u/No_Dimension6241 — reddlx

Excited to ride but I got an issue with my qs205.

Hey guys, I’ve recently upgraded my stealth to qs205 and fardriver 72480. 100amp NBpower battery.

When I run the motor, once the wheel comes to a stop, it has this wierd deep whine or whir from within the motor. In the clip it lasts for half a seccond but one of the times off camera it was whining indefinitely until I pulled the power?

What is up , is something broken or breaking, is this Normal and do I just leave it.

Any and all help including reading up until this point is genuinely appreciated.
Thank you 🙏

I have tried the following:
- I’m pretty certain it is an electrical fault and not a mechanical one (or it’s just fine to do this)
- field weaking set to slow and low as per AI advice
- max speed and rated speed set to 900 and 870.
- EABS turned off
- I have auto learned a few times

u/No_Dimension6241 — 5 days ago

▲ 1 r/AskEngineers

What are some advanced project trajectories for my drone project that will impress professors at imperial college? Localised weather prediction? Flytipping tracker?

Hey guys, I’m a young engineer looking to build my portfolio - alfred-Leigh.co.uk I need a serious project, I also have serious people looking over me, I’ll explain here:

I have been presented the great privilege to visit imperial collage London (essentially the best engineering university in UK) to discuss both their projects and my project design and trajectory.
I’m meeting with Prof N. Cumpesty (of jet propulsion) and PhD student Krispin (drone robotics). These are very academic men with many publications and authored books.

I must plan accordingly and revise so I don’t turn up empty handed looking silly.

I plan to build a fully modular carbon fibre quadcopter frame using 1500kv motors. It will be of a substantial size around 60cm square.

The design and assembly I can handle, I plan to program my own drivers and softwares. However the final trajectory of the project I must plan now.
Once I build the platform what can I research or implement ? I’ve been thinking maybe using pressure sensors and such to predict localised weather with a neural network or maybe AI detection of fly tipping pollution spots, I need more ideas.

Ideally I’d like to research something substantial like maybe the inter-rotor turbulence or sound resonance. I’m willing to put the work in and design anything possible within my reach.

Please if anyone could put in the time and think of some key ideas for the trajectory of the project, id really appreciate it.

Thank you . 🙏

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u/No_Dimension6241 — 2 months ago

▲ 34 r/GasBlowBack

Is it worth keeping this gun or is it a burden. 🥺🥺 I can’t find parts for my AK74

Here’s my GHK AK74, my first ever airsoft gun.
It’s a gen 1 from 2019, pre qc issues.
I’ve only played once with it but I’m happy with her however after some mechanical issues and fixing I have realised the situation with parts is dire. Some vital parts like a recoil spring are out of stock and have been out of stock everywhere for months.
Do I gotta just sell the gun on and get something newer or what do i do? Would Anyone want it?
I have found the parts I need but I’m sure very very soon none will be about and the more obscure parts are likely already disappeared.

Any advice from long term airsofters?

Thank you

u/No_Dimension6241 — 3 months ago

▲ 61 r/ethtrader

My take on ETH right now. Please tell me if I’m wrong. (BTC main mover)

I am by no means a crypto or any financial analyst.
Market sentiment (i think that means the people’s opinions) have been very bad. Many poeple say ETH is dead and never coming back.
However as far as i can, after literally 45 seconds of digging i have identified that BTC (the main mover) has a very similar shape. This tells me it’s simply a market dip that will be followed by a new cycle.
Right? Nothing unique to ETH, just the whole market down, and almost definitely coming back within a year or so?
What do the analysts think? It’s not time to sell at a loss is it.

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u/No_Dimension6241 — 3 months ago