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Old Feb 05, 2013, 02:22 PM
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United Kingdom, England, Birmingham
Joined Jan 2013
19 Posts
Help!
Grump Screws Not Giving Enough Grip

Hey RC-Friends,

I just got these screw propeller adapters, but when I tighten them the propeller is still not fastened 100%. Is this normal ? Should I get a better screw-driver? Should I soak it in THREADLOCKER ? here a vid.

still turns


MOVI0063 (0 min 20 sec)
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Old Feb 05, 2013, 02:39 PM
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ripmax's Avatar
uk. northampton
Joined May 2009
987 Posts
Those grub screws have to bite on the shaft so the prop does not twist on the shaft at all, thread lock will only stop the grub screw loosening during flight, if the grub is as tight as it will go then it suggests the thread in the prop adaptor is knackered.
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Old Feb 05, 2013, 02:44 PM
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uk. northampton
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987 Posts
You would be better off with something like this

http://www.giantshark.co.uk/317mm-pr...-p-407670.html

make sure u get the right size for the shaft of your motor
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Old Feb 05, 2013, 04:41 PM
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Quote:
Originally Posted by ripmax View Post
You would be better off with something like this

http://www.giantshark.co.uk/317mm-pr...-p-407670.html

make sure u get the right size for the shaft of your motor
I lifted off anyway ... Im tired of all this fiddelydiddely. Got problems lifting off. I decided to hold it and it attacked me. Im bleeding. Three cuts right into my forearm. Why is it lifting off like this ? :

FREAKINCOPTER (0 min 33 sec)

nom nom nom
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Old Feb 05, 2013, 06:32 PM
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Manchester, UK
Joined Sep 2008
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**** WARNING **** You are going to injure yourself more

Stop trying to fly it indoors! What if it hits your face.... Eye....

Its flying like that probably because a prop is slipping on the shaft.

Your lack of care will make this hobby very difficult for you..

Get the props correct so they don't slip anymore, then try it again OUTSIDE!
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Old Feb 05, 2013, 06:37 PM
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Adapter below with no grub screw works perfectly.

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Old Feb 06, 2013, 01:44 PM
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uk. northampton
Joined May 2009
987 Posts
Quote:
Originally Posted by a9amg View Post
Stop trying to fly it indoors! What if it hits your face.... Eye....

Its flying like that probably because a prop is slipping on the shaft.

Your lack of care will make this hobby very difficult for you..

Get the props correct so they don't slip anymore, then try it again OUTSIDE!
Agree, sort the props before you do anything else, it will not fly unless props are solid on the motor shafts. Test outside well away from u and any other obstacles.

With the props off make sure motors are reacting in the correct way, if u drop an arm on the quad that motor should speed up.
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Old Feb 07, 2013, 08:54 AM
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United States, NJ, Manville
Joined May 2006
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If you are having problems with grub screws slipping on the motor shafts you must use a dremel and grind down a flat spot on each motor shaft...
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