View source for Torch Table Design Evolution 2.24.09

{{Template:Category=Torch Table}}

=Introduction=
Here is a simplified design, with spring-loaded motor meshing on rack. Spring not shown. Design follows [[MechMate]]. MechMate is much more complicated than it needs to be - and requires laser/plasma cutter for fine parts. As such, it's not the simplest, most replicable, cheapest design as called for in [[OSE Specifications]]. For purposes of the [[Open Source Fab Lab]], it should be simplified to use as many stock steel sections, without sacrificing performance.

We have a simple design for a torch table (low torque requirement compared to Router Table), which can be upgraded to 2-sided drive for Router Table applications.

=Design Rationale=
*Lightest possible gantry - 25 lbs
*Gear rack inverted, so have no dirt get in it
*Rolling surfaces inverted if possible, to eliminate dirt
*Least number of parts

=Images=

[[Image:torchtablesimple1.jpg]]

[[Image:torchtablesimple2.jpg]]

==X Axis Detail==

Note a 1 1/4 inch square cold-rolled rail, to which a gear rack is attached. A small angle holds the roller cam on top of the cold-rolled rail.

[[Image:torchtablesimple3.jpg]]


Gear rack is attached to cold rolled rail. Spring tensioning of stepper motor plate is used. Stepper motor plate is attached to the gantry through a bearing to allow rotation, for spring  tensioning
.
[[Image:torchtablesimple4.jpg]]

[[Category:Torch Table]]