Main shaft - RC Groups
Shop our Airplanes Products Drone Products Sales
Thread Tools
Sep 03, 2017, 12:57 AM
Registered User
old nitroman's Avatar
Discussion

Main shaft


Anyone have part 3026 for a whopper , bought mine use and has a small bend in the main shaft .004 Like to find a new one . She all converted to electric. Thanks Cliff
Sign up now
to remove ads between posts
Sep 04, 2017, 08:36 AM
Mike's Ma Maaaaaaaaan
PaulB's Avatar
If you don't have any luck...
Is the shaft metal and if so it is quite easy to straighten a shaft provided it is longer than around an inch or so.

A Dial Test Indicator (DTI) will only set you back a a few Shekels and a mount for hold it (I use an old 'helping hands' soldering stand or see what they cost). Then all you need are 2 bits of scrap steel square bar or angle and a G Clamp. File or saw 2 'V' notches out of the bar so that you can sit your shaft on it and rotate it, I sometimes use small magnets on the ends so that the shaft can't move sideways but it's not critical. Rotate the shaft with the DTI mounted above it and see exactly how bent it is marking the 'high' side with a marker pen. Move the DTI away (if the shaft is over 5 - 6" leave it there) and fit the G-Clamp over the shaft with the 'bottom bit' under the work bench and screw it down to bend the shaft slightly in the opposite direction counting how many rotations (or how far) you move the handle. Alternatively, if you still have the DTI mounted just read the scale. Re- measure to test the results, you will very soon get the hang of how far you need to screw the clamp to make fine adjustments.

Paul
Sep 04, 2017, 08:39 PM
Registered User
old nitroman's Avatar
I spend a few hrs today got i real close, have done it before, just take time. Shaft is about 11" long
Sep 04, 2017, 08:40 PM
Registered User
old nitroman's Avatar
love to find some bar stock and make my own, i have drilled them before too
Oct 10, 2017, 09:15 AM
Registered User
old nitroman's Avatar
found bar stock and made my own.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Help! Trex 800 - bad vibration coming from head/main shaft/main gear dkramer Large Electric Helis 4 Aug 16, 2017 12:38 PM
Discussion Repost: Walkera No60: Dis-assembly of main blade holder and removal of feather shaft? Blacky's Boy Beginner Training Area (Heli-Electric) 9 Apr 08, 2016 06:24 PM
Build Log OWB Shaft fit to Main Tail Drive Gear Maturecruiser 3D Electric Heli Flying 6 Dec 30, 2015 08:19 AM
Discussion Walkera No60: Dis-assembly of main blade holder and removal of feather shaft? Blacky's Boy Beginner Training Area (Heli-Electric) 0 Nov 07, 2015 03:42 PM
Discussion 180CFX main shaft vs. 200srx main shaft MallenP Micro Helis 0 Mar 12, 2015 01:19 PM