Quote:
Originally Posted by audietron
I noticed some voltage drop "twitch" in the video do you think you might need to reduce the gear ratios to optimize the current flow better for a complete robot with more motors?
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There was indeed Chatter as the voltage dropped a significant amount. This was after a decent amount of drive practice and testing, so the battery was reasonably depleted. We have found that we are burning through batteries, as a high speed 6 cim drivetrain draws a large amount of power, far more than a lower speed robot, such as our Bot last year. We did anticipate this, though it is more than we thought, resulting in lower drive times than expected. We will be investing in better, and more, batteries. I think I remember seeing a thread about that here a while ago.
Going with a high speed 6 Cim drivetrain has both advantages and disadvantages. We do not have the pushing power that a lower speed drivetrain would, especially since this drive is not traction limited. This means that we would have to work to avoid any and all pushing matches in high gear, and depend more on our speed and maneuverability to get around opponents. If we need enough power to push through an obstacle, we would then have to change to low.
Are there any members out there who have experience with a non traction limited drivetrain? Thoughts, Experience, Anecdotes? I am curious as to how it could affect gameplay and strategy, as well as other design decisions on the Robot.
Quote:
Originally Posted by mlantry
You wouldn't even have to weld it you could use the versa hole pattern and bolt your upper frame to the bumper supports instead
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I am having trouble visualizing utilizing the method that you mention with a design similar to ours. Could you be more specific in your description?
Why bolts as opposed to rivets? Where would the bolts go? How would you achieve the Hex shape with minimal machining resources, and simple construction techniques similar to this one?
The Versaframe is remarkably, well, Versatile, but it can be difficult to create angled designs and structures in certain applications without access to a sheet metal sponsor or an in house metal brake, or some other way of creating bent sheet parts. Any tips, tricks, or thoughts about how to achieve this type of structure, and strangely angled parts in general with VersaFrame and rectangular tubing construction? Or is there an equally simple, better way of doing this?