Welcome to Multi-Rotor UK. Please login or sign up.

Sunday,July 12, 2020, 13:33:13

Login with username, password and session length


08 Jul 2020 23:54:24
08 Jul 2020 10:22:40
My mother did it, which explains the mental conditions of my sisters, its a genetic  thing. :D
07 Jul 2020 14:01:29
... I could ask how you knoiw this... but I would regret it.
07 Jul 2020 11:53:34
Little known fact, if you push a runner bean seed up your nose the moisture will cause it to germinate, and expand.You wont get any beans though just  two black eyes. :o
04 Jul 2020 13:16:48
VIDEO or it didn't happen!! :) Nice going though, keep it up!
Bad Raven:
02 Jul 2020 19:46:48
whoelseisbored (LiamHowe89):
02 Jul 2020 17:45:19
Sounds basic but I'm happy with it  :laugh:
whoelseisbored (LiamHowe89):
02 Jul 2020 17:45:05
Managed a split s :D
28 Jun 2020 12:29:49
BF GPS Rescue mode configured - what could possibly go wrong?   :o
27 Jun 2020 21:07:37
and can't make it back to where you take off from   :laugh:
  • Total Posts: 199019
  • Total Topics: 20055
  • Online Today: 27
  • Online Ever: 530
  • (Tuesday,June 26, 2012, 08:34:46 )
Users Online
Users: 0
Guests: 14
Total: 14

Theme Changer


3d - Printworx

Printing 3d Forum

Motor shaft too narrow.

Started by atomiclama, Wednesday,November 08, 2017, 09:02:24

Previous topic - Next topic


Any ideas how to get round this problem.

The shaft one two of my SunnySky 2212 motor is a tiny bit on the small size. Fake motor from banggood I presume.

Though it was a problem with the bearings but fitted anew set and it's just as bad.

So any ideas how I can pack out the shaft so there is no slop between it and the bearing?
Wasdale X, Ow that hurt


How much clearance is there?
You might be able to get shim steel thin enough to pack it, if not try thick thread lock.
I've also put a dab of silicon sealant in the bearing bore (only a tiny bit with a cocktail stick) just enough to stop it turning.
BTW Banggoods Sunnysky are not fake, I've had loads from them and never a fake one!
They got caught in 2014 with fakes and cleaned up their act after a lot of returns!
Here's how to tell:


Tiny clearance doubt I could shim it. Can't find a micrometer around so can't measure.

The motor makes horrible noise when running. I can feel the bell moving if I grip it and waggle.

Thanks I'll try the thread lock and see
Wasdale X, Ow that hurt


Quote from: DarrellW on Wednesday,November 08, 2017, 09:20:08
BTW Banggoods Sunnysky are not fake,

Well going on that video all mine are fake.

Bashed up box and zip lock bags.

But then he didn't know what the balancing gunk was so I'll take his word with a pinch of salt.
Wasdale X, Ow that hurt


All sorted thanks. ~~

Thread lock to the rescue.

Just need to balance the motors now.
Wasdale X, Ow that hurt