The Fractal 75 is another excelleng innovation from a Tiny Whoop community member on the original Tiny Whoop frame design! My friend Yves in Taiwan has created this unique little kit consisding of a carbon fiber centerpiece with four detatched ducts and an ultralight camera mounting system. The carbon fiber center plate keeps all props on a perfect plane even after many crashes, unlike plastic frames which might eventually bend. The overall design is modular, customizable, durable and light-weight!
Here's a link to the livestream by Yves where he explains how to build this frame! I'd skip to around 6:30 to start.
I'm proud to also sell the new Fractal 65, you might wanna check it out!
Here's what Fractal Engineering has to say:
— A little backstory —
I’ve been thinking a while about whether to change that first paragraph or not, but there is no better way to put it.
If you’ve owned, tried, or even just heard of my 65mm racing whoop frame, the Fractal 65, I could simply tell you the 75 embodies the essence of it, scaled up to 40mm props
And that would be absolutely true…
But there is also a little more to it 🙂
This frame has been in fact 10 months in the making.
So much for just making the thing a little larger, you would think
But well, not quite.
One of the main requirements for that frame was a lightweight, and this has proven challenging to achieve at an enlarged scale without compromising the other main requirement, rigidity.
It took several iterations, in design, material, or supplier to find the perfect balance that would meet my expectations.
But thanks to the help and testing of my awesome team pilots, lots of crashing and breaking, it is finally at a point where I’m satisfied with it and happy to offer it out to you!
I hope you enjoy the extra thrust and stability over the 65mm, the extra prop area makes it much more versatile;
you could build it into a lightweight absolute rocket on 300mah 25k 0802, a long-range ELRS F4, or even a vacation video rig carrying a peanut/insta 360 go!
Or even go crazy and make it a pusher, or even use no ducts at all!
The choice is yours, and I’m supporting your experimentation by regularly uploading 3D models on the downloads section for you to print at home 🙂
— A quick note on bottom plate options —
All frames come with a 1.5mm bottom plate; it has been found to be the best weight/durability balance on 1S
If you’re a hard basher, want more rigidity for a 2S build or if you simply like more gravity to your builds, I’ve also cut 2mm bottom plates.
There are designed with thinner braces to make the most out of the thicker material but remain about 0.5g heavier
This makes it an extremely stiff and near indestructible platform; allows for very tight tuning.
You may choose it as an add-on, the kit includes one bottom plate and 13 extended motor screws
— So what about that frame? —
Remaining true to its original intent, the Fractal 75 features:
- 75mm diagonal, squished X geometry, for 40mm props
- 1.5mm Carbon Fiber / Individual Nylon ducts hybrid construction. Cut from Japanese T300 CF sheet
- Low-profile camera mount, no props in view, no tilt offset
- Low Center of Gravity, by bringing the AIO closer to the frame/motors
- Allows mounting with USB pointing up for easy accelerometer calibration
- No need for a canopy as all electronics are tucked safely between the ducts
- Maximum rigidity where it matters most; connecting the motors to the FC
- Easy maintenance, break one duct, replace only the single duct
- Lightweight, about 21g with HM DiamondF4
As always, this is a project that I designed for myself first, that I put together in a product to share with any pilot that would like to experience the same level of requirements!
Designed with love, by a pilot, for pilots.
But don’t take my word for it, here’s what Team Pilot Glenn “Bellaciao” has to say about it:
“Tank like. Can slam it into the ground and it’s fine. Haven’t had any delamination or build quality issues. There’s plenty of room to add a vtx and rx, the ducts protects the parts from impact, and with 2s it truly feels like a larger quad. Facepunches will hurt.”
Or a few notes from Sushan “Brdsrtrl”
“Very stable and predictable, Makes an easy platform to make a super reliable quad, a million different configurations, Makes it easy to tuck away external parts if you aren’t using an aio.”
— What do you get? —
This frame kit contains everything you need to build your own craft, based on virtually any components.
I do however recommend a 4-1 AIO (FC/ESC/RX/VTX) to keep the part count to a minimum, but there should be enough room to stack a separate VTX or RX on top of the AIO
It has a 25.5×25.5mm mounting pattern for the AIO, and motor fixations for both 3xM1.4×6.6mm and 3xM1.6×5.5mm
The camera mount is 3D printed and universal – I will upload the STL and Step files so you may print your own spares or season them to taste 🙂
— Contents: —
- 1x Fractal 75, 1.5mm thick Base Plate
- 1x Nylon frame (used by trimming the ducts off)
- 2x Printed TPU fixations – 1x 300mah and 1x 450mah 1S (camera, front and rear battery mounts)
- 13x M1.4x5mm steel machine screw for motors
- 4x M1.7x5mm self-threading screw for short board grommets
- 4x M1.7x7mm self-threading screw for long board grommets