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HomeOff Topics › Custom R/C tank help
03-12-2010 02:53 AM  8 years agoPost 21
fire_boy92

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houston TX

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Yeah thats What Im planning for the upper chassis. Kind of like the tuber below I built from scratch out of plans in my head lol. The cnc parts are the main chassis plate, two stand off swingarm mounts, the idler wheel carriers and road wheel carriers. Eveything on top of that will be tube frame. I attemted a total tube tank a while back but didnt like where it was headed.


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03-15-2010 03:30 PM  8 years agoPost 22
fire_boy92

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houston TX

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Started the wood mock up.... Good thing I did, I had totally forgot to draw a part of one of the pieces. I didnt make any notches in one piece for the swingarms to hinge on. Would have sucked to find that out after shelling out the $$$ for cnc cutting. I knew I needed it but just put it off in the drawing and then forgot about it.

Here is a picture.... more to follow soon

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03-15-2010 10:22 PM  8 years agoPost 23
fire_boy92rrApprentice - houston TX - My Posts: All  Forum  Topic

This is what my cad looks like now.

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03-29-2010 05:49 AM  8 years agoPost 24
fire_boy92rrApprentice - houston TX - My Posts: All  Forum  Topic

Making a little progress, Heres where I stand. sorry for the crappy phone pics.




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04-05-2010 08:20 PM  8 years agoPost 25
fire_boy92

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houston TX

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Progress.... well close to it, I just got a 28" X 5'x 1/4" thick aluminum sheet given to me!! I should be able to cut two complete tank chassis sets out of this sucker. Now I just need some 3/4" sq aluminum tube for the tracks and I will really be able to get rolling.

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04-06-2010 08:52 PM  8 years agoPost 26
dukes-my-dog

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marshall mi usa

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looking good

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04-07-2010 05:27 PM  8 years agoPost 27
Machinehead01

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Lower Michigan

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Tracks...
What are you using for tracks?

Tom

"You judge according to the flesh; I am not judging anyone."

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04-08-2010 03:39 AM  8 years agoPost 28
fire_boy92

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houston TX

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Good question ..... Hmmmmmm tracks ... yeah I should think about that lol. The tracks have always been the hold up on this thing. I think I have thought of something worth trying. It involves aluminum channel and aluminum tubing with some steel cable.... We will see how it goes. When I get around to it I will post pics. Hard part is I need about 200+ tracks that are identical. Fun Fun

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04-08-2010 01:47 PM  8 years agoPost 29
dukes-my-dog

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marshall mi usa

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you can get this and on the rcgroups there is a guy who makes cnc ones

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04-08-2010 02:15 PM  8 years agoPost 30
fire_boy92

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houston TX

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hey dukes, how wide is that track? I need about 2" or just a little wider. What about quality? Most tank tracks I find are too narrow and arent intended for the speed I plan to put to them.

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04-08-2010 03:37 PM  8 years agoPost 31
Machinehead01

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Lower Michigan

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For speed...
I would recommend a double cogged belt. It will have the flexibility and with having cogs on both sides will give bite as well. You might have to settle for an odd width, but it should work.
You also may have to step to bigger bogie wheels as they may catch on the belt.

Tom

"You judge according to the flesh; I am not judging anyone."

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04-08-2010 05:19 PM  8 years agoPost 32
fire_boy92

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houston TX

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Im pretty limited on my width due to my design. Im going to attempt to make a few track links myself and see how it goes. It shouldnt be too hard to do, just time consuming. I have calculated costs and im keeping it around $25-$30 per side on the tracks.

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04-09-2010 01:13 AM  8 years agoPost 33
dukes-my-dog

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marshall mi usa

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they are 2 in" and not to bad in quality it can pull a car on level ground .
http://www.tamiyausa.com/product/ca...hp?sub-id=33000
http://www.tamiyausa.com/product/it...roduct-id=56014

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04-09-2010 01:16 AM  8 years agoPost 34
dukes-my-dog

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marshall mi usa

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04-09-2010 01:49 AM  8 years agoPost 35
fla heli boy

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cape coral, florida

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I've got a pretty good eye.... something doesn't look square in your pics. Your front guide wheels do not look in line with the rear set. Not banging on you. I like what you're doing. It's just that I can see things right off that aren't square or equal. Just don't ask me to remember your name....

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04-09-2010 02:15 AM  8 years agoPost 36
fire_boy92

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houston TX

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You do have a good eye ... and an accurate one. This is just a mock up and I have been throwing it together pretty quick. When I glued the swingarm mounts to the frame some of them rotated a little bit. It casued the arm to be off square and transferred down through the bogie wheel shoe. No big deal for now since this is not the real chassis. Im going to have it cnc'd and all the holes will line up square. If I tried to run my mock up I would be running right off the tracks lol.

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04-09-2010 02:19 AM  8 years agoPost 37
fire_boy92

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houston TX

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dukes... I bet those tamiya tracks would probably work fine but if I remember they are pretty pricey, worht looking into though. I have posted on that forum too and havent gotten much interest.

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04-09-2010 02:22 AM  8 years agoPost 38
fire_boy92

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houston TX

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I need to finish one thing before starting another... Im already thinking of tank #2. Slap one of these in the center...

After that tank #3 will be a single or dual seat one that I can drive.

Of course this is all in my 15year plan.... someone has to finance this stuff.

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04-09-2010 02:45 AM  8 years agoPost 39
Saint728

rrProfessor

Honolulu, Hawaii

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For scale steel tracks, guides, and pulley wheels have a look on the link I posted near the top of this page. It sells everything including gear boxes. http://www.tankzone.co.uk/cart/tam_t1.htm After you get to this page scroll down to the bottom to see what I'm talking about.

Take Care,
Cheers, Patrick

Check the hotties in my Gallery
http://rc.runryder.com/helicopter/gallery/9019/?all=photo

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04-09-2010 08:32 AM  8 years agoPost 40
dukes-my-dog

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marshall mi usa

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i got a set for 30 bucks each from you guy on there that sells the cnc one, i will try and find his name or if you want i will sell my spare set for what i payed for them

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