Starling 2 Max V4/C29: current assembly STEP / CAD availability

[Elvis Bicharri]

Hi ModalAI team,

I recently purchased the Starling 2 Max with C29 option a few days ago. While I await delivery I am investigating retrofitting propeller guards and additional payloads, and so I need some details about the airframe.

Could you confirm which assembly STEP or mechanical drawings apply to the Starling 2 Max V4 frame with the C29 sensor configuration?

I downloaded the complete CAD Models folder from FileCloud. It contains seven models, and the newest Starling 2 Max assembly is:

D0012-4-V3-C28-M36-T7-K0-Starling2-Max-V3-20260317.step

The other two Max files are labelled Hardware Revision 2 and HW Rev1, with internal STEP export dates in September and June 2024 respectively. I could not find an assembly identified as V4/C29.

Your replacement-parts page lists the V4 frame M10001459, motor M10001367 and feet M10001460, and says the V3/V4 frames are not interchangeable.

I also found this earlier report of the V3 CAD having smaller-motor legs than the delivered drone, with physical legs marked 1460 versus 868B in the CAD:
https://forum.modalai.com/topic/5364/hardware-starling-2-max-landing-legs-cad-different-from-drone

Could you please clarify:

1. Is a current V4/C29 assembly STEP available, and where can it be downloaded?
2. If there is no complete model, can you provide drawings for the changed V4 frame/motor/feet interfaces and the fitted C29 ToF module and mounting plastics, including their assembly positions?
3. Which parts of the V3 model, particularly the top bracket and arm geometry, remain dimensionally valid for V4? Are there any approved payload attachment points or load limits for the top bracket?

The aim is to check a removable mount and propeller-bumper clearances without assuming that the older assembly matches the current hardware. A model including the installed battery envelopes and propeller sweep/height would be helpful too.

Thanks.

[Vinny]

Hi @elvis-bicharri We are working on this, please hang tight. I'm trying to get the cognizant ME on this one.
Thanks!

[Elvis Bicharri]

Hi @vinny thank you. I will wait to hear from you.

[Vinny]

Hi @elvis-bicharri
OK, it's a big one (~385MB), so please be patient.. but our team got the full Starling 2 Max 3D step file for you. I hear it is the latest, but this is not my domain.

Here is the link...https://storage.googleapis.com/modalai_public/modal_drawings/MRB/D0012 Starling 2 Max 11-6-26.STEP
We hope this is what you needed.
Let us know if we can help for anything else.
New posts are always best for a change of topic.

Thanks!

[Elvis Bicharri]

Hi @vinny

Thank you for sending the Starling 2 Max STEP file, it's very helpful: the propellers are included, and the frame lines up exactly with the V3 model's coordinates.

The export is a single flattened body with no part names, so I can't identify individual components. I have a few questions about the ToF sensor in particular.

1. Configuration: Can you confirm this file is the V4 frame with the C29 sensor package?

2. ToF position: Where is the ToF sensor in this model? A centre point and the direction of the optical axis would be enough, in the file's own coordinates (X right, Y up, Z forward, mm). Comparing it with the V3/C28 model, my best guess is the front-left of the nose, standing upright, around X −13 / Y 10 / Z 63 mm. Is that right?

3. Which ToF parts: Which ToF module and adapter board does C29 use? I tried virtually fitting your public M0178_STARLING_TOF_ADAPTER_REVA and MCAM-00005-TOF-A65 3D models into the nose of this STEP file (software shape-matching, no physical hardware), and neither matches exactly. Is there a different part number, or is the ToF shown in simplified form in this export?

4. Orientation and field of view: An earlier forum post said the C29 ToF is mounted "vertically". Does that mean the 106° side of its 106° × 86° view is vertical, so the horizontal view is 86°?

5. Named-parts version: If possible, could you share the same model as a multi-part STEP with component names, or a dimensioned drawing of the C29 nose showing the ToF, tracking-camera and hi-res-camera positions?

I need this to check that a removable payload mount and propeller bumpers stay out of the ToF and tracking-camera views.

Thanks again.