i was wondering do yall know anything about a Omni base (H configuration) of define, strengths and weaknesses?
I know that it has the strength of strafing (gliding sideways), but it has the weakness of taking up an extra motor for the middle wheel that you strafe with.
I would probably do an X-drive if I were you.
why is that though, by using the x-drive for?
Well, are you using a motor for all 5 wheels on the H-drive, or just 3? If 5, the X-drive would save a motor.
Remember that this is posted in VEX IQ general discussion, ergo it’s meant for VEX IQ and not VRC.
In vex IQ, H drive wth 3 motors total is very, very common. I think it is personal choice in vex iq to do h drive or normal drive, but figure out design before you commit to doing an H drive.
Is your question related to how you would code an H-Drive in VEXcode IQ Blocks or about the merits of an H-drive in general?
Um, dont all vex robots run on battery? I mean, I dont think v6 diesels are legal
Omni H Drive base in VEXIQ is super common. Only downside was in games like last years where the cross wheel would get caught in the beams that were attached to the floor.
The fix for that and actually a best over all practice is to mount the center wheel on shocks. Last year we used the light/soft push ones and they worked out well. We went with a pair to keep things straight, but you might make out with just one.
Strafing wheels can be cumbersome though because you have to make sure the weight on the front and back are equal because if one side is to heavy then it will drag the robot in a sort of pivoting motion instead of side to side.
An H-Drive can use 3-5 motors while an X-Drive always needs 4 motors so motor wise I think H-Drive is better, but X-Drives don’t need the balance of weights on the back and front so I do favor X-Drives but if you know you will have a front and back balance and you want to conserve motors then I recommend an H-Drive with 3 motors.
Yes we use a controller, do you not?
I smell a troll. Does anybody else smell a troll?
Are you talking about me?
It depends on how strong you want the drive. For Vex IQ, I would say an H-drive works pretty well using 3 motors. But for Vex EDR I would say a 4 motor drive is essential, so an X-drive is better in that scenario.
Not an expert by any means, as others may have more experience. Our IQ team did an H drive our first season (Ringmaster). Main benefit is the ability to strafe left or right. I assume you are considering this vs X or tank drives since you are asking strengths and weaknesses.
The only benefits our kids saw was the ability to strafe, simply to build, simple to program, saves 1 motor over X drive.
There are challenges as others have pointed out. Staying straight is one. You need to be mindful of weight distribution as that will impact how well it stays on the line. So put the wheel where it would be balanced on both sides. Also, you will be using omni wheels all around, and they do pose more challenge to staying straight in auton. To solve some this issue, we’ve seen other teams use two sets of strafe wheels (one on center, and one near the back). The other challenge is how much does your robot weigh. If you are using 1 strafe motor then all of the weight of that robot is supported by just one motor. And it may go slower, especially when holding game elements. This is something our kids observed.
So, a lot of these need to be factored to really seeing what benefits you’ll gain vs the challenges vs which ones would just be a wash.
Not to be rude, but the robotics forum is not a chat room like hangouts or facebook(whatever you use). Its a place to discuss robotics and share info. It’s not really the place for the discussion of our everyday lives.
Social media exists for that purpose
sorry about that