Let's Make Robots!

Chassis

OB1

Introduction: OB1 is a Service Droid I bought for experimenting with at home. I am not a professional programmer so I want to experiment more with relatively … Read more

T'REX tank chassis

It's been a long time coming but the T'REX robot chassis is here!

I've just been testing the final product so I thought I would post a few photos of the new chassis. The chassis is aluminium with a black powder coating. The tracks and struts are zinc with a black anodized finish. The wheels are zinc with a chrome finish.

Special limited offer for all LMR members!

Ok, officially this offer is over but if you contact Pome and tell her how beautiful she is (flattery will get you everywhere) you might be able to get this deal until the end of the week (9th of November 2013).

Robot chassis for experimenting with
The Service Droid is intended to be a reasonably low cost robot body that can then easily be fitted with various processors and sensors. I've posted the original … Read more
The Service Droid is a new robot kit I am designing. It is intended to be a low cost, D.I.Y. robot chassis with two 3 DOF arms. The gripper on the right arm is … Read more

Service Droid

Working for DAGU means I need to try and design products that are not just cool to look at or play with but are also affordable and easy to use for the beginer. Sadly this balance is not easy to acheive. Usually more fun / cool functions means more complexity and cost.

Now it only moves with IR remote
Using a
Hi Folks, This is my experimentation with cheap chasis and tracked wheel set which i found online. The whole set up cost me between $50 - $60. This is my infial … Read more

Aluminum Frame

I am trying to build an aluminum frame for my robot but I am having trouble finding good techniques to cut and bend it. Anyone know a good way to cut and bend aluminum for a frame? I have basic tools, but not anything fancy. The frame needs to be about 7.5 inches and relatively sturdy.

hacked chassis' moves too fast or not at all

So I built three little bots so far. 

One with a raspberry-pi, (6V motors):  


One with an arduino (12V motors):  

And another with an arduino but a hacked remote car (7ish, volt motors):  

Sneak preview of T'REX robot tank chassis prototype

 

Inspired by the Rip Saw tank, I have designed a new robot chassis called the T'REX tank chassis. I finally received all the parts for the prototype chassis. The entire chassis including gearboxes and tracks are all metal. The tracks have been anodized a gun metal grey colour.

Updated preview of new re-configurable, all metal tank chassis

Update: Just did a motor test using a fully charged 3S LiPo. These motor / gearbox combos are very powerful and will need a Wild Thumper controller to handle the peak current.

No load current: 0.6A
Nominal load current: 3A
Stall current: 11A+ 

This is definitely going to be the tank version of Wild Thumper!

Ideas needed for a quiet, high quality, small form factor chassis, wheels, and motors.

I'm looking for a source of a small (think deck of cards size) chassis for a robot.  I'm not interested in two wheel or cheap robots, I'd like a decent aluminum or plexi chassis with some higher quality motors and wheels.  Anyone have an idea or recommendation?

Plastics for robotics

So I'm trying to figure out how to best manage the funds I have for purchasing some construction material. I've decided to go with some plastics and lightweight thin aluminum I can cut by hand.

The issue is, I don't know what the different types of plastics have to offer in terms of machinability and robotics platforms, besides Expanded PVC and Polymorph, which I have worked with in the past and still have some pieces left, but I don't care much for working with those materials at the moment.

Building the perfect Beast (robot chassis)

2012 may be the year of the Dragon for China but it is the year of the robot chassis for me. I am trying to create a new range of robot chassis's and I'd like to know what features my robot building friends would like to see in a chassis. Obviously low cost and high quality are preferable but what else?

For example size? As far as I can see there is already a range of sizes on the market. Is there a size that's missing? I was looking at some cool wheels that were about 250mm (10 inch). Would you want a huge chassis and for what purpose?

Robot chassis

Hello everyone! Now i finished my robots chassis and i want to show it to you.

First picture is front of it:

And secon is from left side:

And these are wheels i may use on it:

And parts are taped with two-sided tape.

Best robot chassis

Was wondering what you guys thought the best "chassis" for robot development was.  Not looking for electronics or a "kit" but just a platform with wheels (or legs or whatever).  I like the idea of doing my own electronics (processors, sensors, power systems, etc.) and could/would eventually build my own from component parts, but I like the speed of starting with known motor/wheels/platform that are well matched and robust.  I have already fried a servo trying to start with that.  I also figure that by the time I bought motors, plexiglass, wheels, etc.

Locates fires and puts them out.
Using a
SplatBot MKIII is my first attempt at a fire fighting robot. The "Wild Thumper" 6WD chassis is the production version of my original 6WD chassis and the new flame … Read more
Cheap 4WD off road chassis for your robot
The chassis of the "Rebound" is perfect for small off road robots. The PCB has a radio receiver and dual "H" bridge. This walkthrough shows you how to make the … Read more

SSS - Servo Suspension System

This is my first experiment with the MakerBot. I am totally thrilled with this machine!!!

SSS (servo suspension system) is designed to support standard servo motors and act as a basic suspension. It is still a work in progress and has not been tested yet.

Will update results as soon as possible (still waiting to have my lab back).


I would like to know everyone's opinion on this  :)

Treads?

Hey guys, I have a question for you. I see many of you guys using the track and wheel set from Tamiya (http://www.sparkfun.com/commerce/product_info.php?products_id=321) that is special built to be compatible with their dual geared motors. For such a cheap price you get a very versatile tread kit that allows endless combinations of tread length and design, however, it seems what's gained in inexpense, is lost in quality.

Tread Chassis Design Question

Alright, so I am new to robotics as well as this site, but here is a question I feel I have to ask.  I need to ask because it will effect a future project I want to do when I am more experienced in Robotics.

 

Alright, so the theory behind this question has entirely to do with ground clearance with a treaded chassis.  I notice that every bot with treads has very little ground clearance, and was wondering if there wasn't another way to do the chassis so you could increase the clearance and what kind of effect it would have on terrain options.