New Savage project - stretched tvps!
 

So I sold/traded my flm tranny forward chassis, and have a complete X just hanging around, never ran. I decided to pick up a flux motor mount and plate, and maybe make my own tvps...

Mocked it up using a stock X rear center driveshaft, and a lst1 wheel cvd for the front center driveshaft. This stretches the wheelbase to around 16". Gives enough room to mount the lipo in front of the tranny, inside the tvps. Plan to use some al servo mounts to mount the servo to the inside of the tvp on one side. That should give enough room to fit the lipo in there.

Going to run a 1515 2d and a 5s 5000 25c lipo. Might run a quark 125 or a MMM.

http://i206.photobucket.com/albums/b...p/DSCF3241.jpg
http://i206.photobucket.com/albums/b...p/DSCF3242.jpg
http://i206.photobucket.com/albums/b...p/DSCF3243.jpg

Looks good so far linc. I look forward to seeing it finished. :great:

Sweet. You are talking about the origional 'X' right? Not the 4.6? I'm curious to see how the stock X diffs hold up to brushless without the metal casing. You might want to see how much you can get a new Flux gear box for. Probably would be way better then locking the plastic gears in 2nd.

I have the flux center shaft/gear coming for the x tranny (only difference is that part, everything else in the tranny is identical.).

Looking at body choices the firehammer mt body is just about right, and at 70 bucks not too bad. I would have to stretch the tvps out a bit more, looks like using a lst1 wheel shaft both front and rear as the center drives will get the stretch needed. Just need to pick up a few small parts and I can cut the tvps out.

Battery mounting looks pretty easy. I can use some of the thick delrin I have hanging around to make a battery try, and can also use that to tie the steering bellcranks to and mount the steering servo. The battery will have to sit slightly to one side but that will help offset the motor sitting on the other side. I will most likely mount the MMM as the flux mounts it. I may have to go bigger than the 1515 2d for this truck... Maybe the 1521 1y I have laying around... Plus I also have the flm towers and lst shock mounting kit. I doubt this will weigh much more than the flux, but I want some power.

How about using the centre driveshafts from the LST XXL?

I thought the Flux had all metal gears? And a steel spur?

Or maybe it was just the spur....

Don't wus on us - We want to see a full diff or slipperential in there...

They are not long enough, one is the same length as the stock lst2 and the other is about 1" longer, they may be identical to the muggy driveshafts. The lst2 wheel shafts are about 1.5" longer than the stock lst center driveshafts, and compatible with most dogbone cups.

The flux has a full metal geared tranny. The X uses metal input gears, and metal output gears. The 2 speed larger gears are plastic in the X tranny, but they are replaced with a single steel gear in the flux. That gear and shaft are the only parts that you need to buy to convert the internals of the x tranny to a flux tranny. Part number is 100905, and it is available on ebay, bought mine last night. The spur is also steel, but I have a plastic 47t on there right now. With that spur and the flux motor mount a 23t pinion is about as big as I can fit... That is fine though, I only need about 19-20t on the pinion to get the gearing right. I also have a steel spur, but have found them not really necessary.

Ok, I can make a slipper style setup like the old slipperential. I would prefer more reduction than the pinion on diff provides. I actually like the savage tranny, but I would like to have the option of a locked 2nd gear internal ratio for a slower spinning motor. The flux tranny is effectively an X tranny locked in 1st. Good for faster spinning motors, like the cc 2200 on 6s, but I would like to have a low kv motor on 10-12s...

Linc, what's up w/Donald duck! He must be your new helper!:mdr:

I found that digging thru some old stuff my mom gave me recently. Figured it would remind me of my youth... Maybe keep me a little younger at heart.

Looks nice. I'd like to do something like this myself.

Ideally, that is what my sav would look like... in reality, nowhere close.

So I priced some bodies... Cough cough....:surprised:

After that I decided to raid my new body box, turns out I have a ford 650 body for the GST/Genesis. Has a 15" wheelbase, which I can accomplish by using the savage XL driveshaft in front, and the stock X shaft in the rear. That still gives me enough room for the lipo in front of the tranny, and I can use some regular size tires without the truck looking silly. Plus the overall size reduction over my previous plan will help out the power system.

So the current proposed setup will have similar specs to the savage xl, but will have a rear mounted tranny with the flux motor mount, and a forward mounted battery tray/servo mount. Not sure what tires to run, might get it all built and just go with what looks best.

Power system will be a 1515 2d on 5s with a MMM, or possibly a quark 125b.

I may still make a larger truck, but need to sell some stuff before I drop $70+ on a new body...

Did some more measurements, and the rear center driveshaft from the Muggy will fit better than the xl driveshaft, so I ordered one of those. It is slightly shorter, and with that the truck wheelbase will be almost identical to the bodies wheelbase.

Just need to snipe a good deal on a set of flux tvps and I will be able to cut the new tvps.

Progress?

I have the muggy rear driveshaft, and am waiting on the flux tvps. Once they come in I can mock the rear of the truck up and figure out what I need to do to the front. Wheelbase will be right at 15", so I need to add a few inches to the front of the tvps I will be making. I like the 25 style tvps more than the X, but whichever front section works better with the flux rear is what i will use for mockup. Cutting the new tvps will not take long, I plan to make them symmetrical save for the area next to the motor which will be clearanced for a flux-style esc mount.

Still waiting on the motor back from neu...

So your still going for a longer wheelbase then the flm tvps give? Last i talked to you you talking about the 1/5 size but looks like you toned it down some.

Yeah, the 15" wb fits the proline 650 body almost perfectly. I have the body, and the front muggy shaft was 7 bucks, so it is a cheap build. A sheet of the 6061 al was 20 bucks, and I have everything else laying around.

My buddy is still working on the 5th scale chassis for the savvy. He is doing one for the 5t body, and also another to fit the 5b desert rat conversion 5t body for me. Should be nice. I have the power system for that lined up save for a good HV esc. I think Lutach will be able to provide me with something...

Hopefully you get something worked out soon, wouldnt mind a better balanced setup at least but the 5t size is exciting.

I should have it mocked up by this weekend, and hopefully get the tvps cut too.

Just received the TVPs (yay) and had a look at it mocked up. Looks like it will be pretty easy to cut them out. Battery mount may be a bit high up, but it is a monster truck... Balance side to side seems good with the motor offsetting the lipo. Wheelbase is very close to the 650 body, which I am happy about.

...linc just for your interest...

http://gcmachine.ca/index.php/rcstuff/desertboy

:D

Very nice. I hear people on the e-savy forum treat him like a god. Cant imagine why.:wink:

Hmm, I think my 15" wb truck will be a bit better than his setup...

My battery mounting will be higher, but I do not think that will cause my much issue.

I dont know about that linc. The savage has bad enough handling as is. Why make it worse?:neutral:

While my battery mounting may be a bit higher it will place more of the weight over the front wheels. That will help handling. Plus it is a basher, not going to try to race this beast. Might just sell it when I am done anyways.

...interesting comment...

...we hardly treat him like a god though...He does dedicated e-sav designs and he does them very well...as he is the only maker doing that then we try to look after him as much as he looks after the us / the platform...plain and simple...

...I was merely showing the link because it was similar...thats all...Now back to your regular programming...

...Linc i like what you have done / are doing...Just adds more variety to the mix...

All of it is very nice. I know where to look if I want to make my XL even bigger (temping!) Can't wait to see some photos Linc!

Yep, variety is great!

I have one of the tvps outlined, just need to drill the holes and cut the hole for the tranny. The second tvp should go quickly.

Heres a few pics for you people with no imagination...

http://i206.photobucket.com/albums/b...p/DSCF3338.jpg

A shot of the addl length that I added in front of the tranny, 4.2cm to be exact.

http://i206.photobucket.com/albums/b...p/DSCF3339.jpg

Rear is identical to the flux tvp, as is the front.

http://i206.photobucket.com/albums/b...p/DSCF3340.jpg

Looks like the material I am using is slightly thicker than the stock flux tvp.

http://i206.photobucket.com/albums/b...p/DSCF3341.jpg

Lookin good, what machine did you use to cut that? looks like its been water Jett'ed

I used a cheapo bandsaw and a hand file...

Love that make-your-own stuff! 3 cheers! that length will help things a bunch for sure

The doctor keeps telling me that length is not important... But I know she is lying, I just know it!

Thanks, I enjoy making my own stuff, kinda like sculpting or art without all of that creativity...

Those plates actually look good, nice clean cuts! I was surprised!

Nice cutting! i really need to learn how to do that... without it, i feel so limited...

Yeah, it is amazing a dumb ass like me can do anything right, huh!

Get yourself a jigsaw and some metal blades. And a sharpie. The profile was traced off a flux tvp. Al was 20 bucks shipped, and I have enough to do the lst chassis and the tvps, and a few small parts.

What happened here?

Got busy Cory, have not really had a chance to do anything rc for a few weeks, save for making lipos and lipo repairs... I guess life got in the way. And now I have poison ivy on my arms, legs, and face... I was clearing some of my land, and I guess nature got me back! So I guess rc is on hold for a bit.

So thats why your face is green in you avi? At least your fro is still intact! :mdr:

HAHA, good one. Yeah my face is actually red right now... Sucks. Anyways thats life, right!