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Ron’s HeliProz South . Century Helicopter . MTA Hobbies

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Tools and Field Equipment > Work stand for 50/30 Raptors How to build thread
 
 
Chook
Senior Heliman
Location: Esperance Western Australia

Hi fellow Raptor owners, here is a work stand for my Raptor helis I've been working on for a while. Make use of the prangs we have all had by using a flybar, main shaft and pushrod.
Please visit my gallery to see photos etc. Sorry about the order as I'm new to this.
There is a size sheet photo for approx cutting sizes of components.
The only critical area is the 2 main shaft to 30x8 flat bar welds. It's really important you only tack weld these and trial fit to make sure that the yellow upright is vertical to the rear of the fuel tank with some clearance on top and to the rear of the fuel tank its self.
The distance from rear mount/main shaft is about 20mm to the centre of the bend. It's much easier to do the bend on a much longer piece and then finally trim it to size (this gives you a longer tail out of the vice to bend into the curve). A bit of trial and error will establish the distance required. It is also important not to go any shorter than 180mm to the end of the yellow upright as when the heli lays on it's side the gear will foul with the main pivot.
The 8mm/5/16" bolt holes are drilled in both bits and 80mm of 8mm rod is welded to the nut.
Lay the yellow arm at right angles to the orange with the bolt in to establish where to set the small 8mmx8mm x30 piece before welding.
A small tag stops the bolt head from rotating and this allowes the bolt to be positioned so the handle when tight ends up facing down.
The pipe and shaft pivot is not critical just use something that will rotate easily but not too sloppy. I used 20nb water pipe 26.9mm OD and 2.6mm wall and 20mm rod.
The small bolt on the pivot is 6mm/1/4" and 40mm of 6mm rod welded to the head for wing bolt to stop rotation. The nut is welded to the pipe over a drilled hole.
The elbow join is just a case of grinding the uprights curved end till you can get a full left and right movement. A friction washer can be inserted between the yellow and orange bits after paint dries. Make it out of a small circle cut out of wet and dry sandpaper. (to look like a paper washer)This stops the stand creeping when working at different angles.
The brake rotor is off a Ford Falcon Car and these can be had for the asking from any brake shop or wreckers. Just remove the sharp edges caused by wear.
Hope you enjoy using this it saves me a lot of hassels. Please post your pics. Cheers Chook



08-06-2007 Over year old.
 
 
legoman67
Elite Veteran
Location: Nanoose Bay B.C, Canada

how does that pin hold the heli in those positions? is it just friction?

Matt M.
http://www.filepile.ca
08-06-2007 Over year old.
HOMEPAGE  
 
 
DarkSideSimba
Veteran
Location: Alaska

Wow very nice idea there Just happen to have a spare Lexus Rotor in my garage. Now I know what to do with it.. THANKS!!!! Will have to post some pics of mine when I get done with it. I like it

DSS

Evolution.. Times Have Changed.. Has Your Heli??? Sceadu Evo.. Tomorrows Heli.. Todays Evolution
08-06-2007 Over year old.
 
 
Chook
Senior Heliman
Location: Esperance Western Australia

Hi, forgot to mention that eh.
I've found it easier to just slip some fuel tube on the ends of the 2 pins. There is a large flybar pin and a small push rod pin at the back. The small tube used for clunk lines, works on the small push rod. I have drilled out the rear holes in the side frames of my Raptor SE heli and now use another flybar pin so just 2 the same size. I originaly put slight s bends in the pins to have enough friction but it was more difficult to position the heli and insert the pins. Simply hold heli by the blade grip and fit the front pin (this is close to the centre of gravity) and is easy to see and then the rear. It's there to stay in 10 seconds.
Thanks for the remarks, Chook
08-06-2007 Over year old.
 
 
MJWS
Key Veteran
Location: Airdrie, AB - Canada

Looks great, Chook. Fantastic idea. Thanks for sharing. Nice shop too.

Mike
08-06-2007 Over year old.
 
 
Chook
Senior Heliman
Location: Esperance Western Australia

Hi legoman67.
Did I missunderstand you?
The heli is attached to the stand by existing holes that are in the 50 side frames. There are a couple of close up photos.
In the photos of the heli inverted on the stand the mounting lug under the servo tray is used. The hook on the front of the servo tray where the elastic band goes under to hold radio reciever etc, rests against the yellow arm. This is really useful when working on the motor as you can swing the heli left and right to get to the engine mounting bolts etc. It's really easy to do up the muffler nuts (on my SE it's been off and on that often) as you can insert the allen head bolt and gently swing the heli to see the nut to start them. Hope this info clears things up more, Cheers Chook
08-07-2007 Over year old.
 
 
legoman67
Elite Veteran
Location: Nanoose Bay B.C, Canada

ya, i figured it out. thanks, also what did you use to bend the metal arm to hold it

Matt M.
http://www.filepile.ca
08-07-2007 Over year old.
HOMEPAGE  
 
 
Chook
Senior Heliman
Location: Esperance Western Australia

I'll be honest, I designed a flat bar bender some time ago that will bend 75mmx16mm cold and I used this. In one of the photos you can see it lying on the bench with a drill in front of it (red handle). It's only 30mmx8mm Mild steel Flat Bar so it bends fairly easily in the vice with some help from a hammer. I tried this tonight with the longer end sticking out and worked a treat.
08-08-2007 Over year old.
 
 
The Other One
Heliman
Location: Knoxville, TN

heli stand

Hey Chook

Very nice stand. An add on tool tray would be a cool addition that could move up down and around. It could also catch dropped parts.
08-08-2007 Over year old.
 
 
Chook
Senior Heliman
Location: Esperance Western Australia

MMMMM.
Nice idea. Now that's a challenge. Any ways to achieve this and tray types/sizes fellas? I use an egg carton and texta scribble to identify parts as I do the autopsy.
08-10-2007 Over year old.
 
 
Chook
Senior Heliman
Location: Esperance Western Australia

Hi fellow fliers,
I have been using the stand for a while now to support my Rappy's when in the shed. I have found that because the heli is off the bench the rear skid support dosn't spread out under the weight of the heli at rest. This keeps the tail rotor 15mm or so higher off the ground when you go to fly. My gear legs are already fitted backwards to help keep the tail clear. Every bit helps, so maybe just tie the skids together at the back with light wire that can be slipped off before you fly.
Has anyone had a go at building one yet? If so don't be shy give us a bo-peep. Cheers
09-04-2007 Over year old.
 
 
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Tools and Field Equipment > Work stand for 50/30 Raptors How to build thread
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