I wish i could draw stuff on my computer to show what i mean. for the turret I am gonna try some sort of base that is on a pivot point towards the front of it. On the back is a nut basically, that gets screwed onto a bolt, and that is turned by a small motor, to give it transverse.
Up and down, i was basically gonna do the same thing, but sideways, and mount the motor to the moving base. I don't think now that the v-belt system will work for treads, any other suggestions for a tank of this type? On Apr 27, 6:31 pm, Weston <[email protected]> wrote: > K, once I start building that part, I'll try to see if I can set that > up, but use electronics. I was also thinking some sort of chain that > hung from a cage and attached to the paintball gun. I would use a > screw drive to push and pull the paintball gun, but since it is on > that pivot point, it would raise the barrel up or down. To allow for > transverse, mount that whole on a setup like your swivel in the middle > of that, and have another to push screw type thing to push and pull > the whole unit. I think it might be too complicated to get to work, > and I don't even know that it would work. > > For tracks though, would the v belt thing work? I was thinking more on > it; I could just use 2 and connect them in between with whatever I > could use for treads, and not have to have the 2 extra wheels for > each > axle. It would sort of be like your Tyng track system, but using v > belts and the pulleys for them, since I definitively can get them > before I can get a treadmill belt. Since v belts do hold when > tensioned, but slip when they get locked up, that would save on a > drive system, so I could use the m1 sprocket type chain for that > part. > > On Apr 27, 1:04 pm, Steve Tyng <[email protected]> wrote: > > > I see your doing a tank destroyer. Review the mount design I did on > > my 25 pounder field piece: > > >http://groups.google.com/group/rctankcombat/browse_thread/thread/eaae... > > > Included is a link to a Youtube video of the setup. I've trashed the > > manual control of the design and am adapting a screw drive setup for > > traverse and elevate. I'll try to post some pics of that soon. > > > Steve Tyng > > > On Apr 26, 10:08 pm, Weston <[email protected]> wrote: > > > >http://www.servocity.com/html/spt100_pan___tilt_system.html > > > > would that probably be too big to use? > > > > On Apr 26, 3:01 pm, Weston <[email protected]> wrote: > > > > > I could go with the tri pact speed control, but then I would need the > > > > turret transverse for precision aiming, which I do not know how to do. > > > > I also still haven't fully decided yet on what marker I want to use, > > > > and how to control it. I also have to decide on the track and > > > > suspension system.I am definitively going to use a Cheap Control > > > > System. > > > > > I'm thinking for a track take a notch vbelt and have the track pads > > > > attached to it on the outside. I will have the pullies inbetween 2 > > > > wheels for all the drive and idler and road wheels. That way, the belt > > > > is what is powered, the pads provide traction, and the wheels are for > > > > looks and help with little objects forcing up on the pads. What does > > > > any1 think? > > > > > On Apr 26, 1:30 pm, Steve Tyng <[email protected]> wrote: > > > > > > For you first tank I'd recommend sticking with what has been proven in > > > > > combat. The M1 motors are your best bet for propulsion. > > > > > > http://www.tncscooters.com/product.php?sku=106115 > > > > > > These can run at 12V just fine and at that voltage will provide a 3 to > > > > > 4mph speed. Frank Pittelli can provide you with custom drive > > > > > sprockets that will adapt the M1's to standard ansi chain. > > > > > > For a cheap controller you can build the on/off Tri-Pact controller: > > > > > > http://rctankcombat.com/articles/speed-control/07TriPactSpeedControl-... > > > > > > If you want proportional control I'd recommend bitting the bullet and > > > > > get a decent dual channel mixing controller: > > > > > > http://www.robotmarketplace.com/products/RP-SWDR.html > > > > > http://www.robotmarketplace.com/products/VT-RDFR33.html > > > > > > If those controllers are to much for your budget someday Cheap Control > > > > > Systems is supposed to introduce a controller based on generic scooter > > > > > controllers but you may have to hold your breath a while for that. > > > > > > Steve Tyng > > > > > > On Apr 26, 7:47 am, Weston <[email protected]> wrote: > > > > > > > I was trying to stay at 12 volts, but all the motors that would be > > > > > > powerful enough are 24v, so I'm going to have to have 2 batteries, > > > > > > which seems like that would take up an awful lot of space. What size > > > > > > is most batteries that are used? I was thinking just a regular car > > > > > > battery, but 2 seems to big. > > > > > > > On Apr 26, 12:00 am, Derek Engelhaupt <[email protected]> wrote: > > > > > > > > *Occasionally* the Victors and Vantecs come up for sale on Ebay. > > > > > > > That's > > > > > > > where I got mine. I have an active search on Ebay that notifies > > > > > > > me when > > > > > > > they come up for sale: "Vantec RDFR*" and "Victor 88*". Those > > > > > > > are the > > > > > > > search terms I use. I got two Victor 883s for about $150 shipped > > > > > > > and my > > > > > > > Vantec RDFR38D was also right around $100. But like I said, they > > > > > > > don't come > > > > > > > up often on Ebay. When they do, I buy them. I'm using (and a > > > > > > > lot of other > > > > > > > guys) the Unite geared motors like > > > > > > > these:http://tncscooters.com/product.php?sku=106118orthese:http://tncscoote.... > > > > > > > Both are great motors. I > > > > > > > have two sets of the first type and a set of the second type. > > > > > > > Both types > > > > > > > work great. You have to keep in mind that an ISU-152 (also > > > > > > > called a > > > > > > > JSU-152) is a large vehicle in 1/6th scale. It's larger than my > > > > > > > 1/6th scale > > > > > > > Sturmtiger. > > > > > > > > Derek > > > > > > > T065 > > > > > > > SV016 > > > > > > > KV-2 in progress > > > > > > > > On Sun, Apr 25, 2010 at 10:10 PM, Weston <[email protected]> > > > > > > > wrote: > > > > > > > > True, I put all the prices into an excel spreadsheet and it > > > > > > > > comes out > > > > > > > > to about $750. I still wound need the paintball marker, all the > > > > > > > > building materials, the treads and such. I was just looking > > > > > > > > there for > > > > > > > > now, and then gonna look elsewhere to see if I could get the > > > > > > > > same > > > > > > > > stuff or equivalent for less than what they want. I don't > > > > > > > > really know > > > > > > > > much about this stuff, so that is why I'm asking for help. > > > > > > > > > On Apr 25, 8:07 pm, Mike Måne <[email protected]> wrote: > > > > > > > > > Those parts seem awefully expencive! You might be able to > > > > > > > > > improvise > > > > > > > > > for some of them. Try exploring these sites: > > > > > > > > > > All Electronics:http://allelectronics.com/ > > > > > > > > > > Surplus Centre:https://www.surpluscenter.com/ > > > > > > > > > > -Mike M. > > > > > > > > > > On 25/04/2010, Weston <[email protected]> wrote: > > > > > > > > > > > I might switch to the ISU-122s variant, it has a ball > > > > > > > > > > shaped manlet > > > > > > > > > > and a double-baffle muzzle brake, If I decide to make the > > > > > > > > > > turret have > > > > > > > > > > that 11 degrees of turret transverse. The ISU-122 is also > > > > > > > > > > called > > > > > > > > > > JSU-122, so I don't know what to look for now, but > > > > > > > > > > wikipedia calls it > > > > > > > > > > the ISU-122, so I'm gonna stick with that. > > > > > > > > > > > I might buy a 1/32 model, and then also use it to lay out a > > > > > > > > > > paint > > > > > > > > > > scheme before I even start. I would get a scale drawing at > > > > > > > > > > AVFNews.org, but you have to buy 5 at $2 each, and I only > > > > > > > > > > need 1. They > > > > > > > > > > don't have a 1:32 of the ISU-122/JSU-122 , but they have a > > > > > > > > > > 1:48. > > > > > > > > > > > I still need to decide if I want turret transverse, so > > > > > > > > > > depending on > > > > > > > > > > how complicated that is determines if I make the S variant > > > > > > > > > > or not. I > > > > > > > > > > also have to figure out a paintball gun to use, and how to > > > > > > > > > > fire it. I > > > > > > > > > > would prefer the .68 caliber since I can find that a lot > > > > > > > > > > around where > > > > > > > > > > I live for cheap. > > > > > > > > > > > The following list of parts is what I am currently looking > > > > > > > > > > at right > > > > > > > > > > now. I just have to see if it will all fit inside it once i > > > > > > > > > > find some > > > > > > > > > > specifications. > > > > > > > > > > > Control System > > > > > > > > > >http://www.cheapcontrolsystems.com/ > > > > > > > > > > DeWalt Motor > > > > > > > > > >http://www.robotmarketplace.com/products/BP396505-20.html > > > > > > > > > > DeWalt Gearbox > > > > > > > > > >http://www.robotmarketplace.com/products/BP397892-05.html > > > > > > > > > > IFI Victor 883 > > > > > > > > > >http://www.robotmarketplace.com/products/IFI-V883.html > > > > > > > > > > Turret Elevation ESC > > > > > > > > > >http://www.robotmarketplace.com/products/0-FT-TINYESC.html > > > > > > > > > > Turret Elevation Motor > > > > > > > > > >http://www.robotmarketplace.com/products/0-GM11A.html > > > > > > > > > > Battery > > > > > > > > > >http://www.robotmarketplace.com/products/0B-35-925.html > > > > > > > > > > > -- > > > > > > > > > > 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 > > > > > > > > > > athttp://groups.google.com/group/rctankcombat > > > > > > > > > > -- > > > > > > > > > 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 athttp://groups.google.com/group/rctankcombat > > > > > > > > > -- > > > > > > > > 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 athttp://groups.google.com/group/rctankcombat > > > > > > > > -- > > > > > > > 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 athttp://groups.google.com/group/rctankcombat > > ... > > read more » -- 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
