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Old 11-04-2008, 09:52 PM   #1
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Default My E-Jato Build

I have had the idea to make an E-Jato for a few months. I recently bought a roller and have finally decided to make it into an E-Jato.

I started it a few days ago. I picked up some L shaped aluminum from Home Depot and started to make a motor mount. After working on it for a little, I gave up. The aluminum was too thick and heavy to work with. I went to work today and I saw we had a few motor mounts. I picked up a Team Associated B4 motor mount plate.

I made a template out of clear lexan and drilled two holes so I can mount the motor plate to the Jato transmission case. I then mounted the slipper clutch assembly onto the shaft. I needed to put a small washer onto the shaft because the slipper plate was slightly hitting the motor plate. With the washer, it fits fine.

After the plate was secure to the transmission, I mounted my gear. For now, I went with a stock Rustler VXL spur. Its a 48 pitch, 83t gear. Then, I mounted my motor, a Mamba Max 5700. To go along with that, I picked up Losi pinion gear, a 48 pitch 25t gear. Everything mounted fine with no problems.

I noticed the setup was not 100% solid. I decided to make a brace from the motor plate to the chassis. For this I used a piece of scrap aluminum. With the brace, everything feels nice and solid.

I am now in the process of laying out my electronics onto the chassis. I plan on mounting my ESC next to the servo and my receiver right behind the servo.

I still have to add a few parts. I messed up cutting my top plate. I cut too close to the antenna mount, so I will be getting another top plate tomorrow. I also want a new set of turnbuckles, I will probably go with the Traxxas red turnbuckles. I will also get black RPM arms instead of the blue. I need a set of tires, body and a battery and it will be ready!

Links to pictures:
http://s50.photobucket.com/albums/f311/RobF353/E-Jato/

Let me know what you guys think!
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Old 11-05-2008, 10:12 AM   #2
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Is there a way you could rotate the motor plate to lower your motor? If you get it closer to the chassis, it will lower you CG, helping handling more.

Where do you plan on putting a battery? Is there enough room for an inline pack, or do you plan on saddle packs?

Good project, I will keep watch.
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Old 11-05-2008, 09:42 PM   #3
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Thats the lowest my motor can go. Its not that high off the chassis, should be ok. I planned on mounting a battery tray onto the chassis and securing the battery with velcro straps.

Here are the parts:
http://www.impaktrc.com/product_info...oducts_id=2544
http://www.impaktrc.com/product_info...oducts_id=2067

Saddle packs seem like a good idea, but I havent seen any other E-Jatos with that setup.
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Old 11-08-2008, 07:53 PM   #4
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I have finished the Jato!

First, I used a battery holder from a Tamiya kit. This keeps the battery from moving side to side. I mounted this by drilling 2 holes in each side of the chassis. Then, I used a Team Associated carbon fiber shock tower to secure my battery down. I also used Traxxas part #4944, TMaxx aluminum bellcrank posts. I drilled 3 holes, which match the holes in the carbon fiber shock tower, in my chassis and attached the posts to the chassis. Then, I put in my battery and secured the carbon fiber shock tower to the posts.

I decided to go with a Traxxas 2216 micro receiver. Since there isnt much room on the chassis, I thought a smaller receiver would be better. I simply attached the receiver to the chassis using double sided tape.

Next, I mount my ESC next to my motor. Since there is a cut out int he chassis there, I cut out a piece of lexan and secured it to the chassis using 3 nuts and bolts. Once the lexan was attached, I mounted the ESC to the lexan with double sided tape.

All I need now is a set of tires and Deans plugs on my ESC and battery, which will be done tomorrow at work.

Here are the pictures:









Let me know what you think!
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Old 11-08-2008, 08:08 PM   #5
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Very Nice. Racing or just bashing?
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Old 11-09-2008, 09:21 AM   #6
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looks good, let see it go
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Old 11-09-2008, 11:34 AM   #7
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pretty neat.. i like the shock tower turned in to a battery strap.
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Old 11-09-2008, 06:04 PM   #8
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Quote:
Originally Posted by jamminnay View Post
pretty neat.. i like the shock tower turned in to a battery strap.
I just realized that, LOL!
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