He also mentions overshoot, I thought that was my code. On a few occasions I had to debug to be sure... Fun times with the MG995 haha, maybe the little motor will come in handy.
Xanadu & Bill: Just curious what voltage you were using on your MG995 servos. Is it possible they would last longer at lower voltage? Lately I've been running my servos directly off one Li-Ion cell, ~4.1 V Max.
They are a bit less jittery @5V or less, however there is HUGE servo to servo variation in jitter. Adding a 3300uF electrolytic capacitor per servo helps a lot. (More when I resume work on it)
Xanadu & Bill: Just curious what voltage you were using on your MG995 servos. Is it possible they would last longer at lower voltage? Lately I've been running my servos directly off one Li-Ion cell, ~4.1 V Max.
I'm using 5V now for lack of 6V supply, I'd like to run them at 6V.
I stepped up the Propeller's 3.3V signal to 5V. Probably isn't necessary but I want to give them the best chance of being accurate. I was using my scope to look at the signal and saw some strange things. I'm down to my last Prop board, and it has some power issues. I'm waiting on some more boards before I will continue.
They arrived, SHEESH. Comparing to the MG996R in the arm kit, there are significant differences. $5.81 servo has a bushing, not a bearing (kit servo has bearing). Amazon description says double BB. A few external physical differences, $5.81 servo case is 1/16" longer than kit servo. Internal PCB is very different.
But most important, they rotate in OPPOSITE directions when hooked up to a servo tester! I'll have to do some homework to find out which one is reversed, who knows, maybe neither servo is legit. They both have stickers that read MG-996R, which could be slapped on any servo.
Opposite directions? Gimme a break. I'm so disillusioned... one or both sellers are scamming me!
Sorry about that, chief! The old Maxwell Smart video clip trick! I was this close to using that now politically incorrect bit of humor from a kinder, gentler (and funnier) era!
In Louisiana - we do not make light of other's accents - Something about people in glass houses not throwing stones! Don't know how erco lost his - I believe he is a southern boy too!
Comments
That guy paid $20 each for his? OUCH
He also mentions overshoot, I thought that was my code. On a few occasions I had to debug to be sure... Fun times with the MG995 haha, maybe the little motor will come in handy.
They are a bit less jittery @5V or less, however there is HUGE servo to servo variation in jitter. Adding a 3300uF electrolytic capacitor per servo helps a lot. (More when I resume work on it)
I stepped up the Propeller's 3.3V signal to 5V. Probably isn't necessary but I want to give them the best chance of being accurate. I was using my scope to look at the signal and saw some strange things. I'm down to my last Prop board, and it has some power issues. I'm waiting on some more boards before I will continue.
They arrived, SHEESH. Comparing to the MG996R in the arm kit, there are significant differences. $5.81 servo has a bushing, not a bearing (kit servo has bearing). Amazon description says double BB. A few external physical differences, $5.81 servo case is 1/16" longer than kit servo. Internal PCB is very different.
But most important, they rotate in OPPOSITE directions when hooked up to a servo tester! I'll have to do some homework to find out which one is reversed, who knows, maybe neither servo is legit. They both have stickers that read MG-996R, which could be slapped on any servo.
Opposite directions? Gimme a break. I'm so disillusioned... one or both sellers are scamming me!
Edit: Cripes, look at the photo at http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=6221
HK sells a clone labelled "Towardpro" instead of Tower Pro. Should I power these with mismarked Chinese UitraFlrc Li-Ion cells?
Let the lowest price hunt commence!
That seller has a lot of gears & parts for builders, have a look at his store. http://stores.ebay.com/sktflyer/Toy-Hobbies-Robotic-Parts-/_i.html?_fsub=5276793015&_sid=1037297495&_trksid=p4634.c0.m322
:-)