Torch Table Intro: Difference between revisions
Jump to navigation
Jump to search
| Line 29: | Line 29: | ||
=Bill of Materials for a Simple Prototype= | =Bill of Materials for a Simple Prototype= | ||
It appears that the Xylotex drive is applicable to large torch tables. [http://www.kickassmachinesinc.com/ Here is one] that Xylotex told me uses their controllers and motors. | *It appears that the Xylotex drive is applicable to large torch tables. [http://www.kickassmachinesinc.com/ Here is one] that Xylotex told me uses their controllers and motors. | ||
*Ball screw [http://www.mcmaster.com/ 5966K26] at McMaster Carr, $1.26/inch, and $25 for each ball nut | |||
**90% mechanical efficiency compared to 30% for acme screw | |||
[[Image:ballscrew.gif]] [[Image:ballnut.gif]] | |||
=Instructables References= | =Instructables References= | ||
Revision as of 00:24, 6 February 2008
XYZ Table design
Please view our development log here. The specifications development for a robust and scaleable machine is under development here. The prototype specifications for a torch table application will be developed on this page.
The basic design follows.
Using ball screws and linear bearings appears to be the easiest method. Present research indicates that profile guide rails are twice as cheap for the accuracy required, so this will be redesigned.
Compare this to gear drive and linear rails, which appears to be more complicated in terms of drive components.
Torch Table Implementation
Specifications:
- .01 inch accuracy
- Precision acme rod
- Profile rail guides
Motors: [1]
- Nema 23 Double Stack/Double Shaft Bipolar Stepper Motor, Flats ground on each end
- 269 inch lb holding torque on main axis
- Rated Current - 2.8A/phase
- Shaft width - .25 inch
Controller:
- Direct coupling to precision acme rod
Bill of Materials for a Simple Prototype
- It appears that the Xylotex drive is applicable to large torch tables. Here is one that Xylotex told me uses their controllers and motors.
- Ball screw 5966K26 at McMaster Carr, $1.26/inch, and $25 for each ball nut
- 90% mechanical efficiency compared to 30% for acme screw
Instructables References
Search Instructables.com for CNC projects. There is a load. The people should be tapped for review. Just sign up and send authors an email.
- http://www.instructables.com/id/SDPT6W9F3HY3SLR/
- CNCZone hath lots of DIY implementations - [2]
- http://www.instructables.com/id/3-Axis-CNC-Router---60x60x5---JunkBot/
- Solsylva has plans for 3 axis tables, 2'x5' for the largest