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we had this problem with alpha. I currently use a GWS (i think, the little black heat-shrinked ones) and they dont appear to reduce the throttle. Gyros and electronize dont mix! they just arent quick enough to respond, i tried ours in alpha and it sat there shaking!
The electronise can run gyros I tried one in thuggernought before and it worked ok, if you get the shakes it is usually a sign of the gain being set to high on the gyro.
Basic Gyros can restrict the ability of the bot to turn however. As for a mixer I use the IMX-1 from robotlogic.com its very good.
Ive had no probs with the GWS mixer. Its only about £10 iirc. Small and wrapped in heat-shrink as Alan said.
Eddy
The RC in RC out mixer from Technbots has served KatRip well. I didnt notice any lack of spin with and without the mixer.
But in all honesty, i didnt know some mixers resrict the speed of a robot spinning. I see your point now as they are built for aircaft. Hmm something for people to look into maybe. But i thought it just mixes the channel, not restrict them.
Mr Stu
The IBC also has a dead band for those who would rather have the robot turn more slowly instead of having to over correct yourself when you jam the stick a little too far.
Dont most, Evan all Speedos have a small amount of deadband?
Regards
Dave moulds
P.s. Im not good with electronics so let me off for silly quetions :)
Dave, it is essential to have a small deadband on speedos, some may have too much (standard 4QDs) and some are adjustable (Vantec & Roboteq). The wider the deadband the less stick movement you have left to control the power. Too small a deadband and the robot may creep due to tolerances in the transmitter / receiver and speedo. Effectively, within the deadband, stick movement has no affect on the power to the motor. Not sure I understand what Aaron is referring to.
More advanced speedos also allow you to adjust the relationship between stick position and power to the motor. Most basic speedos are a linear response. Again, more advanced speedos allow an exponential to logarithmic relationship.
Paul
I think he Aaron is trying to point out that there are two settings for the size of the deadband.
Joe Townsend
Ah gotchya, Thanks for clearing that up for me Paul.
Regards
Dave moulds
If anyone with a mind for code (not me, causes me headaches and a desire to put my foot through the monitor) and feels like playing with the idea of a exponential to log relationship for an IBC (seeing as the source code is available. Thats a point- will see if we can put it up on fw.org) then that would be great. I tries doing such a thing last year, but, as i mentioned, I got too stressed to easily. Electrons are a load of gits, steel is friendly :-)