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MS Composit › 3mm Hollow Tail Shaft Drive.
02-11-2006 01:57 PM  12 years agoPost 1
Blade-X

rrApprentice

Singapore

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For those that cannot spend as much on upgrades as I do.... here's a mod that I copied off Walt's design. There's still twisting... but lesser than the stock 2mm carbon shaft... IT WILL NOT bend as easily when u need to put it into the Boom.... and best thing is that it fits the 3mm ID bearings easily.. and stays put with some bits of CA... easily removable with some debonder later(tested). Taking cue from DEetee's notes.... it is much easier to have metal tips/ends which allow you to fasten gears on with only a spot of CA and release easliy for change with debonder.......

1.5 inch Metal tips were chopped off from some old metal (alu-titan) tail torque shaft... the carbon tubes are 3mm OD 2mm ID....U only need to sand 3/4 of an inch of each metal tip with some sandpaper, then CA them on....

Pictures
http://www.rcgroups.com/forums/atta...chmentid=726939

http://www.rcgroups.com/forums/atta...chmentid=726941

Indoor FLight Tests show up a lot less mini vibes.... and my tail is holding very tight... at 16% which previously required a gain of 34%...

WEight wise... It didn't change the CG even when I went from 2 (total) bearings + alu/titan tail shaft to 5 bearings (total ) on the new torque tube....

Walt's a genius......

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02-16-2006 09:29 AM  12 years agoPost 2
TonyTypeS

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New Orleans, LA & El Monte, CA

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Awsome mod man. cheap DIY mod is better than spending 30 bucks for one.

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02-16-2006 01:55 PM  12 years agoPost 3
Blade-X

rrApprentice

Singapore

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Dun thank me...... Just give it a shot!! It was much easier than I expected.... remember to use more than 1 inch long of steel insert... and check the length sticking out by dry-fitting first before u apply the CA... You gotta be quick.. besides this being a quick mod....

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02-17-2006 06:03 PM  12 years agoPost 4
TonyTypeS

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New Orleans, LA & El Monte, CA

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Where do you get the center bearing from? My old Walts tail tube is goin out. After my last crash the tail has lots of vids at high RPMs.
Now im thinking about putting a bigger tail shaft

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02-18-2006 01:24 PM  12 years agoPost 5
Blade-X

rrApprentice

Singapore

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Sorry I can't help you on that.... It was from one of the Local stores own my my friend's family... Good bearings at special rate.... too bad they dun do internet sales for hobby at the moment... They are the regular 3mm ID 6mm OD type, sealed type... dimensions. 3mmx6mmx2.5mm

You can get 3x6x3 These should be available... I did order 2mmID flanged ones that were 3mm thick before I decided to do this mod.

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02-22-2006 03:18 PM  12 years agoPost 6
Blade-X

rrApprentice

Singapore

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check this out.. it's on MS Composit USA.com


""

Article 750.001 - posted 7/20/05

Issue: Hornet X 3D - Correction about references to 3mm tail gears E617 & E618.

In the spring (2005) MS emailed us drafts of the instruction manuals to review and edit. Along with these manuals were the first drafts for the exploded view drawings which had incorrect part numbers and proposed part numbers that never became realized. During development of the Hornet X 3D there were discussions about changing from a 2mm tail drive shaft to a 3mm carbon tail drive shaft and the compromise in the end was to change to a 2mm steel tail drive shaft with the knurling on the front end to better engage the E118 Conical Pinion gear that mates to the main gear. Both E617 & E618 were included on these preliminary manuals.

""

I really wished they had decided to go with 3mm.. then all we need to buy are 3mm hollow tubes...

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02-23-2006 07:17 PM  12 years agoPost 7
Micro-Maniac

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Pasco,Washington Formerly: Captain Chaos

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A reminder to those with Walt's tail drives that they are guaranteed for life against defect or crash damage. But you have to send it back in exchange for a new one. So don't go cannibalizing your Walt's tail drive before consciously deciding to waive the guarantee.

http://www.deeteeenterprises.com/NS...17a.Instruc.php

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02-23-2006 11:13 PM  12 years agoPost 8
Blade-X

rrApprentice

Singapore

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This mod wasn't meant as Walt's shaft fixes... Sorry if I give anyone that idea.

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02-23-2006 11:39 PM  12 years agoPost 9
TonyTypeS

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New Orleans, LA & El Monte, CA

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Oh no man. haha I just used your idea to keep my down time to a minimum. I took me no longer than 15 mins to do.

Would you rather have a week of no flying time just to get a part replace or fix it yourself in 15 minute and be flying agian? haha

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02-23-2006 11:42 PM  12 years agoPost 10
Micro-Maniac

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Pasco,Washington Formerly: Captain Chaos

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Just in case someone forgets about their warranty while viewing their broken Walt's as possibly usable scrap materials.

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02-23-2006 11:48 PM  12 years agoPost 11
TonyTypeS

rrElite Veteran

New Orleans, LA & El Monte, CA

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Yea Walt has good service. I email him and he told me to return the shaft but I already changed it out. hehe I couldn't help myself

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02-24-2006 06:47 AM  12 years agoPost 12
Blade-X

rrApprentice

Singapore

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Walt has helped me several times via email... Well if technically, it seem I "cloned" the upgrade... Thanks for the clear up.

well, back to topic, I really wished MS would consider working to bring better stuff to the hornet line again... things like the belt drive they initially abandoned, or a hollow/or 3mm torque tube.... Of course, as the old saying goes, 'if it ain't broke, don't fix it',

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