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-   -   BELT Drive Conversion - XTM Mammoth ST Pro (https://www.rc-monster.com/forum/showthread.php?t=20257)

MetalMan 05.18.2009 11:32 PM

Quote:

Originally Posted by Urgeoner (Post 288150)
Nice work, u did all the machining urself? what tool do u use if so?

Did all the work myself, with a scroll saw for cutting, drill press for drilling, also chucked an end mill into the drill press for light milling.

Quote:

Originally Posted by D8 Driver (Post 288151)
great CG, Looks strong.

Thanks :yipi:

Quote:

Originally Posted by What's_nitro? (Post 288186)
I'm not familiar with Solidworks. How did you go about "syncing" the other components? On that interface, can you select the direction of rotation and add a ratio between the first and second axles, then sync the second gear/pulley set to that second axle?

Quote:

Originally Posted by anson (Post 288192)
Looks good.

Have you checked out the mechanical mates in solidworks? There is an easy option for gearing. You should be able to work it out.

The other components are "locked" together as mates, not synced together.
Sounds like I need to look into mechanical mates and add a ratio.

Thanks guys!

anson 05.18.2009 11:37 PM

Quote:

Originally Posted by MetalMan (Post 288197)
Sounds like I need to look into mechanical mates and add a ratio.

Thanks guys!

That's is pretty much it. You might need to add a circle sketch to your gears for the pitch diameters which you can then easily mate together using the gearing option under mechanical mates. Just line them up, and mate, and all should be sweet. Then you are a step away from connecting the front, center and rear pulleys together with belts.

Solidworks is fun. :)

What's_nitro? 05.18.2009 11:38 PM

So is Inventor..... :whistle: :mdr:

MetalMan 05.18.2009 11:59 PM

Okay, thanks for the tips guys! Drew a circle (sketch) on each the original gear files (diameter equal to the pitch diameter), and hid the circle sketches. Mechanical mates worked perfectly! This is very exciting :yes:

What's_nitro? 05.19.2009 12:06 AM

Awesome. Got any video yet? :lol:

MetalMan 05.19.2009 01:25 AM

Uhh, sure?

<embed width="748" height="361" type="application/x-shockwave-flash" wmode="transparent" src="http://img.photobucket.com/player.swf?file=http://vidmg.photobucket.com/albums/v132/4x4pede/Belt-Drive%20Mammoth%20ST%20Pro/centerunit.flv">

(If that doesn't work for you, you can view the video here, just make sure to make it full size and enlarge the viewing window)

What's_nitro? 05.19.2009 01:32 AM

Quote:

Originally Posted by MetalMan (Post 288229)
Uhh, sure?

I kinda meant it like "Hey you figured it out so lets see some video of this truck driving around now." My humor doesn't carry well through type. :mdr: That's very cool, though. I haven't figured out the animations in Inventor yet.

MetalMan 05.19.2009 01:34 AM

I know, I fight sarcasm with more sarcasm :yipi:

Jabe 06.06.2009 04:52 PM

Is there any updates?
Pictures that you could post?

MetalMan 06.07.2009 08:07 PM

Somewhat of a teaser:
http://img.photobucket.com/albums/v1.../isometric.jpg

The project of mine from which the above picture was taken has used up a good portion of my free time, but now it's pretty much done :rules: and will be turned in tomorrow. As a result I have nothing physical to show updates of.

And the shock bodies are set to transparent in that image.

What's_nitro? 06.07.2009 08:15 PM

Looks awesome MM!

MetalMan 06.08.2009 02:31 AM

And here's more... I would have showed the ensuing images in a single video file to demonstrate its mobility, but the truck assembly within SolidWorks is apparently too complex for my laptop (shouldn't be the case though - it's custom made and has good specs). So pictures will have to suffice:

Front suspension:
http://img.photobucket.com/albums/v1...Pro/front1.jpg
http://img.photobucket.com/albums/v1...Pro/front2.jpghttp://img.photobucket.com/albums/v1...Pro/front3.jpg

Rear suspension:
http://img.photobucket.com/albums/v1...0Pro/rear1.jpg
http://img.photobucket.com/albums/v1...0Pro/rear2.jpghttp://img.photobucket.com/albums/v1...0Pro/rear3.jpg

Steering:
http://img.photobucket.com/albums/v1.../steering1.jpg
http://img.photobucket.com/albums/v1.../steering2.jpghttp://img.photobucket.com/albums/v1.../steering3.jpg

MetalMan 06.08.2009 02:33 AM

Rendered wheel showing model tree (to get an idea of what I did to make the wheel):
http://img.photobucket.com/albums/v1...0Pro/wheel.jpg

Drivetrain:
http://img.photobucket.com/albums/v1...line2-Copy.jpg

Belt routing and steering bellcrank:
http://img.photobucket.com/albums/v1...ering-Copy.jpg

What's_nitro? 06.08.2009 07:48 PM

I want one.

MetalMan 06.09.2009 12:00 AM

Quote:

Originally Posted by What's_nitro? (Post 293953)
I want one.

Give me an email address and you can have the 30+mb of SolidWorks files :angel:

BlackedOutREVO 06.09.2009 12:04 AM

Quote:

Originally Posted by MetalMan (Post 294092)
Give me an email address and you can have the 30+mb of SolidWorks files :angel:

Sending PM:party:

What's_nitro? 06.09.2009 08:31 AM

I'll need to get Solid Works first.... :mdr:

bucci 08.04.2009 11:21 PM

wow that is bad a$$ im just tryin to get a mout to go like the rest or rc monster conv. mounts on here

Metallover 08.05.2009 12:33 AM

Any updates on this?

MetalMan 08.07.2009 02:11 AM

Yes :yes:

Today the truck went on its maiden voyage! First impressions: it's very quiet, except for the motor and tires, and the rear belt skipping. The front belt is tensioned by no less than 2 springs, and the rear belt has a fixed tensioner which needs to be tightened. Previously the belts were skipping A LOT but has been mostly fixed with two rods connecting the front/rear shock towers to greatly reduce chassis flex.

Pics should be up tomorrow, and vid will be posted sooner or later.

What's_nitro? 08.07.2009 02:25 AM

Cool.

rootar 08.07.2009 06:23 PM

hurry up with the pictures and videos and ........... well hurry up!

lol

Urgeoner 08.17.2009 09:45 PM

+1 yes! hurry up w/pictures and videos!

big greg 08.29.2009 05:00 AM

you dont have pics and video yet???????????? geez lol

MetalMan 08.30.2009 12:21 PM

Nah, nothing yet :sleep: The project's been shelved temporarily because of tensioner and belt slipping issues.

BL_RV0 08.30.2009 04:07 PM

:cry: I want to see some video!

MetalMan 08.31.2009 02:22 AM

It wouldn't be representative of this truck's goals, unfortunately. So far there is slippage in the belt(s) with just 1/8 buggy tires, and as you can imagine I plan on being able to use 1/8 truck/truggy tires/wheels. This project has just been set aside for a bit while I focus on other projects which IMO are more important.

Metallover 08.31.2009 06:48 PM

Are you using HD belts?

MetalMan 08.31.2009 11:12 PM

They are Powergrip GT2 belts, the manufacturer Gates claims that the tooth profile is supposed to be one of the strongest, and capable of carrying a significantly higher load than their HTD belts.


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