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UTV/Buggy Fabrication For all those doing your own fabrication on the Yamaha Rhino and other UTV's


UTV/Buggy Fabrication For all those doing your own fabrication on the Yamaha Rhino and other UTV's

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  #1  
Old 05-31-2015, 09:02 PM
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deranged deranged is offline
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Anyone up for another build?

Well, here goes build #2....

Specs...single seat, 1000cc motor, 900#. Anyone still on here?

Justin
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  #2  
Old 05-31-2015, 09:15 PM
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let'er rip tatorchip
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  #3  
Old 05-31-2015, 10:29 PM
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Well, here we go.
Here is the lower rail section laid out on the flat acorn table to get things started.





And the front nose section tacked together.

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Old 05-31-2015, 11:58 PM
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Are you working with a kit, plans, or scratch?
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Old 06-01-2015, 12:31 PM
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I'll be watching!

E
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  #6  
Old 06-01-2015, 09:56 PM
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Well, allrighty then. Here we go.

I am building this from plans. It is a re designed piranha basically. The plans are from Krasch designs. He calls it the AR-51.

Here is where the rear a-arms, and the spool go. The front and rear plates, or bulkheads are water cut, pieces for some precision. There is a 4x2 tube on the bottom of this weldment that serves as support and for the spool adjustment front to back.

Here I am starting to fit things together. I have the pivot crush sleeves for spacers to keep things squared up.
Also the plate work is all keyed to lock things together.
Think I need more clamps??





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Old 06-01-2015, 10:00 PM
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Here is my little fab table I built just for the build. I have the center line marked down the middle to keep things nice and straight. This is the bottom rail, and the rear section going together.

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  #8  
Old 06-02-2015, 07:09 AM
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I like it! Is this going to be used at Silver Lake?
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  #9  
Old 06-02-2015, 02:05 PM
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Quote:
Originally Posted by Graham08 View Post
I like it! Is this going to be used at Silver Lake?
More like abused. LOL

Justin
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  #10  
Old 06-03-2015, 09:47 PM
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Well, I made a table to build the chassis on. It has a center line down the middle to line everything up with.


As I made the lower, and mid rails, I put a center line on the all of the perpendicular to direction of travel tubes to keep things centered. And then I used a string line, and a square to ensure things are all on the center line.

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  #11  
Old 06-03-2015, 09:50 PM
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Well, after that, I didn't take any pictures until I had a full basic chassis..







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  #12  
Old 06-03-2015, 11:59 PM
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Looks like Rick Krasch makes a kit/plans. Looking good!
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  #13  
Old 06-04-2015, 12:13 PM
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Pretty cool tiny build. I like it so far. What is the powerplant from? Streetbike? Snow machine?
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  #14  
Old 06-04-2015, 09:12 PM
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It is a Krasch design car. AR-51.

She will be powered by a GSXR 1000 sport bike motor. A sled motor would would be killer, but packaging the clutch would pose a challenge. You could stretch out the chassis to make it fit.

So, it really helps to have access to a water jet... Here is the rear sprocket, rear rotor, front rotors, shock mounts, and a couple random smaller parts.



Gotta keep it cool somehow!



MMMMMMM, MOAR parts!!! Calipers, master cylinders, 930 cv's braided lines, cv boots.



And the rear spool!


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  #15  
Old 06-04-2015, 10:30 PM
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JaysinSpaceman JaysinSpaceman is offline
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Question for you. I have thought about waterjet cutting brake rotors for various projects over the years but have never actually done it because I wasn't sure about the material choice. What do you cut your rotors from? Mild Steel, Stainless (what grade?), AR plate or...?

The chassis looks good so far. I wish I had the time to build something like this, it looks like a lot of fun.

Thanx,
Jaysin
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  #16  
Old 07-30-2015, 02:51 PM
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Whew, sorry for the late reply. I have been in Mexico for the last month on a project for work. As for the material, it is your typical A-36 steel. They were drops laying around at work. BUT, it just so happens that we put in a zinc/nickle plating line for a brake manufacturing company that is going to run my rotors through their line. That will completely get rid of the scale on the steel.


My last car, I used 304 stainless steel. I chucked them up in a lathe and put a cross hatch pattern in them, and they did well for what I did.

Justin

Quote:
Originally Posted by JaysinSpaceman View Post
Question for you. I have thought about waterjet cutting brake rotors for various projects over the years but have never actually done it because I wasn't sure about the material choice. What do you cut your rotors from? Mild Steel, Stainless (what grade?), AR plate or...?

The chassis looks good so far. I wish I had the time to build something like this, it looks like a lot of fun.

Thanx,
Jaysin
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  #17  
Old 07-30-2015, 03:37 PM
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Very nice,love to have the time also,that's going to be wicked fun
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  #18  
Old 07-31-2015, 01:18 PM
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Nice man! It looks like it's going to be a lot of fun!
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  #19  
Old 08-05-2015, 12:15 AM
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I like keep the pics coming
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  #20  
Old 08-05-2015, 02:13 AM
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JaysinSpaceman JaysinSpaceman is offline
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So your spool, does the brake rotor and sprocket bolt between the spool and the cv joints? I ask because I am in the process of designing a much smaller version of an offroad kart and while it's going to use a swing axle style irs and u-joints instead of cv joints I had thoughts of putting the drive sprocket and brake between the carrier bearings (for support) but if you're doing it the way I am thinking you are it would make the sprocket and brake easier to service. Packaging can be hard to figure out while designing something like this.

Thanx,
Jaysin
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