Roller Coaster Gantries
Parametric, low-complexity fabrication linear axis designs using ubiquitous hardware.
Gantry for NEMA23 Motor, 1/4" Aluminum
- kinematic mounts are three button head cap screws on 20mm grid w/ reciprocal / wherever-u-like mount ins
- all axis have scroll-along top plate w/ connection to motor plate, final scroll kinematic triangle
- all axis have scroll-along bottom beam plate w/ 20mm grid w/ last scroll kinematic triangles
BOM
Hardware
| Type | Size | QTY | Where Used | McMaster PN |
|---|---|---|---|---|
| SHCS | M3 | 2.5mm Hex | 91292A110 | |
| SHCS | M4 | 3mm Hex | 91292A116 | |
| SHCS | M5 | 4mm Hex | 91292A124 |
| Type | Meaning |
|---|---|
| SHCS | Socket Head Cap Screw: machine screws with hex heads in a 'socket' - i.e. the head is the socket, not the driver. |
| FHCS | Flat Head Cap Screw: similar to SHCS but have triangular heads, used when making fastener surfaces flush. |
| BHCS | Button Head Cap Screw: rounded head socket heads ! |
| PLSTCF | Plastic Thread-Forming Screws: have triangular lobed threads and torx drive caps, wonderful in plastics as the beefy threads mean no inserts required. |
90 Degree Block for 1/4" Aluminum
