Special shapes to make your robot design and build simpler, easier, quicker and lighter
Shapes
3 inch flat
Price per 8 Foot Piece: $24
Weight, lbs per foot: .607
2 inch flat
Price per 8 Foot Piece: $18
Weight, lbs per foot: .457
Slide
Price per 8 Foot Piece: $12
Weight, lbs per foot: .269
Slides over edges of extrusions
3 Inch Asymmetric Angle
Price per 8 Foot Piece: $41
Weight, lbs per foot: 1.10
2 x 2.25 Inch Asymmetric Angle
Price per 8 Foot Piece: $29
Weight, lbs per foot: .79
1 x 2 Inch Hollow Rectangle
Price per 8 Foot Piece: $35
Weight, Lbs per Foot: .967
3 x 3 Inch Asymmetrical Hollow
Price per 8 Foot Piece: $63
Weight, Lbs per Foot: 1.48
Drilling & Tapping Tools: $200
Set contains the angle plate, an end drilling and tapping tool, a tap driver, 2) #10 clearance drills, 3) #21 tap drills, 2) 10 x 32 spiral point taps, a box of 10-32 x 7/8 inch socket head cap screws, and necessary drill bushings and retaining screws. The drill bits are center cutting. When clamped to the extrusions, these tools allow you to drill and tap in the precise location and square for 10-32 fasteners to assemble frames. You must use plenty of cutting fluid when drilling or tapping. To tap, I chuck the tap in a variable speed hand drill and power tap at a slow speed. Reverse the drill to back the tap out. Do not use a standard straight flute hand tap. The chips will bind the tap and break it. You can use a spiral point tap if you have a through hole, or drill the tap hole at least .375 inch deeper than you need to thread. Or you can use a spiral flute tap for a blind hole. When drilling a deep hole, drill about 1/8 inch, pull the drill out, clean the chips and apply cutting oil, then drill another 1/8 inch until you are at the depth you want. In addition to holes for all the Robot extrusions, there are 5 holes to fit the end of the 1 inch extrusion from Rev Robotics. There are also 3 holes which will fit some extrusions I have not pushed yet (the hollow triangle shapes).