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#9629 - 11/22/12 10:03 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
EF-1 Offline
MBN member
Registered: 05/15/11
Posts: 45
Loc: NH
Nice new toy.

I have seen these types of vehicles with all sort of attachments including snowblowers, loaders and backhoes. Also like the trailer with the hydraulic sander.
_________________________
You don't need a weed killer, if you have a Backhoe.
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#9630 - 11/23/12 07:29 AM Re: THE BEAST (tracked personal vehicle) [Re: EF-1]
E718 Offline
MBN member
Registered: 02/14/10
Posts: 52
Loc: rural Iowa
I think 20120 roller chain is 2 1/2 pitch.
Or watch ebay for some double or triple row chain and change drive sprockets.2 120 or 2 140
Attachment links should be available for most any size chain.
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#9651 - 11/24/12 06:01 AM Re: THE BEAST (tracked personal vehicle) [Re: camdigger]
camdigger Offline
MBN member
Registered: 02/16/10
Posts: 135
Loc: On Assignment
Originally Posted By: camdigger
Google Foremost Industries for track ides.

Then look at round baler belting for the web.

A simple pressbrake and some Iron will get you all you need to get your Bombi mobile.

Hint: the grousers can be spaced to engage every second tooth on the drive sprocket....


Check out a Russian made unit with the kind of tracks I recommend. http://www.youtube.com/watch?v=ny0S8VHpXSM&feature=related
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#9652 - 11/24/12 06:01 AM Re: THE BEAST (tracked personal vehicle) [Re: camdigger]
camdigger Offline
MBN member
Registered: 02/16/10
Posts: 135
Loc: On Assignment
Originally Posted By: camdigger
Google Foremost Industries for track ides.

Then look at round baler belting for the web.

A simple pressbrake and some Iron will get you all you need to get your Bombi mobile.

Hint: the grousers can be spaced to engage every second tooth on the drive sprocket....


Check out a Russian made unit with the kind of tracks I recommend. http://www.youtube.com/watch?v=ny0S8VHpXSM&feature=related
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#9654 - 11/24/12 08:46 AM Re: THE BEAST (tracked personal vehicle) [Re: camdigger]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
Haha that video is funny.
I was able to pick up one section of baler belt so far, need one more to make 2 tracks. I believe its the way to go but my sprockets are all steel and only 1 inch thick i think. Most of those vehicles have 2-4 inch sprockets with some sort of rubber teeth. May have to keep my eyea open for such.
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#9655 - 11/24/12 09:40 AM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
poleframer Offline
MBN member
Registered: 02/25/10
Posts: 159
Loc: Cave Junction OR
Cool score. While it's apart might be a good time to think of implements you'll be wanting, and how they will figure in. If you build like I do often the design will be based on what you can scrounge up along the way.
I'd assume you'll want some sort of blade in the front for snow plowing, and driveway grading chores.
Also a winch, preferably set up so you can pay out cable fore or aft, when you get a tracked vehicle stuck, you're good and stuck, and usually in some bad access spot. A little electric winch aint gonna get you out, nor run long enough to be yarding logs and such.
Putting a hydraulic pump on the engine probably wouldnt be too difficult, a valve spool in the cab, and think quick connects, so you can plug in things at either end of the machine.
Russell
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#9657 - 11/24/12 03:23 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
bunkclimber Offline
MBN Old hand
Registered: 02/14/10
Posts: 1097
Loc: Maryland *****
check out his track building rig,this fella custom builds his own tracks for a special vehicle(Hagglunds military vehicle)-it may give you some ideas on how to build yours
Custom tracks
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#9658 - 11/24/12 04:35 PM Re: THE BEAST (tracked personal vehicle) [Re: bunkclimber]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
Wow, the ultimate chevy. And those tracks look wicked.
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#9659 - 11/24/12 06:23 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
So tomorrow is a planed day in the shop. My buddy and i are going to try and get the engine flashed up just to make sure it runs, then its goinh to get pulled out. Cab will also be removed, as it will make it easier to figur out the track tightening system thats in there. Then the walking beam suspension has to be finished before engine gets reinstalled. I will try and take a few pics of different parts and post them up as i go along.
Oh, the engine is a 1.4 liter nissan (50-92hp) with a 4 speed a d the diff has 4.11 gears. Drive sprocket has an 11 inch diameter in the valley where the grousers will ride. I think since that is quite a bit smaller than what the vehicles would have jad for tires, the beast should have plenty of grunt power and top speed if ever achived would be 30+ mph. Speed is just a guess though, asssuming original vehicle may have had 15 inch tires and speed of 65-70 mph tops.
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#9660 - 11/24/12 07:45 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
mdlawnguy Offline
MBN Enthusiast
Registered: 03/07/10
Posts: 866
Loc: maryland *****
Could have had 14 inch friend had a nissan pickup in the 80s had that tire size with a 60 or so hp engine. Moved that 1/4 ton truck flash fast.
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#9661 - 11/25/12 04:51 AM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
bunkclimber Offline
MBN Old hand
Registered: 02/14/10
Posts: 1097
Loc: Maryland *****
my intention with the link was to show the track fab fixture,it holds everything in place and alignment during fit-up.If you were to use an actual drive sprocket even better,this would maintain pitch and alignment,and allow you to turn track to check how it runs.
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#9663 - 11/25/12 08:37 AM Re: THE BEAST (tracked personal vehicle) [Re: bunkclimber]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
I get side tracked to easy, but yes, that fixture is a heck of a good idea, and i can easly use one of the actual sprockets. It will make it easy to ha e the right pitch and keep grousers straight. I certainly do appreciate the link a.d any ideas you guys bring forward.
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#9664 - 11/25/12 01:20 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
mdlawnguy Offline
MBN Enthusiast
Registered: 03/07/10
Posts: 866
Loc: maryland *****
Did you contact the guy that you showed us? He maybe able to make the tracks cheaper then you could build them. Since he has the material and equipment already. Plus he may be able to help figure out the size you need.
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#9665 - 11/25/12 03:30 PM Re: THE BEAST (tracked personal vehicle) [Re: mdlawnguy]
gazza Offline
MBN member
Registered: 02/10/10
Posts: 39
Loc: Melbourne Australia
Here is a link to another forum, lots of information about snow tracked vehicles
Snow Trac ST4, Kristi, Thiokol/LMC, Tucker, Bombardier & Other Snowcat Discussions
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#9667 - 11/25/12 08:14 PM Re: THE BEAST (tracked personal vehicle) [Re: gazza]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
Today was a sucess, but how in the heck do i upload a vid or vid link from photobucket????? Anyone able to help me out? I want to share my excitement.
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#9668 - 11/25/12 08:51 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
Gator Offline
MBN Enthusiast
Registered: 02/15/10
Posts: 772
Loc: Corinth, MS *****
here is a copy of a post I made on another thread..

on photobucket copy the IMG code. Paste it in as normal text exactly like it is formatted in photobucket and your picture will show up. You can type in text around the picture as needed.

Here is what the text will look like. (minus the ' in the [IMG]). The text will be replaced with the picture in the post.

['IMG]http://i610.photobucket.com/albums/tt183/Gatorsain/Slew2.jpg[/IMG]





Just a test pic from my photobucket.
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#9669 - 11/25/12 11:02 PM Re: THE BEAST (tracked personal vehicle) [Re: Gator]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
Ok, going to try this again.

Here is first attempt to fire up the beast
http://s1340.photobucket.com/albums/o738...zps97f7d739.mp4

And the umphteenth time 20 minutes later

http://s1340.photobucket.com/albums/o738...zpsad554070.mp4
Now time for complete tear down.

Is there any way to directly embed a photobucked video into the post, so it can be watched right fron here? I know youtube vids can be, but i don't want to start a youtube account.


Edited by jeapadrenaline (03/11/13 08:56 AM)
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#9670 - 11/25/12 11:31 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada




Engine bay



Walking beam



Edited by jeapadrenaline (02/03/13 05:07 PM)
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#9677 - 11/26/12 02:29 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
jeapadrenaline Offline
MBN member
Registered: 09/28/12
Posts: 251
Loc: bc, canada
Ok, so here is a picture of the back walking beam axle inside the tub. The axle sides back to tension the track. Tensioning is done via homemade grease tube and piston (not yet installed), like on the old cat crawlers.
Second picture shows same shaft on the outside with walking beam in place. And third shows a closeup. (Note how limited the space is)

Now here is my question to you, more knowledgeable guys: how would you fasten these walking beams? I was first thinking of having the shaft threaded and drilled to use a castle nut, but there is not enough clearance for the nut there. So i thought maybe have grooves machined for "snaprings" but don't know if thats going to be strong enough. Any ideas or thoughts?





Edited by jeapadrenaline (02/03/13 05:11 PM)
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#9679 - 11/26/12 05:14 PM Re: THE BEAST (tracked personal vehicle) [Re: jeapadrenaline]
Chas Offline
MBN member
Registered: 04/19/10
Posts: 133
Loc: Richmond Hill Ontario Canada
Just a thought what if you drilled out the shaft say for a 3/8 or 7/16 grade 8 national fine bolt and make a cap to fit over the axle using the bolt to capture the cap on the axle. I don't know if this would weaken the shaft too much, I sort of get the idea it's a one inch shaft? The cap would just need to be large enough in diameter to be slightly larger than the bearing I think. The cap could also act to prevent end play as well.
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