5-inch FPV quad frame plate: parametric template

Parameters

Open in the editor opens the design with these defaults; change them afterwards in Modify › Parameters, and everything that depends on them follows. Opened from the editor’s template library instead (New ▾ › New from template…), the template asks for its values first and checks them against these ranges and against each other, and Copy link gives an address that opens it with your values.

Name	What it sets	Default	Range
`wheelbase`	Wheelbase (motor to motor, diagonal)	220 mm	150 to 300 mm, steps of 1
`arm`	Arm width	14 mm	8 to 22 mm, steps of 0.5
`body`	Body width	46 mm	36 to 70 mm, steps of 0.5
`motor`	Motor hole spacing	16 mm	9 to 19 mm, steps of 0.5
`fc`	Flight controller hole spacing	30.5 mm	20 to 30.5 mm, steps of 0.5
`screw`	Screw hole diameter	3.2 mm	2.2 to 3.5 mm, steps of 0.1
`thickness`	Plate thickness	4 mm	2 to 6 mm, steps of 0.5

Notes

The bottom plate of a true-X quadcopter frame: a square body for the flight-controller stack with four arms on the diagonals, each ending in a round motor pad with four motor holes and a shaft clearance hole.

Wheelbase is the diagonal distance between motor centres - about 210 to 230 mm for 5-inch propellers. Motor hole spacing is the motor's square bolt pattern: 16 for most 22xx and 23xx motors, 19 for some larger ones, 12 or 9 for small motors (use 2.2 mm holes for M2). The flight-controller holes are on a 30.5 mm square by default; 20 mm suits mini stacks.

Cut it from 4 to 5 mm carbon fibre plate on a CNC router (wear a mask and use water or extraction: carbon dust is harmful) or from G10 / FR4; 3 mm plywood or acrylic is fine for a test fit but not for flying. Export the outline with Save As DXF from the sketch's right-click menu.