MFS - Martin Frame Studio
Tetra 3 for 20mm Wide Camera Kit (Carbon Only)
Price :
$
21.40
Propeller size :
3"
Item List
-
Tetra 3 Brace
Quantity :4
-
Tetra 3 Rear Standoff
Quantity :2
-
Tetra 3 Side (20mm Cameta)
Quantity :2
-
Tetra 3 Bottom (20mm Camera)
Quantity :1
-
Tetra 3 Top (20mm Camera)
Quantity :1
Description
3" Quad-plus frame inspired by the strong tetrahedron structure. Using carbon plates only 1.5mm thick, it can support a 5kg weight on the top arm motor mountings without bending. In other words, it is extremely resistant to (vertical) vibration. It should be noted, however, that it is not strong enough to resist a direct hit by a hard object from the side against the arm or brace (standoff).
Wheelbase : 124.5mm
Thickness : 1.5mm
Motor mount : φ9-12mm, 4 holes, M2
FC & VTX mount on the lower arm: 25.5x25.5mm, 20x20mm, 16x16mm, M2 (outer dimension up to 34x34mm)
FC & VTX mount on the upper arm: 25.5x25.5mm, M2 (outer dimension up to 34x34mm)
Maximum stack height : 32mm
Compatible with whoop style vertical USB connector on the upper arm
Compatible camera width : 20mm (spacers are necessary for narrower camera)
Built-in battery strap holder (can use up to 15mm width strap)
Weight : Approx. 16.2g (Carbon only); 18.0g with M1.4 hardware
Necessary hardware : M1.4x3.5mm screw (Qty 16) and M1.4 nut (2.5mm wide, Qty 16).
Please note that this frame kit does not support 3mm wide M1.4 nuts.
https://www.aliexpress.com/item/1005002562539049.html
It is also recommended to use M1.4 washers and Loctite or similar.
An example of 4S build
The blackbox log file obtained from a test flight using a GNB 4S 650mAh 160C battery
Demonstration of the frame strength
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