JandJ Registered User Thread OP

Quote: falcongsr Originally Posted by Are you thinking linear dipole VTX out the top somewhere?

Realacc Trident U.FL

Realacc UXII Stubby RHCP U.FL

LUMENIER MICRO DIPOLE

I will likely buy up one of each so that I can make a real-world assessment of which performs the best. I am against the typical dipole because the exposed section of the antenna is far less accurate than the above choices.



Quote: yosi Originally Posted by Thank you for sharing your experience of these build.

ABS is not your prefference at all for crash resistance?



The thing with choosing PCTPE or the 910 is that your design needs to be tailored for the material. Given they deform and return to their original shape unlike ABS, you need to cater for that in the design. A thin arm which feels rigid in ABS will be floppy in Taulman. So, you will need to beef up your design to take it into account. But it is a less dense material, so you can afford a bit more width.



A model made in either PCPTE or 910 will be virtually indestructible. They can be bent and manipulated without de-laminating or cracking, like this:





That said, our favourite FDM material so far is the nylon with carbon fibre. We will very likely be using that for the first flying prototype. It doesn't flex quite as much as the PCPTE, but is still flexible enough for crashing onto concrete. Once the early flying prototypes are tested, we will be SLSing the design in another nylon copoly. Here is the latest in the nylon / CF:





Here is the camera in position:

Inline with the design philosophy so far of having nothing exposed to be broken, ideally it would be integral with the frame. But the location is now occupied by the XT30 connector, so the antenna is a bit unknown. To go with the eagle and runcam VTX, I would like the best quality VTX we can squeeze in there, so I am considering the following:Realacc Trident U.FLRealacc UXII Stubby RHCP U.FLLUMENIER MICRO DIPOLEI will likely buy up one of each so that I can make a real-world assessment of which performs the best. I am against the typical dipole because the exposed section of the antenna is far less accurate than the above choices.PLA and ABS are entirely unsuitable for a robust micro quad. Too heavy and no impact resistance. Brittle. For example, the lightspeed frame above is 16 or 18g in PLA! You are talking half the weight for say the Taulman.The thing with choosing PCTPE or the 910 is that your design needs to be tailored for the material. Given they deform and return to their original shape unlike ABS, you need to cater for that in the design. A thin arm which feels rigid in ABS will be floppy in Taulman. So, you will need to beef up your design to take it into account. But it is a less dense material, so you can afford a bit more width.A model made in either PCPTE or 910 will be virtually indestructible. They can be bent and manipulated without de-laminating or cracking, like this:That said, our favourite FDM material so far is the nylon with carbon fibre. We will very likely be using that for the first flying prototype. It doesn't flex quite as much as the PCPTE, but is still flexible enough for crashing onto concrete. Once the early flying prototypes are tested, we will be SLSing the design in another nylon copoly. Here is the latest in the nylon / CF:Here is the camera in position: