brushless 1/5 4wd conversion about to begin! couple questions.

[KaztheMinotaur]

The technical drawing of the gears also list the diameter.

[KaztheMinotaur]

Pinion: https://sdp-si.com/eStore/PartDetail...upID=591&Qty=1

Look here for the spur: http://www.qtcgears.com/RFQ/default....rs/KHK064.html

Part number SSA1-60. The bore is 10mm but the tech lady said there was enough material there to drill the bore out to 12mm.

QTC doesn't have anything with a hub & set screw

[Ryu James]

Originally Posted by KaztheMinotaur

I think Mod 1 gears is the way to go...there are a lot more gearing options.

The bore on the 60T mod 1 spur is 10mm though...shouldn't be that hard to drill it out to 12mm.

Mod 1 60/15 brings the speed down to 48.33 mph.

qtcgears.com also has some good choices.

if youre gonna go with mod1 gears you will want to get a 5mm shaft 2215. there was 2 of them on ebay recently that didnt sell. they were brand new and were up for like $350 if i recall. the seller was jvmaxx. i have bought several motors from him and he is a great seller. anyway, i want to stick with mod1.5 and 8mm shaft myself. if all else fails i will switch to mod1 as a last resort but i think the mod1.5 setup is gonna work just fine. i think a 40t/15t setup is gonna work. i could be wrong but i will know soon. also, Mike initially said that he was gonna have mod1.5 pinions from 11t - 22t. i imagine he just got in the most popular sizes initially since everyone was hounding him about getting these mod1.5 pinions. perhaps he will have the less common sizes like 11t - 14t shortly. a 40t/11t mod1.5 setup would put the speed at 51mph which i think would be reasonable. or there may be a way to get a 42t spur somewhere. i think a 42t spur would fit in the ramp. you could even go with one of those 48t spurs if you wanted to build some shims for the center diff mounts and mount your motor a little higher off the chassis maybe. the center driveline would be angled a bit but it could work. idk, basically there are a lot of options to make the mod1.5 work. same for mod1 also. i had considered going with mod1 myself but i figured they must use mod1.5 on 1/5 scales for a reason and was worried that the mod1 gears wouldnt be strong enough to handle the torque.

edit: i just saw those 8mm bore pinions in mod1 that you found. i didnt see those before i mentioned having to get the 5mm Neu.

[Ryu James]

oh btw Kaz and others,
i talked to OSE and they said they would have these mounts in stock for the 2215 in about 2 weeks. you might want to email them in a couple of weeks if you havent already found a mount. http://www.offshoreelectrics.com/pro...jwr-mount-flat

also, i am having 3 made of my own, so i will have 2 extra. we worked on CAD designs on tuesday and already have the 3x3 alum block. the shop is supposed to have them done this week. they are gonna be awesome. CNC'd from solid billet 6065 t6. they will have all the holes needed for great airflow. i cant wait to get them back. i still have no idea how much they are gonna cost me but i am hoping not very much.

[KaztheMinotaur]

I ordered one of those strap mounts from Jim Williams at southriverrcboats.com

I think if we could get down to a 10T Mod 1.5 pinion that would be ideal sdp-si.com has a 12T

qtcgears.com has a 42T spur but it has a hub so you would have to grind it off or something.

You might be able to shim the locker mounts and top plate up to get the 42T spur to fit but then you migh run into binding on the dog bones. sdp-si.com does sell u-joints...

[aqwut]

Originally Posted by Ryu James

oh btw Kaz and others,
i talked to OSE and they said they would have these mounts in stock for the 2215 in about 2 weeks. you might want to email them in a couple of weeks if you havent already found a mount. http://www.offshoreelectrics.com/pro...jwr-mount-flat

also, i am having 3 made of my own, so i will have 2 extra. we worked on CAD designs on tuesday and already have the 3x3 alum block. the shop is supposed to have them done this week. they are gonna be awesome. CNC'd from solid billet 6065 t6. they will have all the holes needed for great airflow. i cant wait to get them back. i still have no idea how much they are gonna cost me but i am hoping not very much.

Dude, that rampage looks AWESOME in person... the pictures does not do it justice... A buddy of mine had the rampage and brought it out this past weekend, it was sweet as heck... Because of that, I have the MT Pro coming my way... I can't wait.. That rampage is awesome man...! You've got to post of the brushless video when you're done..

[Ryu James]

i just ordered a couple 40t spur gears and i found a 12t pinion gear that will work. its kind of thick but that will give me more room to set mesh and where i mount my motor.

https://sdp-si.com/eStore/PartDetail...87&GroupID=591

https://sdp-si.com/eStore/PartDetail...74&GroupID=591

[Ryu James]

i just punched in the figures on the rc-calc and the 40t/12t gearing i think will work sweet. that gives a theoretical speed of 57mph which is the same as all my 1/8s. in reality it will probably do around 50mph which is what i am after. now i just have to hope that this gearing will work and provide cool temps.

[KaztheMinotaur]

Yeah, I think that will be good also.

I have a nice small CPU fan that will run real nice on a 3S Lipo. That should cool the motor.

[KaztheMinotaur]

It's SO BIG part 2:



There are (8) 50V 330uf caps and dual 12 guage power and motor wires. USB programable. I'm not too thrilled about the 12 guage wires, especially since the sales dude said they were 10 guage. We shall see. Pencil eraser for scale.

[nitrostarter]

those controllers are actually being put through their paces in the boating world. Despite their huge size, they are actually doing great and handling the power requirements of the larger HV boats.

[KaztheMinotaur]

Yeah, I know thats why I got it. I was trolling around on OSE and RRR and read about them. As you said they seem to be doing well so far.

Lots of heat sink space on which to put a fan or peltier cooler.

Anyone see a problem with the dual 12 guage wires?

[suicideneil]

Dual 12g wire = 6g wire? Or is it done differently on that scale of wire diameter?

I dont see too much of an issue myself, those wires should carry plenty of current before they start to warm up, just have to solder on a nice fat 6-8mm bullet plug good n proper.

[KaztheMinotaur]

I have some 6mm bullet connectors coming.

I'm having trouble getting the programming file to extract though. It came as a .rar not a .exe

Originally Posted by suicideneil

Dual 12g wire = 6g wire? Or is it done differently on that scale of wire diameter?

every 6awg sizes it doubles in dia. so not quite a 6awg