40mm EDF Pod Jet
Description
MK1 40mm EDF Pod Jet. Hi here’s my MK1 40mm EDF Pod. The goal here is to create an EDF pod jet that utilises old drone parts that I’m sure most of us have sat in our parts bin. This is a work in progress and looking to start on a MK2 version soon. This uses a 6x15mm coreless DC motor from a micro drone and a 40mm drone prop. It has been designed to be printed facing upwards with supports. Recommend setting up with 2-3 shells and 15% infill (although I feel no infill is needed and would reduce weight). Printing takes approximately 2-2.5 hours. Total weight of the pod with the motor and prop is about 25g-30g. The mount has been designed so it can be glued to the underside of a wing or side of a fuselage or by drilling holes can be screwed into place. The flush side of the mount is parallel to the thrust line. Things to implement on MK2: Wire routing – Redesign of the pylon to accommodate the wiring to be routed up though the centre for a neater install and improve aerodynamics. Engine mount – you will notice I have taken a slice out of the mount post print. I only did a quick print on this one, but I found the mount a little too snug, so I have taken a slice out to allow a bit of compliancy when installing the motor. I plan to properly implement this on MK2. Pylon and mount too far back – I have found the rear of the mount/pylon is unnecessarily too long and too far back. When it comes to printing, it is best to print this facing up. Because the mount goes so far back it means the main nacelle of the pod needs to use a lot of support adding to the challenge of a successful and cleaner print. MK2 will have the rear of the mount flush with the rear of the main nacelle (I have done this post print on this one). This will reduce the demand on the support and reduce overall weight. Propeller – I have designed this pod to utilize old done parts. Although the thrust feels adequate (not properly measured yet) with the common 2 blade props found on cheap drones, I believe this design would benefit from a 3 or 4 blade 40mm drone prop that would improve efficiency without to mush stain on the motor. An EDF specific prop may put to much strain on these motors, maybe someone can advise? I would love opinions or advice to the ascetics, including: Should the pylon/mount be in a different place? Should the mount be design differently? Does the shape of the pod look right. Those that have printed this, does it feel strong enough or could it be made lighter without it being too fragile in a crash? I am looking to improve on this model with a MK2. Please share your prints and opinions on where improvements could be made. And advice will be greatly appreciated! Happy Printing!
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