Actually it's quite common for metal casings to be ground (pardon the pun). Most motors I've used in projects are wired this way, as well as things like your computer, dvd player, etc...
On Fri, Feb 6, 2009 at 1:44 AM, Doug Conn <[email protected]> wrote: > > Yeah, that's what the diagram shows in Figure 2, all right. I'm used to the > configuration they show in Figure 1. Figure 2 makes sense to me only if the > motor case is grounded, but grounding the case seems like a bad idea. > > - Doug > > > It seems like that would only work if the motor case was grounded, and > there > are good reasons why you don't want to > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Joker > Sent: Thursday, February 05, 2009 8:26 PM > To: R/C Tank Combat > Subject: [TANKS] Re: Motor Noise > > > Actually, thats what i did, and i'm pretty sure thats what all the > diagrams told me to do. Seems crazy, but thats the recomendation. > One cap going from + to -, one cap going from + to case, one cap going > from - to case. I found multiple articles suggesting this. Here is > the link to one article: http://www.teamdelta.com/pdf/tde_an1.pdf > > So far, i just did it to my 'test' motor. I figured i'd use an extra > motor in case i messed up, or couldn't put it back together, but i > figured that part out. I figure this, along with the new automotive > relays with diodes in them, should do the trick, or else its back to > the drawling board. > > Jeremy > > > On Feb 5, 7:29 pm, "Doug Conn" <[email protected]> wrote: > > I can't tell from the photo ... did you solder one lead of the capacitor > to > > a motor power line and the other end to the motor case ? If so, I don't > > think that's wise. > > > > - Doug > > > > > > > > -----Original Message----- > > From: [email protected] [mailto: > [email protected]] > > > > On Behalf Of Joker > > Sent: Thursday, February 05, 2009 7:20 PM > > To: R/C Tank Combat > > Subject: [TANKS] Re: Motor Noise > > > > Ok, took a few more days then i figured, but i finally got some > > pictures. I posted them in the files section. Uh, how do i put them > > in the message? I'm sure i use to know how, but i forgot. Anyhow, > > they are in the files section. Name stars "M" and has the specific > > thing that i'm trying to point out. I put it all back together, and > > works as good as when i started. > > > > On Jan 31, 1:14 am, Don Shankin <[email protected]> wrote: > > > I was going to suggest that you buy some diodes as well, but it looks > like > > > you're all set. What type of caps did you buy? (electrolytic, ceramic, > > > expensive mylar...?) > > > > > Also, I don't know what you paid for the caps from Amazon, but if > you've > > > never been to the site before I usually get all of my stuff from > > > futurlec.com. They are by far the cheapest place I've ever seen for > > general > > > components all the way up to things like ADCs and microcontrollers. > The > > > only downside is that the shipping can be hit or miss sometimes, and on > > one > > > order (out of dozens that I've placed) I had to wait for a while. > > Otherwise > > > they've been awesome. Also, I think they're based in australia, so you > > guys > > > may have better luck with shipping down there > > > > > On Fri, Jan 30, 2009 at 3:26 PM, Joker <[email protected]> > wrote: > > > > > > I broke one open. I'll take pictures of it tonight and post them. > > > > Didn't see any capitors in the one's i bought off ebay. Bought a > > > > whole bunch of 0.1uf cap's off amazon. figured i'd try to install > > > > them to keep from frying relays. I also bought some relays with > > > > diodes in them, in another attempt to keep me from frying relays. > > > > I'll have to see if all my little bits work soon. I figure its this, > > > > or start running my tank at 12v instead of 24v. > > > > > -- > > > ---------- > > > Donald Shankin > > > Computer Engineering Undergrad > > > Blue Marble Security Member > > > IEEE Vice Chair, MTU Chapter > > > NSBE Telecommunications Chair, MTU Chapter > > > CAEL Partner > > > (507) 301-2499 > > > [email protected] > > > [email protected] > > > ----------- Hide quoted text - > > > > - Show quoted text - > > > > > -- ---------- Donald Shankin Computer Engineering Undergrad Blue Marble Security Member IEEE Vice Chair, MTU Chapter NSBE Telecommunications Chair, MTU Chapter CAEL Partner (507) 301-2499 [email protected] [email protected] ---------- --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
