The 5" OpenFrame: a CNC carbon fibre freestyle FPV frame in the incutec OpenDrone line. The 3" and 5" frames are separate repositories: OpenFrame-3F and OpenFrame-5F.
flowchart LR
O["Onshape<br/>OpenDrone-V2, workspace 5 inch"] --> V["Named version"]
V --> R["releases/rev/<br/>STEP, drawings, manifest"]
| Source | Onshape document OpenDrone-V2, workspace 5" |
| Link file | cad/onshape.json: document, workspace, element and part ids |
| Released exports | releases/<rev>/, exported from a named Onshape version and never edited. No revision has been released yet. |
| Parts per set | parts.csv |
| Fasteners and hardware | hardware.csv |
| Standard | Incutec mechanical repository template |
15 part types, 23 pieces, 8 of them carbon. Taken from the
Onshape assembly; materials are as set in the Onshape model. The
Onshape material library has no TPU entry, so the TPU parts carry
Polyurethane; the pad carries Silicone Rubber.
VTX-Mount and anti-slip pad are taken from document versions V4 and
antislip pad v2 (sourceVersion in cad/onshape.json). A version cannot
be edited, so the model still gives VTX-Mount as PLA and the pad no material.
| Part | Qty | Material | Thickness | Made by |
|---|---|---|---|---|
| Arm | 4 | Carbon fiber epoxy (61%) | 6 mm | CNC carbon plate |
| Boot-L | 2 | Polyurethane | 3D print, TPU | |
| Boot-R | 2 | Polyurethane | 3D print, TPU | |
| Cam-Mount-L | 1 | Polyurethane | 3D print, TPU | |
| Cam-Mount-R | 1 | Polyurethane | 3D print, TPU | |
| Cross | 1 | Carbon fiber epoxy (61%) | 6 mm | CNC carbon plate |
| Airtag/Antenna mount | 1 | Polyurethane | 3D print, TPU | |
| VTX-Mount | 1 | Polyurethane | 3D print, TPU | |
| anti-slip pad | 1 | Silicone Rubber | moulded silicone | |
| Base-Bot | 1 | Carbon fiber epoxy (61%) | 3 mm | CNC carbon plate |
| Base-Top | 1 | Carbon fiber epoxy (61%) | 3 mm | CNC carbon plate |
| Top | 1 | Carbon fiber epoxy (61%) | 2.5 mm | CNC carbon plate |
| 18mmx4mm | 4 | Aluminum | CNC aluminium | |
| Standoff-L | 1 | Aluminum | CNC aluminium | |
| Standoff-R | 1 | Aluminum | CNC aluminium |
Fasteners and hardware per set, from the same assembly:
| Item | Qty |
|---|---|
| Black-Oxide Alloy Steel Hex Drive Flat Head Screw | 5 |
| Hex socket head cap screw M3x0.50 x 8 | 16 |
| Prevailing torque nut M3x0.5 | 4 |
| Socket button head screw M3x0.5 x 12 | 4 |
| Socket button head screw M3x0.5 x 20 | 4 |
| Socket button head screw M3x0.5 x 6 | 8 |
| Socket button head screw M3x0.5 x 8 | 10 |
| m3 pressnut | 10 |
| softmount m2 | 8 |
The assembly's four M5 prop nuts belong to the motors and are left out of
hardware.csv; cad/onshape.json lists them under modelCheck.ignoreHardware.
Result of the Incutec Onshape model check, run on 2026-09-25 against a branch of workspace 5" in the Onshape document. A row stays until the model is fixed.
| Check | Finding |
|---|---|
| Materials | anti-slip pad has no material set in the model |
| 5" | |
|---|---|
| Top plate | 2.5 mm |
| Middle plate | 3.0 mm |
| Bottom plate | 3.0 mm |
| Cross | 6.0 mm |
| Arm | 6.0 mm |
| Bolt holes | Ø3.1 (M3) |
| Press-nut holes | Ø4.5 (M3) |
| Bolt-head counterbore | Ø5.8 (M3 ISO 7380) |
| Countersink | none |
| Camera mount thread | M3 |
Chamfers 0.5 mm 45°, outer fillets R1.0 mm, inner fillets R1.05 mm unless the released drawing says otherwise. The cross-to-arm interface is a press fit and is the tightest tolerance in the design. These are design values: no drawings have been released from this repository yet.
Hardware licensed under CERN-OHL-S-2.0, see LICENSE. Contributing: CONTRIBUTING.md.