     |
Are you wanting to build a Rc Crawler?A few tips to help you get started with building a rc rock crawler.
One - you can purchase a complete chassis and suspension setup. Two - modify and rebuild an existing rc truck. Three - build a rc rock crawler completely from scratch. Or you can build your rc rock crawler using any combination you desire. There are a few ideas and tips you need to keep in mind no matter how choose to build your rc crawler. Let us look at some of these ideas so you can get to building your crawler. 
1. Suspension - This is the key component when it comes to building a good rc rock crawler. Suspension articulation is what you are seeking. Independent A-arm type suspension does not provide adequate articulation for climbing over steep rocks. You will need a rc rock crawling truck with a solid front and rear axle, with 4-link suspension. You want your spring and shock combination to be as soft as possible to allow for maximum axle articulation. 2. Chassis - A chassis with a low center of gravity is essential. This may be an obvious point, but moving every ounce as low as possible is going to make a huge difference when faced with a steep incline. If your weight is too high your rc rock crawler will roll over too easily. 
3. Tires - You are going to want large soft tires, with an aggressive tread pattern. You want your tires to flatten out from the weight of the rc rock crawler, this will give you the maximum traction when rock crawling. If your tires will not support your crawler without foam inserts, use the softest inserts that will do the job. If your tires are too hard and need some softening you can spray them WD-40 to soften them. The large over-sized tires are needed for ground clearance. It is much easier to add or remove your foam inserts if all you have to do is unbolt the bead-locks. If you are using rims that need to have the tires glued on, you will need to 3, 4 or 5 sets of tires glued up with different inserts or no inserts. I find it much easier to use the same rims and change tiers or inserts. 
5. Lock the differentials - This is the number one modification you need to do. In all other types of Rcing differentials are much needed aspect, but not in a rc rock crawler. They are a detriment. When you are working your way over a rock it is usually done one wheel at a time. If you do not have your differentials locked, when you start over a rock the differential would send the power to the opposite wheel that is not under load. When using a locked differential the wheel trying to get over the rock maintains constant power. There are many different ways to lock your differentials. You can pack them with JB Weld, modeling clay or purchase lockers. Using locked differentials will mean that your rc crawler is successful. You want to gear for torque. The objective is for powerful starts to get over the rocks, high RPMs will just flip your crawler over on its roof. So, gear your rc crawler low for high torque and it will be a productive crawler. Learn more about the Rc Electric Motor here.
These are just a few ideas to help you build your rc crawler so you can to start enjoying rock crawling. A few other items to keep in mind, you may want to consider 4 wheel steer, mounting your battery as far forward as possible, mounting your steering servos on top of each axle and if you are using a transmission lock the spider gear in the transmission. So, be creative building your rc crawler. Rc rock crawling can be a huge challenge, plus many hours of great fun.
check out the Rc Truck n Car Tuning swicki at eurekster.com Return to Rc Truck n Car Tuning from Build a Rc Crawler.
|
4. Bead-lock Rims - Using bead-lock rims make it much easier in tweaking your tires and foam inserts. 
