Capo 1582-2 Tatra T815-7 8x8 and Cross MC8 Man Kat 1 8x8

[Prop Shaft]

This will be an ongoing journal of these 2 models I bought recently. I will try and keep things current as I have some rather ambitious plans for both. For starters, size comparison between the capo and cross 8x8's. And a shot of the scale motor build of the capo.
http://tapatalk.imageshack.com/v2/14/08/22/530bef7ee0582d392e8072810cb91ec0.jpg
http://tapatalk.imageshack.com/v2/14/08/22/7816a431e4bfc06e1a0b4b30a366b9d6.jpg
http://tapatalk.imageshack.com/v2/14/08/22/9f0ab18f9fc5ea598d06c765731571fc.jpg
http://tapatalk.imageshack.com/v2/14/08/22/076feff95a34afc1c419170e964377a6.jpg
http://tapatalk.imageshack.com/v2/14/08/22/afd2a17a5af1d1431d3f0da4dc762c6c.jpg
http://tapatalk.imageshack.com/v2/14/08/22/11d0621cba7c6319067c2ec8b4a0c8fe.jpg

[Prop Shaft]

Tore into the drive train a little bit and boy im glad i did. Not only was nothing greased, but most of the screws i have taken out were loose. And a couple were backed out completely

Started swapping out socket head screws for scale hardware
http://tapatalk.imageshack.com/v2/14/08/23/6824459d22617fe22b05ea976e63ab15.jpg
http://tapatalk.imageshack.com/v2/14/08/23/d3e6bd2a66cef38e2047d2a13b4a9306.jpg
An interior is in the future for sure
http://tapatalk.imageshack.com/v2/14/08/23/2fb11095ed1d78c27111face9147b4bf.jpg
Heres something a little unnerving. The only thing holding the cab onto the chassis is 4- m2x5 screws.
http://tapatalk.imageshack.com/v2/14/08/23/da9fd80d6de8370feecc9221cfecefb0.jpg
Lots of room in the back of the cab for electronics
http://tapatalk.imageshack.com/v2/14/08/23/b5c751e0ad8b396983a1d5a6821217fd.jpg
Another area of concern. The cab mounts to the front bumper/skid. The bumper/skid mounts to the chassis with yup... 4 m2x5 screws. They seem to have some play in them. I will be putting longer screws in at the bare minimum. Hopefully they wont need to be drilled and tapped with a bigger size down the road
http://tapatalk.imageshack.com/v2/14/08/23/aa1331dea445b639a4bf7479e61cfc28.jpg
The entire bed is only held on with 4 m3 screws as well. Not much i can do here as the hole aren't tapped very deep. i just hope they hold up.
http://tapatalk.imageshack.com/v2/14/08/23/e5f5e91a50c3d1c84a548fb91ec59d68.jpg
With the bed off
http://tapatalk.imageshack.com/v2/14/08/23/47328cff051f7407c7f84ec34c2869d7.jpg
Another thing im not fond of, under compression and full lock the front wheels are going to be rubbing the shocks pretty bad. Uncompressed
http://tapatalk.imageshack.com/v2/14/08/23/636bc462d59da5af7b79b530e0eda456.jpg
Compressed
http://tapatalk.imageshack.com/v2/14/08/23/3818408c7692b6ee1490540839275b6e.jpg
More to follow soon.

[Prop Shaft]

Underside
http://tapatalk.imageshack.com/v2/14/08/23/09c80b8576205ee55d165f6a979c5d1d.jpg
Remove 8 screws, the shocks, and the 4 diff lock arms to separate the driveline from chassis
http://tapatalk.imageshack.com/v2/14/08/23/c64821e334797addbff00504284b590f.jpg
http://tapatalk.imageshack.com/v2/14/08/23/4b2cd236fecb5a00c3d96748ae6fdf87.jpg
M2.5 hex head to remove the hub covers
http://tapatalk.imageshack.com/v2/14/08/23/aba8af92d9a8517d8fcea8da05b82996.jpg
This allows access to the standard m4 size nut that holds the wheel on
I also noticed that on the rear wheels the nut bottoms out on the shaft before the rim. Leaving the wheel a little loose. I will have to shim it.
http://tapatalk.imageshack.com/v2/14/08/23/54cb9115d99e49cc99bb5422331334be.jpg
Back side of a wheel. What a nightmare it would be if you had to remove 10 m2 nuts to get each wheel off!
http://tapatalk.imageshack.com/v2/14/08/23/77b149594b5445129b420b673fc53e5f.jpg

[Prop Shaft]

One of the front wheels was really wobbly. Found out why the screws were loose and one backed out all together
http://tapatalk.imageshack.com/v2/14/08/23/765339d80300e2df58255356f9ed7fbb.jpg
No grease anywhere
http://tapatalk.imageshack.com/v2/14/08/23/27423c5afd036faff23c40d6033a23fc.jpg

[Prop Shaft]

Diff unlocked
http://tapatalk.imageshack.com/v2/14/08/23/c166b1efe7934108bfaa4105db904656.jpg
Diff locked.
http://tapatalk.imageshack.com/v2/14/08/23/3ce3ef681083608131c8b56affd9275b.jpg
This diff scares me. For how heavy this truck is theres such a tiny bit of mesh where these planetary gears touch... I cant see this being very strong

This was fun to put back together. I had to grease the shift fork, but not so much that grease squeezed into the hole that needed to be thread locked. Then i had to hold the parts inside the tube lined up to the hole and try to thread the link mount into the fork, while being careful not to loose the bushing ...
http://tapatalk.imageshack.com/v2/14/08/23/4a26ca69dec64e0941e892b4f77ca62e.jpg
A break down of a front half axle
http://tapatalk.imageshack.com/v2/14/08/23/c4e786c9a6dc3f429721c1412ef06ecb.jpg
And one reassembled, thread locked and scalified
http://tapatalk.imageshack.com/v2/14/08/23/d16b1165d82a95868da8ef497de177b5.jpg
I managed to tear a boot, thankfully there were extras included
http://tapatalk.imageshack.com/v2/14/08/23/ab651ff249d45bd67de0c98a54df9d72.jpg
One axle greased and ready to go, now only 3 more to go.....
http://tapatalk.imageshack.com/v2/14/08/23/126efb41fe80d612d799544bf9acee57.jpg
Reassembled and scale hardware added... There are so many screws on this thing its crazy... I love it! Lol
http://tapatalk.imageshack.com/v2/14/08/23/37277b701ea13e50d9dda339e8de0a7c.jpg
http://tapatalk.imageshack.com/v2/14/08/23/f93c9d9c294da875ee813a96845d6841.jpg
http://tapatalk.imageshack.com/v2/14/08/23/5810b5d2dca3fcd9cbcc9a3803223d97.jpg
http://tapatalk.imageshack.com/v2/14/08/23/385862e08fb983d30eeca941590691ea.jpg

[Prop Shaft]

so theres 4-m3 tapped holes in the bottom of each axle case. Im not sure why they are there, other then maybe for adjusting the the ride height lower, or maybe skid plates...
http://tapatalk.imageshack.com/v2/14/08/27/f8f31176acce57f0c4278e0187dc1b1a.jpg
I filled them with some screws to keep dirt out
http://tapatalk.imageshack.com/v2/14/08/27/7e8fc269f92c4d674f21d0d8060d803c.jpg
I changed over to tamiya ceramic grease. I was worried about the sticky black grease not getting to the areas where the planetary's shafts etc. spin and not being lubed. The tamiya grease is alot lighter and flows a bit into all areas from what ive seen.
http://tapatalk.imageshack.com/v2/14/08/27/142c9a11c47839880dedd36db7c2d209.jpg
Another area where theres a big issue is in the front steering geometry. Everything works dandy with the steering until you add compression on the front axle. At which point the steering arms hit on the top of the axle. I played around with some offset rod ends I had laying around, and it seems they will suffice to remedy the problem. All i had was short ones, I have some longer ones ordered ill replace them when they come in. Too bad they're plastic.... I cant find any metal ones. This is the steering angle at full lock.
http://tapatalk.imageshack.com/v2/14/08/27/54e9e0ef32e3ce5d25e17ae886ad802f.jpg
This is as far as it turns before it binds under full compression
http://tapatalk.imageshack.com/v2/14/08/27/6477b034a1c94e5086c75054d5c7f22d.jpg
Cracked open the 2 speed transfer case
http://tapatalk.imageshack.com/v2/14/08/27/ba26caf356cd167cb21a50dcbb4dfe47.jpg
Gave it a good dose of grease
http://tapatalk.imageshack.com/v2/14/08/27/b60f3a4d50b8e5b0063d282486e2792a.jpg
When i cracked open the 3rd axle housing. I noticed one of the bearings had fallen out of it seat. Theres nothing to hold it in place.
http://tapatalk.imageshack.com/v2/14/08/28/b8d745a6b266db2955d4c1f6d4a3c6b2.jpg
Looking closely at it, the bearing is actually 2 bearings pressed together to make one. Kind of odd.
http://tapatalk.imageshack.com/v2/14/08/27/15405446f92b3935143235056e49da30.jpg
I shimmed it with some washers to keep it seated.
http://tapatalk.imageshack.com/v2/14/08/27/3234118fc628521ed077b1d782354977.jpg
This is where it sits at now. Its proving to take quite alot of time to swap out the many many screws.
http://tapatalk.imageshack.com/v2/14/08/27/8367affc93d001c257b7335ffe902e76.jpg

[Prop Shaft]

Started swapping out the fender bolts, i may or may not keep the washers. Im undecided so far.
http://tapatalk.imageshack.com/v2/14/08/30/ce7ecdfd00d3d99ea061eb11736b62fc.jpg
Im having a hard time deciding on paint color... Leaning towards nato green...
Im definitely open to suggestions...
http://tapatalk.imageshack.com/v2/14/08/30/52bfa3c7e1f28185881cec42a7ed735a.jpg
The rear axles halves are pretty much identical for all 4. There are m3 holes on the sides that don't have the coil overs. I figured id fill them with some grub screws to keep the dirt out.
http://tapatalk.imageshack.com/v2/14/08/30/e2737f93e780dd38e0528921317b5f56.jpg
http://tapatalk.imageshack.com/v2/14/08/30/f0098a73b1dfe46c753ab17d73797f1b.jpg
Fuel tank removed. I want to fab up some sort of skid plate for it so i dont end up tearing it off.
http://tapatalk.imageshack.com/v2/14/08/30/741e23827ef458946f7658ae4d7b6d5f.jpg
Changed the m2 screws that hold the front bumper on. I put longer ones in as this is a critical area as it holds the entire cab on!
http://tapatalk.imageshack.com/v2/14/08/30/5f89f1562e3c45fd931be05973900db0.jpg
Mounted up with new screws
http://tapatalk.imageshack.com/v2/14/08/30/6a7b0db14d84f623cfaa4525a2809aa1.jpg

[Prop Shaft]

2-m2.5 screws fastening each cab hinge to the bumper. With only about 3 to 4 mm of thread actually holding the hinges on, i was concerned about them being strong enough. So i tapped them all the way through and used longer scale hardware.
http://tapatalk.imageshack.com/v2/14/08/30/625fd4ba0901cc53b0ce54441e96e642.jpg
This is what it looked like from the front prior to tapping
http://tapatalk.imageshack.com/v2/14/08/30/025daa86d9968891de3bfec18d52b634.jpg
New screws bolting on the hinges
http://tapatalk.imageshack.com/v2/14/08/30/ae6ae8477b8213cb57fcbf4526a0a76e.jpg
From the front
http://tapatalk.imageshack.com/v2/14/08/30/d1f72a65abe3fca4d889db6d4174b939.jpg
After scale hardware added to the grill
http://tapatalk.imageshack.com/v2/14/08/30/66d723b31f0de0ab7599298f039065d7.jpg
Started mocking up a fix for the front wheel scrub issue with the coil over
http://tapatalk.imageshack.com/v2/14/08/30/48ae34144884e7f989e0e1d3aa797bbc.jpg
http://tapatalk.imageshack.com/v2/14/08/30/9b0f7e021bfbe54570144a638aaa8ac2.jpg
Offset link ends added. This stops them from hitting the axle under compression, i just wish i could find some metal ones.
http://tapatalk.imageshack.com/v2/14/08/30/b865351e28ffc6ebbd47d2d7ed2bf537.jpg
Full lock and compression, and no binding! Tomorrow I'll replace the styrene with aluminum and make them look presentable.
http://tapatalk.imageshack.com/v2/14/08/30/86ab3c5228a7751a0936ae6702c3be9c.jpg

[kaptain Jack]

Wow,for the amount of money they charge,you would expect better job.

[Prop Shaft]

Wow,for the amount of money they charge,you would expect better job.

Well it cost a lot of money to manufacture something like this. The machine work is just phenomenal on this rig. I imagine they lifted prints off the full scale counterpart as a starting point in designing this truck. In which case there is always going to be issues when scaling something down. For instance, the 1 to 1 Tatra uses air bag springs positioned on top of the axles out of the way of things. Not such an easy thing to scale down. These don't need the distance of a coil over to work. Having to use coil overs means Capo had to decide to either mount them on top or on the sides of the axles. Personally I'm glad they chose the sides, as it keeps the springs lower on the chassis and not visible, this would take away from the scale appearance somewhat, and possibly hinder bed heights. I can live with the springs being seen over the #1 axle though. Sacrificing turning radius in favor of hidden springs is not something I want in my truck. I'm ok with having to iron out a few wrinkles in it's design. Going through a rig bolt by bolt and fixing/modding what needs attention is half the fun of this hobby.

[topher1266]

WOW! Great machine,but a lot of tinkering to get it perfect. Where can I get those scale screws? I kind of stepped aside from my 6x6 build but will get back at it now.

[Prop Shaft]

WOW! Great machine,but a lot of tinkering to get it perfect. Where can I get those scale screws? I kind of stepped aside from my 6x6 build but will get back at it now.

Thanks! You can find the screws at RC4WD and Locked Up Rc. Personally I like the locked up screws better. They seem to have crisper edges all the way around and are true round stock. Unlike the m3 versions rc4wd carries, they are kind of triangular. I tend to buy from both companies tho as not one company provides all sizes/colors.

[Cooper]

Yes even the most expensive models require a bit of finesse to get right. It's not needed for most that purchase these higher end models but it's nice to see someone going through and making it right. I have always thought of these models as high end and it's just fitting to finish them off proper :). Nice to see you keeping the intended precision work matched to the quality of model. Keep the post coming. I've always wanted one of these but I can't justify the price for my use, at least not yet :) so it's nice to see your posts. When she is complete and proper you got to put her in the ruff and video!!

[Prop Shaft]

Yes even the most expensive models require a bit of finesse to get right. It's not needed for most that purchase these higher end models but it's nice to see someone going through and making it right. I have always thought of these models as high end and it's just fitting to finish them off proper :). Nice to see you keeping the intended precision work matched to the quality of model. Keep the post coming. I've always wanted one of these but I can't justify the price for my use, at least not yet :) so it's nice to see your posts. When she is complete and proper you got to put her in the ruff and video!!

Thanks, its a fun rig. I cant wait to have it out on the trails/rocks. There will definitely be many pics/videos when the time comes!

[Prop Shaft]

Well after testing a few different paint colors I had laying around, Ive decided to try and match the darker green of Capo's anodizing. Ive ordered some darker greens in hopes of getting a closer match. Im thinking black green might be the ticket. In the pic is nato green on the left, olive green on right, and the factory anodizing color on the bottom.
http://tapatalk.imageshack.com/v2/14/08/31/2bb56f5228acf4e00a47a54cd1017722.jpg

[Prop Shaft]

Finished my modifications to the #1 axle shock relocation. 1/8" aluminum plate mounted to axle halves.
http://tapatalk.imageshack.com/v2/14/08/31/8b081000b5a948785299f8f74b4069af.jpg
Same size plate used to relocate the upper shock mount
http://tapatalk.imageshack.com/v2/14/08/31/0b1c17f2d9a81a6877280e43ab764d0a.jpg
Had to drill and tap some new m3 holes
http://tapatalk.imageshack.com/v2/14/08/31/57bffe3b52e5c4573b0e05be4bb4eed1.jpg
Sprayed some olive green onto the plates
http://tapatalk.imageshack.com/v2/14/08/31/90b168a12a310e9131ad1737ed09995e.jpg
Everything jives now, no binding and max steering angle
http://tapatalk.imageshack.com/v2/14/08/31/72d2e65c4317cba953a823701127161c.jpg
Full lock, uncompressed
http://tapatalk.imageshack.com/v2/14/08/31/2a247b6973e3f7cfa637b7e268498f6a.jpg
Full lock, compressed
http://tapatalk.imageshack.com/v2/14/08/31/c2e70307f88f4f006a221c704f7beb4b.jpg
http://tapatalk.imageshack.com/v2/14/08/31/8c94e5f922ce2ae32d33a10c609fdebd.jpg

[pigeonfarmboy]

Looks great. Definitely a shame you had to do all this work. If they leave the drive line parts that unfinished I wonder why they even take the time to provide them assembled. The scale hardware really looks awesome as well :drool:

[tc1cat]

Great thread on the 'rebuild' :eek: Glad that I didn't splurge and buy the Capo. The Cross-RC is enough of a challenge to keep running. I have broken 2 steering knuckles already with no real off-roading. 1 broke during assembly and the other broke at Indy during its maiden run. I had ordered more steering knuckles after reading a few build reports on the 8X8. Just glad that I had an unassembled 6X6 handy to get parts from. Noticed that they changed the type of plastic for the axles in the 6X6. Feels more like an engineered plastic rather than ABS in the 8X8.

Will keep watch to see what you say about the Cross-RC 8X8.

[Prop Shaft]

Looks great. Definitely a shame you had to do all this work. If they leave the drive line parts that unfinished I wonder why they even take the time to provide them assembled. The scale hardware really looks awesome as well :drool:

Thanks. I cant wait to get some paint laid down over the chassis so it looks like a 1:1 military paint job! The driveline does concern me some. my biggest fear is the little brass planetary gears not holding up. They are going to need to handle some serious torque at times...

Great thread on the 'rebuild' :eek: Glad that I didn't splurge and buy the Capo. The Cross-RC is enough of a challenge to keep running. I have broken 2 steering knuckles already with no real off-roading. 1 broke during assembly and the other broke at Indy during its maiden run. I had ordered more steering knuckles after reading a few build reports on the 8X8. Just glad that I had an unassembled 6X6 handy to get parts from. Noticed that they changed the type of plastic for the axles in the 6X6. Feels more like an engineered plastic rather than ABS in the 8X8.

Will keep watch to see what you say about the Cross-RC 8X8.

They need to do something with their axles. The material mine are made out of is a joke. surprisingly its the rear axles that are giving me the hard time not the front. But out of only 2 short runs, I've had to superglue the shattered cases together, and now the 3rd axles ring and pinion mesh is jumping teeth due to the horrible mesh. I ordered some Yota 2 axles to swap out. I just gota figure out how I'm going to mount them. That and find some time to do it.

[Prop Shaft]

Been laying down some paint. Have decided on tamiya black green.
http://tapatalk.imageshack.com/v2/14/09/08/52a379fb020b2af44107f3ebafbec665.jpg
http://tapatalk.imageshack.com/v2/14/09/08/dcd11f068cb5f327ffcdc5ad9cb13268.jpg
http://tapatalk.imageshack.com/v2/14/09/08/25b85b49950d578a6024b2d332298c19.jpg
http://tapatalk.imageshack.com/v2/14/09/08/d5f5f4d934aa0d9ec4830b67f7e4d4f4.jpg

[Virginian]

Wow! What a great thread. I'm getting ready to order a Cross MC8 and saw this thread. Just a great job of explaining and documentation to bring your rig up to your standards.

Thanks for posting.

Eric

[Prop Shaft]

Wow! What a great thread. I'm getting ready to order a Cross MC8 and saw this thread. Just a great job of explaining and documentation to bring your rig up to your standards.

Thanks for posting.

Eric

Glad you are enjoying the thread. I have been seriously lacking in the time dept. lately but I'm getting back into it now.

I have decided to move the Cross 8x8 to it's own thread. http://www.rctruckandconstruction.com/showthread.php?t=10337

[thestewster]

This is awesome!

Please could you tell me where I can get one?

Regards,

Stew.

[thestewster]

Got one! :)

[Rakthi]

So what did you get? The Capo or the Cross MC8?

[powerstroke_1999]

Dj medic on rc adventures on YouTube did a full build on one of these this is one of the most detailed truck kits I have seen who ever did the design from the real thing is good.The one he built the instructions came on a flash drive step by step I'd like to buy one but $3k is a lot lol nothing scaled is cheap nice write up cool vehicle.

[thestewster]

I got the Amewi. It's not as detailed as the Capo but I'd rather add scratch built details myself. It's all alloy and a fraction of the price. I'm delighted with it!

[Prop Shaft]

I got the Amewi. It's not as detailed as the Capo but I'd rather add scratch built details myself. It's all alloy and a fraction of the price. I'm delighted with it!

Ive never even heard of it. Is that the Integy thing? Can you post a link?

[thestewster]

www.greensmodels.co.uk

Click on Kits, then 1/10th Scale.

[chris1210]

Is there a video of it moving? Love the suspension

[Prop Shaft]

Theres lots online if you search. I havent finished mine yet, been slowly building an interior. Should have an update soon.

[totof1965]

In case of, here's my first test with my capo

https://youtu.be/F3xGuSRPC00

[Prop Shaft]

Cool. Ive got a V3 sitting on my shelf also. Just no time to work on it or the V2. Looks like they've lowered the gear ratio quite abit on the new one. A wise decision imo.

[totof1965]

right now I got a brushed 540 45T in it, speed is ok on 2s but I need something with more power.
just ordered some 550 brushed to test

something around 1000 kv equivalent is good for me in speed with the new ratio on 2s, don't know the ratio on the v1 and 2

[Prop Shaft]

Will be interesting to see how the 550 works. Im toying with the idea of doing a 3:1 planetary reduction on each hub. But that will be costly, and as I said... Finding the time...

[totof1965]

yea time is the problem, work hard, got money to buy toys but no time to play, lol

i've tested the tatra in hard condition and the diffs seems to be ok, but i agree they look fragile

[Prop Shaft]

The Capo distributer I buy from has regular meetings with Capo and regularly asks me for suggestions. One of the things I told him when discussing the V3 was that Id like to see planetary hubs for this. It would take so much stress off the diffs. Which has to be the weakest point in the drive train, given the tiny bit of mesh on those tiny brass gears. I guess they only half heard me, as the planetary reduction only made it into the transmission lol. I think this thing would be the ultimate model if they had done that. Super low range ftw!

[totof1965]

I agree with that, I hope these brass gear will be ok, in your opinion will they last longer in open or closed position ?
I try to be in open position most of the time and lock the diff only when i need

[Prop Shaft]

Id be more worried about them breaking a tooth as opposed to wearing out. So ill be doing like you. Keeping them open untill needed. I plan to run each axle on a sepperate channel as well. Thats not really an option on the V2 though. Its all or nothing.

[totof1965]

I too use 4 channels for the diffs, then use mix to operate then as I want, right now got a 3 pos switch for :
1-all free
2-rear locked, front free
3-all locked

this setup seem to be good for now, gonna test different combinations

[Northern Farmer]

Any updates on the Tatra ?

[Prop Shaft]

Sadly no. I ran it once and lost drive on the #1 axle while trying to reverse up a steep hill, and its been sitting on the shelf ever since. I just cant seem to find the time to work on tiny trucks lately. Hopefully soon.

[SoCalSTEVE]

I have the same Tatra 8x8 and the Tscale 6x6 which has the same drivetrain as the Capo.

[Panther F]

That's a shame to have such a beast side-lined due to a repair.

Hope it's up an running soon because I know all about getting back to the bench to work on toys.

[Tanque]

Any word on this Capo Tatra? Was it ever repaired? I've not yet built mine and was curious if anyone came up with a fix for the weak differential and or/ the part that resulted in the breakdown??

Jerry

[Tanque]

Any word on this Capo Tatra? Was it ever repaired? I've not yet built mine and was curious if anyone came up with a fix for the weak differential and or/ the part that resulted in the breakdown??

Jerry

Well it became a moot point for me as I came across a chap who really, really wanted the kit so I sold it to him last year. Haven't heard anything since..

Jerry