The print from yesterday was outfitted with the circuit board. Two of the fingers had to be removed to make space for the screw terminals. A hack saw blade was used between the teeth to clear printer slag.
Large holes were cut in the pipe. These holes could, and should, have been planned but they were completely guessed. The goal was to simply clear as much space with large drill bits. After the holes were drilled, a hack saw blade was used to trim out some more plastic.
The PCB fit through the rough hole while mounted on the holder. It was a perfect fit and the hole was covered at the ends and the USB socket was exposed. Unfortunately, it became obvious that the hole was not able to be covered with this design.
The part was redesigned to be wide enough to cover the pipe hole but this meant that a hole had to be modeled for the USB cable which would attach to the Arduino mounted inside. A few measurements were taken but holding up the existing part to the screen for comparison really helped.
The model kept the Raspberry Pi 0 mounting holes and fingers off to one side to make sure there would be room for the USB hole. The last two fingers used to hole the PCB were removed since they had to be cut away in the first version anyway. Distance between the fingers was increased.
The model was printed and a hack saw blade was used between the fingers although it only took a moment since there was less printer slag. No further modifications were necessary after the model was printed. Alignment between the the USB socket and the hole was perfect.
The new holder covered the hole in the pipe pretty well. The exposed hole was my fault for getting overzealous with the drill. A problem might occur when plugging a USB cable into the Arduino which could push the PCB out of the holder. If the fingers are long enough, it will simply brace itself on the opposite wall. Glue could also be used to hold the PCB in place.
Downloads:
The rest of the posts for this project have been arranged by date
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
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 in this blog, or linked by this blog, are 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 a post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2017-06-06 (Tu)
PCB mounted in holder
Large holes were cut in the pipe. These holes could, and should, have been planned but they were completely guessed. The goal was to simply clear as much space with large drill bits. After the holes were drilled, a hack saw blade was used to trim out some more plastic.
Rough hole cut in the pipe
The PCB fit through the rough hole while mounted on the holder. It was a perfect fit and the hole was covered at the ends and the USB socket was exposed. Unfortunately, it became obvious that the hole was not able to be covered with this design.
Exposed hole
The part was redesigned to be wide enough to cover the pipe hole but this meant that a hole had to be modeled for the USB cable which would attach to the Arduino mounted inside. A few measurements were taken but holding up the existing part to the screen for comparison really helped.
Computer model and existing print
The model kept the Raspberry Pi 0 mounting holes and fingers off to one side to make sure there would be room for the USB hole. The last two fingers used to hole the PCB were removed since they had to be cut away in the first version anyway. Distance between the fingers was increased.
Rotating model view of PCB holder
The model was printed and a hack saw blade was used between the fingers although it only took a moment since there was less printer slag. No further modifications were necessary after the model was printed. Alignment between the the USB socket and the hole was perfect.
PCB mounted on new holder
The new holder covered the hole in the pipe pretty well. The exposed hole was my fault for getting overzealous with the drill. A problem might occur when plugging a USB cable into the Arduino which could push the PCB out of the holder. If the fingers are long enough, it will simply brace itself on the opposite wall. Glue could also be used to hold the PCB in place.
PCB holder in place covering hole
Downloads:
- Arduino firmware
- OpenSCAD code
- STL printable models
- STL printable pipe dividers
- Python Last-Man-Standing program
The rest of the posts for this project have been arranged by date
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
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 in this blog, or linked by this blog, are 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 a post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2017-06-06 (Tu)
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