Re: [TANKS] Motor Question
It sounds like you've given it some thought. The torque limiters are nice, but keeping it under 100A still seems like it would be a challenge. Don't forget those fuses! lol :) -Don On Tue, Jul 1, 2014 at 1:52 PM, Aaron Stern wrote: > Thanks for responding so fast. I'm glad to hear the winch motors are > likely to be abke to hold up over many minutes of use, if I kill of my > ampflows I might try a winch motor connected to the same gearbox. > > The ampflow motor is rate at 235 amps at stall. I dont plan to go past > 100 amps though as any thing past 118 amps is going down the hp slope > anyway. I will include standard fuses, mechanical torque limiters, and > electronic current sensors, and six temp sensors (on the four high side > mosfets, and on the motors themselves) to avoid running over 75 amps for > more than short periods and to prevent ever crossing 100 amps even > temporarily. > > -- > -- > You are currently subscribed to the "R/C Tank Combat" group. > To post a message, send email to rctankcombat@googlegroups.com > To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com > Visit the group at http://groups.google.com/group/rctankcombat > > --- > You received this message because you are subscribed to the Google Groups > "R/C Tank Combat" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rctankcombat+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- Donald Shankin -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [TANKS] Motor Question
Thanks for responding so fast. I'm glad to hear the winch motors are likely to be abke to hold up over many minutes of use, if I kill of my ampflows I might try a winch motor connected to the same gearbox. The ampflow motor is rate at 235 amps at stall. I dont plan to go past 100 amps though as any thing past 118 amps is going down the hp slope anyway. I will include standard fuses, mechanical torque limiters, and electronic current sensors, and six temp sensors (on the four high side mosfets, and on the motors themselves) to avoid running over 75 amps for more than short periods and to prevent ever crossing 100 amps even temporarily. -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [TANKS] Motor Question
Having done some off-roading in my old winch equipped '77 Scout II I offer that winch motors are often used for extended periods and are geared very heavily to prolong life and increase capability. Mike B > On Jul 1, 2014, at 1:04 PM, Don Shankin wrote: > > I'm assuming that "max" means 100A @ stall. I personally would be _very_ > uncomfortable w/ an H-bridge that is rated at only 10% over the stall current. > > Re: the winch motors: > I would think that they'd be able to run fine for our applications. They're > pulling a very large load, sometimes up an incline. I've never winched a > vehicle, but I would assume that it's a relatively slow process, so I would > think that they could run for a decent duration, especially w/ such a > (relatively) small load. My concern would be what type of rpm you'd get from > one. > > -Don > > >> On Tue, Jul 1, 2014 at 12:23 PM, Aaron Stern wrote: >> Hello again, >> >> I just wanted to pop in quickly to ask about some specific motors that I >> found to see if anyone has tried them before. AmpFlow sells some very >> powerful high performance motors with attached gearboxes. The E30-400-G is >> the model I have ordered (out of stock, a few more weeks of waiting to go). >> The specs show that it is a max hp of 2.1 at a little over 100 amps. I hope >> not to run at that high a torque but it would be nice to know that it is >> available if needed. Ive built my own Hbridge circuit and it SHOULD be ok >> up to 110 amps but I dont want to push my luck. >> >> On a related note has anyone tried winch motors before? You can find a 3.2 >> hp 24V winch motor for $100 very easily. My only concern would be the >> windings overheating from extended periods of operation and shorting >> themselves. >> >> Thanks for the help, >> Aaron Stern >> >> -- >> -- >> You are currently subscribed to the "R/C Tank Combat" group. >> To post a message, send email to rctankcombat@googlegroups.com >> To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com >> Visit the group at http://groups.google.com/group/rctankcombat >> >> --- >> You received this message because you are subscribed to the Google Groups >> "R/C Tank Combat" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rctankcombat+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. > > > > -- > -- > > Donald Shankin > > -- > -- > You are currently subscribed to the "R/C Tank Combat" group. > To post a message, send email to rctankcombat@googlegroups.com > To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com > Visit the group at http://groups.google.com/group/rctankcombat > > --- > You received this message because you are subscribed to the Google Groups > "R/C Tank Combat" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rctankcombat+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [TANKS] Motor Question
I'm assuming that "max" means 100A @ stall. I personally would be _very_ uncomfortable w/ an H-bridge that is rated at only 10% over the stall current. Re: the winch motors: I would think that they'd be able to run fine for our applications. They're pulling a very large load, sometimes up an incline. I've never winched a vehicle, but I would assume that it's a relatively slow process, so I would think that they could run for a decent duration, especially w/ such a (relatively) small load. My concern would be what type of rpm you'd get from one. -Don On Tue, Jul 1, 2014 at 12:23 PM, Aaron Stern wrote: > Hello again, > > I just wanted to pop in quickly to ask about some specific motors that I > found to see if anyone has tried them before. AmpFlow sells some very > powerful high performance motors with attached gearboxes. The E30-400-G is > the model I have ordered (out of stock, a few more weeks of waiting to go). > The specs show that it is a max hp of 2.1 at a little over 100 amps. I > hope not to run at that high a torque but it would be nice to know that it > is available if needed. Ive built my own Hbridge circuit and it SHOULD be > ok up to 110 amps but I dont want to push my luck. > > On a related note has anyone tried winch motors before? You can find a > 3.2 hp 24V winch motor for $100 very easily. My only concern would be the > windings overheating from extended periods of operation and shorting > themselves. > > Thanks for the help, > Aaron Stern > > -- > -- > You are currently subscribed to the "R/C Tank Combat" group. > To post a message, send email to rctankcombat@googlegroups.com > To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com > Visit the group at http://groups.google.com/group/rctankcombat > > --- > You received this message because you are subscribed to the Google Groups > "R/C Tank Combat" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rctankcombat+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- Donald Shankin -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[TANKS] Motor Question
Hello again, I just wanted to pop in quickly to ask about some specific motors that I found to see if anyone has tried them before. AmpFlow sells some very powerful high performance motors with attached gearboxes. The E30-400-G is the model I have ordered (out of stock, a few more weeks of waiting to go). The specs show that it is a max hp of 2.1 at a little over 100 amps. I hope not to run at that high a torque but it would be nice to know that it is available if needed. Ive built my own Hbridge circuit and it SHOULD be ok up to 110 amps but I dont want to push my luck. On a related note has anyone tried winch motors before? You can find a 3.2 hp 24V winch motor for $100 very easily. My only concern would be the windings overheating from extended periods of operation and shorting themselves. Thanks for the help, Aaron Stern -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[TANKS] Motor Question...
Any motor macks out there? I was wondering if one had to take the kicker out of a normal cars (12v) or Truck (24v) starter motor.. 1.. Would this work for RC tanks? 2.. If feasible will it work in reverse too? We can pick them up cheap cheap from any scrap yard IZ --~--~-~--~~~---~--~~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat -~--~~~~--~~--~--~---
