Roller Coaster Gantries
Parametric, low-complexity fabrication linear axis designs using ubiquitous hardware.
Gantry for NEMA23 Motor, 1/4" Aluminum
In Fusion[^2], you can open this file up and use (from the top menu)
Modify >> Change Paremeters
Each of these models should have some parameters starred, these are what you'll want to configure. Go ahead and set axis lengths, material thicknesses according to what you're doing. When you're satisfied, you can export the model as a .step file, using the file menu, to prep it for fabrication.
File >> Export
Make sure to change 'type' to .step, and check the 'save to my computer' box.
N23 / 0.25" ALU Hardware
| Type | Size | QTY | Where Used | McMaster PN |
|---|---|---|---|---|
| SHCS | M3 | 2.5mm Hex | 91292A110 | |
| SHCS | M4 | 3mm Hex | 91292A116 | |
| SHCS | M5 | 4mm Hex | 91292A124 |
N23 / 0.25" ALU Tools
| Tool | Where Used | McMaster PN or Link |
|---|---|---|
| M3 Tap | Extensively |
90 Degree Block for 1/4" Aluminum
RCTBLK-90-025ALU Fusion CAD File
REF
Find Open Assemblies Hardware Reference for shorthands etc.
Jake's Notes
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doc
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bom
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hardware callout drawing (probably more useful than video)
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nice to include a note on what those flexures are up to ... and some other design decisions
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kinematic mounts are three button head cap screws on 20mm grid w/ reciprocal / wherever-u-like mount ins
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all axis have scroll-along top plate w/ connection to motor plate, final scroll kinematic triangle
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all axis have scroll-along bottom beam plate w/ 20mm grid w/ last scroll kinematic triangles