Hi jousef,

The reason Iâ€™ve uploaded the quarter model without such components are for a number of reasons. Firstly as you can see the rotors and motors are quite crude and for demonstration only. Secondly the internal components are similarly of a rough dimensional nature and are still being fine tuned through our 3D printer (Although I suspect I will also FEA the claw on the bottom on Simscale shortly).

Another reason is that because of the way the 3D printer prints components Iâ€™ve had to dimension the blue bracket so that is is not an accurate fit with the other components when in CAD but when printed is congruent with other components. I think the simulation of the chassis only (being the weakest component) is sufficient as other components are constructed from ABS and Carbon Fibre.

The craft weights an all out weight of 0.7kg, the main components I am looking at though is the battery (the central grey box on the mid panel which weighs 188g, the weight of the electronics on the top platform also totals to around 60g and the grabber on the bottom panel at around 40g. Having made a model of this though I am looking to compute an analysis at the point of maximum acceleration so I am looking at fixing the faces in contact with the bracket and then multiplying the mass of the components by the new constant of gravity accounting for acceleration on each panel and computing that, if that makes sense.

Perhaps Iâ€™m approaching this is a rather backwards way and if you have a suggestion of another way to model this then please let me know. My motors have a max thrust of 960g (the calculation is then: ((0.96*4 - 0.7)*9.8)/0.7 which is the resultant thrust for four motors divided by the mass of the craft) this gives an acceleration value of 44 (m/s^2). So Iâ€™m planning on multiplying each platform by this value respectively to give the max â€śweightâ€ť if you will.

Let me know what you think and what my next steps should be, Iâ€™m slowly going through all the tutorials though.

Thanks for all your help!

Kynan