gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 21, 2012 16:56:50 GMT -4
Gang going to do a build on RCA's 600 Tiger. It's still work in progress but attched is where i was at several weeks back. We had it hovering but didn't want to do anything to it before the Hobby Show (NW Model Hobby Expo picture is of the Tiger at the show) So here's that the Tiger has in it: Chaos 600ESPLE mechanics SK720 Flybarless Gyro Plug-n-play CNC aluminum quad-blade rotor head 3 blade scale tail rotor Phoenix ICE 80 speed controller Castle CC BEC pro switching regulator I'll start with the mechanics, then the fuselage and then the detailing. Please feel free to make any comments as this is really my first posting for the builds that i've done. Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 21, 2012 17:31:48 GMT -4
Rear drive gearbox assembly: The first step in building this helicopter is assembling the mechanics. This starts out with using a Chaos 600 kit but with a few new components. First the rear rotor gearbox is modified by swapping the short front drive shaft and gears with the new longer front drive gear assembly. This is needed as this gearbox sits lower in the chassis. 1st pic is the original assembly, 2nd pic is of the new assembly Don’t worry about the position of the brass gear as you’ll adjust this once the gearbox is positioned in the frames. You can hold the halves together by using the 4 M3 x 8mm screws & nuts at the tail boom section of this assembly. If you use the longer screws on the main body you’ll just have to take them off when mounting on the frames. Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 21, 2012 17:36:44 GMT -4
Drive shaft bearing blocks For this step you’ll need to remove the brass gear. Once the gear is removed add one of the bearing blocks, then slide the brass gear back on the shaft with the setscrew facing the bottom. Then slide on the second bearing block. Ok first dumb question: How do you post multiple pictures in a message? Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 21, 2012 18:18:52 GMT -4
Once you have the assembly, place this on one of the frame sides as in the attached pic and temporarily attach it with several T3 x 12 screws and M3 specialty washers for the gear housing and 4 M3 x 10mm bolts for the bearing blocks. OK here's our first problem. The bearing block widths are made for the narrower mechanics. Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 21, 2012 18:37:41 GMT -4
Fix for our first problem. The bearing block widths are made for the narrower mechanics so we had to add 8 spacers (4 per bearing block) The picture shows the bearing blocks mounted between both frames. Once the spacers are in we started to mount the main shaft bearing blocks in the frame but decided to add a third bearing block as the main shaft is long enough and we figured that with the size of this heli the extra support would help. Attachments:
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Post by Dr. Evil on Feb 21, 2012 18:58:12 GMT -4
Nice write up.....
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 21, 2012 19:17:25 GMT -4
To get the third bearing block mounted we drew a line from the upper slots and bolt holes to the position of the frame just below the dip in the frame where the main drive gear sits. If you are going to do this you need to make sure you can drill and slot these holes such that they align with the upper bearing block mounting holes. If these holes are misaligned then your main shaft will bind and you don't want this. If you feel you can't do this then you should just use the two bearing blocks as i know this also works. The three main shaft bearing blocks were mounted to the frames using 4 M3 x 10mm bolts and the M3 specialty washers for each bearing block. Before tightening the bearing block bolts I temporarily installed the main rotor shaft and main drive gear to make sure the bearing blocks were all in alignment. After tightening the bearing block bolts if If you feel any resistance on the main shaft while spinning, re loosen the bearing block bolts and adjust the bearing blocks till you feel no resistance while spinning the main shaft. The motor mount was then positioned and attached to the frame using 4 M3 x 6mm and M3 specialty washers. Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 22, 2012 20:33:38 GMT -4
From this point on for the mechanics it was pretty much done by the book. I've attached a picture of where we mounted the speed controller. We wanted to make sure it was going to get some cooling air so we mounted it towards the rear of the right frame. We also wanted it mounted away from the receiver and but also close to the motor. Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 22, 2012 20:41:38 GMT -4
Here's where we mounted the receiver and the SK720. Since the battery will sit under the cockpit we mounted the receiver on the lower part of the battery mount and the SK720 sits underneath that. We did quite a few trial locations and this seemed to be the best combination. I could have done a better job of bundling the wires but all i had was zip ties so that's what i used. Attachments:
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 22, 2012 20:49:55 GMT -4
So still waiting for someone to tell me how to post several pictures to one posting. At this point everything is in place and all the wiring routed minus the tail boom. The mechanics were trial fitted into the fuselage and bolted in place and the cockpit frame and interior were added to make sure everything fitted. i had to move the battery wiring to the side in order to get the seats to sit the way they were suppose to but other than that it was a good fit. Attachments:
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Post by Dr. Evil on Feb 22, 2012 21:25:27 GMT -4
What are you using to upload your photos? Have you tried photobucket?
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 23, 2012 0:17:08 GMT -4
Dr. Evil was just using the brouse button to find jpg's in my folders and using this to upload the pictures. Thought that there should be somekind of upload button so a user could add multiple pictures to one post. Never used Photobucket but could look into it. thanks!
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bobsp12
FUN FLYER
The CHAOS theory rules my life
Posts: 155
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Post by bobsp12 on Feb 23, 2012 7:01:10 GMT -4
gugie...that Tiger is coming on well..... To add multiple pics on the one post, there is a small bit in blue that says "add image to post" right above the message box that you type in....just below the Smilie icons... When you open that you select the bit that says "many images" and do the browse thing on your computer and add as many as you like.....you can also resize them with that as well. Each item shows as a file just below the "image content" header. When you have all your files sorted, just select "Upload it" and the files will appear as a URL under your message. You can then scroll down a bit or separate each pic url file and add any captions you want. If you do a preview, you can then see the pics and your message and adjust them before posting. These instructions sound a bit messy and complicated , but it is easy and works well. The resizing fuction is something that most forums dont offer...
If your message posting page doesn't have the "Add image to post" line, then go back into the main forum page, go to the General section, then into the General board and into the "new photo upload thread" just click reply to the first post. It was initially a test item. I am not sure if everyone has access to it yet, but if you haven't, replying to that post should give you the ability to use it.
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Post by Dr. Evil on Feb 23, 2012 8:57:20 GMT -4
bobsp12....nice....I didn't even know that...LOL. I guess I gotten so use to photo bucket or pulling a pic. that I already have from somewhere else that has a url and copying it. LOL...learn something today.
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gugie
FUN FLYER
Posts: 154
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Post by gugie on Feb 23, 2012 11:58:55 GMT -4
Bobsp12... OUTSTANDING!! That's just what i needed to know. I still got Photobucket up and running also so now i have several ways of doing this. Thanks guys!
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