rail on top and a NERF-style rail below. While the NERF rail has some deviations, it fits onto a gun. My primary concern was that some NERF rails have dividers that may interfere with my printed adapter, but I can either cut them off.
I created long NERF and Weaver rails. To avoid warping, I tilted two NERF rails to 35° in my slicing software and added supports. One print failed. I also printed ten small clamps. Afterward, I used a 3mm drill bit to clear the holes in the NERF rail, which turned out quite ragged before I cleaned them up.
I redesigned the back cover to incorporate two 3mm mounting bolts that secure a pair of interface bars for the prototyping PCB, eliminating the need for an expensive surface-mounted USB adapter. This setup allows the microcontroller to be mounted directly to the cover, saving space and enhancing stability.
I printed an updated back cover and two interface bars, which were too fragile, so I printed a second version with thicker edges. While the USB port aligned with the hole, it was off-center due to a pattern mismatch, and the access hole was too close to the edge, making it fragile.
Bonfire was a placeholder name, and we liked the acronym SHOT for Super Haptic Optic Tagger, which matches the flow supercalifragilisticexpialidocious, at least in the beginning. I drafted the letters in QCAD by placing circles in position and connecting them with lines, which is why the inside bends were sharp but the outside edges were rounded. I extruded and animated the letters in OpenSCAD to make it appear as if the H was spinning after being shot.
Steph from Team Insymmetry returned to discuss Die Hard, as we kicked off Critical Affection's Christmas movie month with a double feature that included the rom-com Love Hard. We debated whether Die Hard is a Christmas movie, and I argued it is not, for which I received considerable grief. I proposed that a film needs to be at least 51% about Christmas to qualify as a Christmas film.
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.
 |
| Warped Weaver rail on top and usable NERF rail below |
I created long NERF and Weaver rails. To avoid warping, I tilted two NERF rails to 35° in my slicing software and added supports. One print failed. I also printed ten small clamps. Afterward, I used a 3mm drill bit to clear the holes in the NERF rail, which turned out quite ragged before I cleaned them up.
 |
| Drying printed parts |
I redesigned the back cover to incorporate two 3mm mounting bolts that secure a pair of interface bars for the prototyping PCB, eliminating the need for an expensive surface-mounted USB adapter. This setup allows the microcontroller to be mounted directly to the cover, saving space and enhancing stability.
 |
| Updated back cover and one interface bar |
I printed an updated back cover and two interface bars, which were too fragile, so I printed a second version with thicker edges. While the USB port aligned with the hole, it was off-center due to a pattern mismatch, and the access hole was too close to the edge, making it fragile.
 |
| The board mounted, but not well |
Bonfire was a placeholder name, and we liked the acronym SHOT for Super Haptic Optic Tagger, which matches the flow supercalifragilisticexpialidocious, at least in the beginning. I drafted the letters in QCAD by placing circles in position and connecting them with lines, which is why the inside bends were sharp but the outside edges were rounded. I extruded and animated the letters in OpenSCAD to make it appear as if the H was spinning after being shot.
 |
| SHOT logo |
Steph from Team Insymmetry returned to discuss Die Hard, as we kicked off Critical Affection's Christmas movie month with a double feature that included the rom-com Love Hard. We debated whether Die Hard is a Christmas movie, and I argued it is not, for which I received considerable grief. I proposed that a film needs to be at least 51% about Christmas to qualify as a Christmas film.
Critical Affection: Die Hard and Love Hard (1:16)
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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