Numerous nuts were necessary to test the wrist mount hardware which was cumbersome to assemble. In order to eliminate the necessity for these nuts spacers were designed to go between the existing parts. If the spacers are the correct size the parts can be redesigned to have the spacers included so they be printed and assembled easily in the future.
Mostly the lower part of the wrist mount was measured for spacers but a spacer was measured for a joint where a lever arm connects to the keypad. On the pinkie finger side of the keypad a spindle identical to the ones used by all the other fingers was used instead of a custom spacer on top of the unique pinkie finger spindle. This eliminates the need for a separate pinkie spindle in the future.
Only a sketch was made of the mounting pieces and measurements were drawn on the sketch. Existing pieces were drawn in black, bolts were drawn in red and dimensions were written in green. A spindle was imported and spacers were sized according to the measurements taken. Models will not be provided for the spacers since they will be integrated with the other parts.
Downloadable Files:
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.
Mostly the lower part of the wrist mount was measured for spacers but a spacer was measured for a joint where a lever arm connects to the keypad. On the pinkie finger side of the keypad a spindle identical to the ones used by all the other fingers was used instead of a custom spacer on top of the unique pinkie finger spindle. This eliminates the need for a separate pinkie spindle in the future.
Keypad at top and mount at bottom
Only a sketch was made of the mounting pieces and measurements were drawn on the sketch. Existing pieces were drawn in black, bolts were drawn in red and dimensions were written in green. A spindle was imported and spacers were sized according to the measurements taken. Models will not be provided for the spacers since they will be integrated with the other parts.
Sketch of mount with dimensions
Model of spacers
Downloadable Files:
- Common OpenSCAD files
- Servo footprints for OpenSCAD.
- Wrist Mounted Chording Keyboard. All STL printing Files. If you want to print.
- Parts for index, middle, and ring fingers.
- Parts for pinky finger.
- Thumbboard.
- Servo lever.
- Wrist base.
- Left-handed Wrist Mounted Chording Keyboard. All STL printing Files. If you want to print.
- Parts for index, middle, and ring fingers.
- Parts for pinky finger.
- Thumbboard.
- The servo lever and wrist base are the same as the right-handed version
- Wrist Mounted Chording Keyboard. All OpensCAD Files. If you want to make changes.
- Parts for index, middle, and ring fingers.
- Parts for pinky finger.
- Thumbboard.
- Servo lever.
- Wrist base.
- Arduino Code for wired keyboard
- Spreadsheet for chords.
- Wrist mount
- Revise offset levers
- Make holes in thumb board cylindrical instead of countersunk
Add 3D printed spacers to avoid using extra nuts and washers- Add spacers to modeled parts
- Add limit switch mounts
- Connect servo arms
- Lengthen servo arms
- Integrate:
- Controller
- High precision potentiometers for tuning servos
- Servos
- Enclosure for each controller
- Limit switches
- Activation switch
- Debug
- Test
- Refine
- Repeat
- Activation switch
- Route wires
- Write instructions
- Compress and link to all files
- OpenSCAD files
- STL models
- Arduino code
- Make diagram with everything labeled
- Schematic
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.
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 claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2015-09-06 (Su)
Comments
Post a Comment