Latest revision as of 15:38, 21 January 2011

Main > Digital Fabrication > RepLab Tools > Torch Table

See Torch Table for development work.

Basic Design

6" wide by 1/4" u-channel frame
Gear rack drive, 20 degree gear rack, 1/2" wide, 20 pitch (20 teeth per inch)
1" pinion gear, rides directly on rack
z-axis of torch has manual adjustment
Sacrificial slats may be used, or another workpiece table
495 in oz Stepper Motors from xylotex, 1/4" shafts
- About 31 in lb torque, or 1 G acceleration for a 60 pound gantry with 1" diameter driver gear
Gantry weight - about 90 lb, see below

Gantry weight:

For this weight, acceleratio of motors is about 2/3 G

@@ Line 1: / Line 1: @@
+{{Template:Category=Torch Table}}
 See [[Torch Table]] for development work.
 =Basic Design=
-*1/4" u-channel frame
-*Gear rack drive, 20 degree gear rack, 20 pitch (20 teeth per inch)
+*6" wide by 1/4" u-channel frame
-*1" pinion gear
+*Gear rack drive, 20 degree gear rack, 1/2" wide, 20 pitch (20 teeth per inch)
-*495 in oz [[stepper motors]] from xylotex
+*1" pinion gear, rides directly on rack
+*z-axis of torch has manual adjustment
+*Sacrificial slats may be used, or another workpiece table
+*495 in oz [[Stepper Motors]] from xylotex, 1/4" shafts
+**About 31 in lb torque, or 1 G acceleration for a 60 pound gantry with 1" diameter driver gear
+*Gantry weight - about 90 lb, see below
 [[Image:annotatedtable.jpg]]
 [[Category:Torch Table]]
+==X Axis Detail==
+[[Image:xannotateed3d.jpg]]
+==Gantry detail==
+Gantry weight:
+{|
+|'''ITEM'''
+| '''WEIGHT (LB)'''
+|----
+|stepper motor x 2
+| 8
+|----
+|6x1/4x6' y track plate
+| 30
+|----
+|torch head
+| 4
+|----
+|3/16 plate, 15 4x1/16 tubing
+| 7
+|----
+|Delta support
+| 5
+|----
+|2x2" angle verticals
+| 7
+|----
+|z axis cage
+| 7
+|----
+|'''TOTAL'''
+| '''85 lb'''
+|----
+|}
+For this weight, acceleratio of motors is about 2/3 G
+[[Image:gantryannot3d.jpg]]