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View Full Version : PROTODIE- single seat MXT kart



ProtoDie
11-22-2013, 07:50 AM
I was browsing thru MBN and realized I never did a build thread on our MXT buggy.
This is the real budget one for kids or adults 6.5hp or 13hp or bigger. also did one with a 350 warrior motor and reverse

we have been building these for years, so nothing new.
Thought I should throw some of the actual build pics up to help other members with their builds

https://scontent-a-ord.xx.fbcdn.net/hphotos-ash2/268718_233434976674726_7729976_n.jpg

edit: pics too big.

will resize and post

ProtoDie
11-22-2013, 08:18 AM
lets try again

rollcage
https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn2/1400392_680545081963711_573357321_o.jpg

swing arm
https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-frc1/901411_680545111963708_8312534_o.jpg

front control arms
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-frc3/1412719_680545068630379_978579191_o.jpg

ProtoDie
11-22-2013, 08:20 AM
MOAR PICS


https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/1412719_680545395297013_1043046261_o.jpg

https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-ash3/1417566_680545405297012_1079469952_o.jpg

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-ash3/886153_680545411963678_1906285046_o.jpg

MOAR to come

biker
11-22-2013, 10:34 AM
Thats very nice. Lots of work here.

ProtoDie
11-22-2013, 11:09 AM
Thanks here are some more

https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-frc3/1402892_680545768630309_187682488_o.jpg

https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-ash4/1404427_680545805296972_2106825704_o.jpg


https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-ash3/1417691_680545785296974_1292661735_o.jpg


https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-prn2/1465941_680545885296964_1495644800_o.jpg


https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-frc3/1399447_680545931963626_942909478_o.jpg


https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-ash3/1403030_680545941963625_1238765506_o.jpg


https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn2/1400287_680546028630283_1840768861_o.jpg


https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-prn2/1421039_680546168630269_113934663_o.jpg

https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-frc3/1404504_680546351963584_1854886116_o.jpg

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/906460_680546348630251_1529190217_o.jpg


https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-prn1/893016_680546391963580_599954144_o.jpg

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-frc3/1397611_680546485296904_152301879_o.jpg



https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-ash4/1397619_680546508630235_1249568517_o.jpg

https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-prn2/1397939_680546521963567_1089072123_o.jpg

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-ash3/1421023_680546575296895_1695012600_o.jpg

sqweeker
11-22-2013, 02:26 PM
Very nice, as much attention to detail as your big cars.
Cool........

Chikin
11-22-2013, 02:30 PM
Just cool! If I was a kid (who says I'm not now) I would be in hog heaven to get one of these.

MrBracket
11-22-2013, 02:31 PM
super cool little buggy!

Curious about one thing I saw in this pic:

https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-ash3/1417691_680545785296974_1292661735_o.jpg

Why the grease fitting in the kingpin tube?? Am I missing something, or wouldn't that spin around the rod end joints and not the bolt??

Just wondering, not sure why I noticed that?? Very stout little buggy, well done!

Chikin
11-22-2013, 02:39 PM
super cool little buggy!


Why the grease fitting in the kingpin tube?? Am I missing something, or wouldn't that spin around the rod end joints and not the bolt??

Just wondering, not sure why I noticed that?? Very stout little buggy, well done!

I want to take a guess and answer this. So I'm assuming that it has a solid bolt that goes threw the whole spindle. Hence he added a grease zerk.
With the bolt and the heim positions. It would make the heim spin as the pivot. Neat way to do the spindles.

If I'm wrong. Please correct me. Just figured it since that's how my original track set up was.

MrBracket
11-22-2013, 04:00 PM
I want to take a guess and answer this. So I'm assuming that it has a solid bolt that goes threw the whole spindle. Hence he added a grease zerk.
With the bolt and the heim positions. It would make the heim spin as the pivot. Neat way to do the spindles.

If I'm wrong. Please correct me. Just figured it since that's how my original track set up was.

That's how I see it too Chikin, and that means that the bolt does not spin in the kingpin tube. It would all rotate as a unit inside the rod ends.

In any case, awesome little buggy!!

Love the use of the Utility Channel for seat and pedal positioning! Very Clever!

Xbird
11-23-2013, 02:40 PM
same style setup i use--i think jgsturbo likewise. spindle tube pivots around pin, heims provide the up and down.

Masteryota
11-23-2013, 04:04 PM
How well does that three link swing arm work? I was wondering if someone had thought about doing something like this before. Love the pics.

K-fab
11-23-2013, 05:12 PM
Bolt thru everything and tightened would only make the helium balls pivot.

No vertical movement though them - it's a simple single arm front suspension and the whole thing moves.

I'll go out on a limb and say there was another design that used a zerk, but it's no longer needed. Just a hole filler now.

Heims also allow for camber to be adjusted and still allow pivoting.

deaner
11-24-2013, 08:27 AM
Cool, got an shots of the seat sliders (part attached to the seat)? Have you used these on larger buggies?
Love the drain cover.

Duane
11-24-2013, 10:40 AM
Cool, got an shots of the seat sliders (part attached to the seat)? Have you used these on larger buggies?
Love the drain cover.

X2. Like to see how the clamps and sliders work.

Codeman
11-24-2013, 07:15 PM
Very cool my kids would love this.

Duane
11-24-2013, 07:19 PM
Very cool my kids would love this.

Can He have it ready for Xmas? :p

rgvkid
11-24-2013, 11:58 PM
Protodie, I love the MXT! Its the first Minibuggy that got me into Minibuggies!!!

Thanks for the pics.

I love your ingenuity!

ProtoDie
11-25-2013, 06:08 AM
missed a bunch ,,,was gone over the weekend.

luckily you guys got it all figured out with out me :)

yes the grease zirc is the grease the king pin bolt.
earlier design did not have heims but just steel tabs.
with the heims we could skip the zirc.

Kfab is right, heims were added so we could adjust camber.

even with the kids carts we keep trying to gain every little bit for racing and tuning



Unistrut was used for the seat sliders and the front pedals are adjustable too.

this way buggy can be changed from adult to kid and back in very little time

Unistrut has flat locking nuts or threaded plates that drop in and lock into place with a 1/4 turn.
By using this we could build different block, brackets, risers, or what ever needed to fit the kid or adult

Yes, I have used this in a few full size buggies too. The normal seat sliders can get full of dirt and not work so well over time.
Plus the unistrut saves an inch or so in height

3 link rear
yes, this works real good. These little buggies are not long travel thou. maybe 6" of travel most of the time.
by adjusting the outer aluminum bar mount locations,,,,,you can change how much the rear steers when you throw it into the corner.
so if you set on one side of the buggy,,you can watch the axle turn

Thanks for the kind words guys

armymp
11-27-2013, 08:12 PM
I can't be the only one that noticed that his garage floor drain has his logo on it

deaner
11-28-2013, 08:42 AM
I can't be the only one that noticed that his garage floor drain has his logo on it

Cool huh?

ProtoDie
11-29-2013, 02:28 PM
Thanks guys :D

I had to make HD steel covers to replace the plastic ones so I can drive the fork lift over them.

so why not dress them up with the PTD logo ?

cuda
10-18-2014, 10:57 AM
I just have a question about the steering rack. Is it a center load rack or did you make a bracket for an end load rack? Where did you get it? I need a similar setup and made bracket to allow for center load orientation on my end load rack. But I'm not crazy about the way it came out. Also if you have a picture of the set up that would be very helpful
Thanks!

ProtoDie
10-18-2014, 11:47 AM
yes it is a small end load rack converted to center load
let me see if I have any cad pics

ProtoDie
10-18-2014, 11:58 AM
here is a design pic of the rack and bracket

cuda
10-18-2014, 08:31 PM
Perfect, thanks! Its very similar to what I did.