A couple weeks ago an enclosure for the project was designed. This enclosure would house the electronics but not the gears. This would need to have room for all the operating equipment including the distance sensors. 2' x 4' x 3/4" (609 x 1220 x 20mm) MDF was purchased although it would be possible to scale the size down slightly if the metric equivalent wasn't quite large enough.
The panel layout, linked at the bottom of each Clockwork Theremin post, was printed full size and adhered to the MDF. The design assumed the material would be exactly 24" wide so if a slightly smaller piece was used it must be scaled accordingly. Two straight cuts were made on a table saw so the cuts would be straight.
The duplicate pieces were clamped together and sanded so they were close to identical. These pieces will be supported by bolts run between them so any flat surface mean to span the gap should be able to rest easily between them.
Unfortunately, bolts were not planned ahead of time so reasonable locations had to be sketched on the MDF. Holes were drilled for the cross-connecting bolts. 1/4" (6mm) bolts were decided since they should provide very rigid support. The first hole was simply drilled with a 1/4" (6mm) bit and there was significant hole blowout. For the rest of the holes, pilot holes were drilled.
1/4" (6mm) holes were drilled from each side of the boards and there were no more blown out holes. The long boards were cumbersome and long clamps used on the boards were unwieldy so once a couple holes were drilled bolts were used to hold the pieces together. Since the holes were drilled through boards at the same time there was no trouble putting bolts through the holes.
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/
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 their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2016-09-13 (Tu)
The panel layout, linked at the bottom of each Clockwork Theremin post, was printed full size and adhered to the MDF. The design assumed the material would be exactly 24" wide so if a slightly smaller piece was used it must be scaled accordingly. Two straight cuts were made on a table saw so the cuts would be straight.
Layout printed, adhered and partially cut
The duplicate pieces were clamped together and sanded so they were close to identical. These pieces will be supported by bolts run between them so any flat surface mean to span the gap should be able to rest easily between them.
Duplicate pieces bolted and sanded
Unfortunately, bolts were not planned ahead of time so reasonable locations had to be sketched on the MDF. Holes were drilled for the cross-connecting bolts. 1/4" (6mm) bolts were decided since they should provide very rigid support. The first hole was simply drilled with a 1/4" (6mm) bit and there was significant hole blowout. For the rest of the holes, pilot holes were drilled.
Board with one blown out hole and seven pilot holes
1/4" (6mm) holes were drilled from each side of the boards and there were no more blown out holes. The long boards were cumbersome and long clamps used on the boards were unwieldy so once a couple holes were drilled bolts were used to hold the pieces together. Since the holes were drilled through boards at the same time there was no trouble putting bolts through the holes.
Cut and drilled boards
Downloads:
- Gears
- Panel layout PDF or DWG
- S Symbol Plate OpenSCAD source or STL model
- Ultrasonic flush mount source or STL
- Internal ring gear
- 1 Small Arduino Micro
- 2 Stereo potentiometers (10K)
- 4 Multi-turn potentiometers (10K)
- 2 Twelve volt DC motors
- 1 Dual H-bridge
- 2 Ultrasonic distance sensors
- 1 Sine wave generator or the Amazon version
- 1 Voltage Regulator
- 1 Twelve volt three amp power supply
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/
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 their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2016-09-13 (Tu)
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