Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps91c23f45.jpg

Got some more parts, the hydraulic pump, valves, and fittings from premacon. I usually don't get bothered with small imperfections but the valve block being in excess of $400 I would expect something better. The aluminum parts that you attach the servo arm to, it looks like they installed four of them and then removed them with a blunt screwdriver. On the undersides of four, they are bent, nicked just torn up somehow. And one has plane holes in it. They were not taped like the other ones. The bottom of the block has some industrial glue or goo stuck to it. I know that these are probably minor imperfections but, damm for that kind of bean I expect better. All but one valve turns well, one returns to its initial position a bit. I suspect whatever seal is in there may not be seated or bent some how. I was planning on dissecting it anyway to see how it works. And in my order I ordered all 4mm fittings but recieved the two 1/8zoll fittings for 6mm. ??? I did read somewhere that they were good and take care of ya, if you need something email them and tell them what you are planning and they will tell you what you need. I did do that several months ago and my response was m5 fittings with 4mm tube. After I wrote a detailed plan of how many cylinders, functions, ect I was planning to find out how many fittings I would need. As the valve block takes several and wasn't sure what all fit with what. Oh well alls good, as I got what I got and placed another order for the 4mm fittings. I guess I was just lacking on product verses high price. But from what I read their product do do its job. Just thought I would share, all is good and now I can start to give the d11 a heartbeat!!

Re: First build ,cat D11
 

5 valves in a dozer? :confused:

That valve is steel, it's the same design as the aluminum bodied ones I get, though I don't know if it's the same guy making them in steel. Apparently only the steel valves can be had through Premacon...

I've never had a valve show up in the condition you described, Fumotec uses the same hyds (Jung pump & Meinhart aluminum valves) as Premacon... they could be really busy & getting sloppy, I'd be livid as I don't have 2mm tap for those holes not done... I would send a mail to tell them so. ;)

The two 6mm fittings (4mm id hose) screw into output side of the pump & into input side of valve. Do you have two more larger fittings for a 6mm id hose to connect tank to pump? (I think that's the size, it's definitely larger than the output)

Are those the servos Premacon sent with the order or you picked on your own?

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps92e799d2.jpg
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The last pic is the left one is taped, right one (in best shape of all) is not taped. It's really no big deal, I was just disappointed in appearance for how much I paid. I decided to go with these for reasons of steel, and from others they make the best stuff. As long as they work I'll be happy. It was one of those things I thought I would share, maybe I'm being too critical??

The servos were not from them, cheep hobbyking from home pile of stuff, just was checking size. I thought I already have some micro servos.

Oh and yea five valve dozer. Independent blade lift valves, allowing left/right tilt. (2) Dump/carry tilt for the blade valve (3). Ripper raise (4), ripper tilt (5). Like I have said before, that should make a first build radio programming easy!! Lol!! Planning on using a 9ch radio.

And yes I had planned on larger diameter for tank to pump and larger size back to tank. Just wasn't using planning on using that hose and their fittings.

Re: First build ,cat D11
 

Your blade lateral tilt comes from the smaller cyls on the ends of the blade. Pair your lift cyls with one valve. ;)

Which radio you intending to use?

Using F mode, F1 could have your tilt cyls (side of blade cyls) working opposite each other in one mix for maxium lateral tilt, then in F2 they could be cycling same direction to carry or dump.

I've never tried such programming myself, but I think it should be possible.

I see that Premacon is using a much smaller servo with these steel valves, that must be the advantage to steel - a rotary valve turns easier with high pressure. :thinking:

They must have held that piece with pliers while they tapped it?

Re: First build ,cat D11
 

Didn't know that about the lateral tilt cylinders. Thank you. I will still need the fifth valve for the independent tilt cylinders,? Right? If I'm following you. The mixing shouldn't be a problem as I'm fairly familiar with setting up mixing. Not sure about assigning a slave to all functions for the pump to only run when needed. But I'm sure I'll figure it out when time comes. Like when it's all together and then you can't figure something out so you tear it apart to put it back together different just to realize it was a simple switch or program that would have solved it!! Keep ya familiar with how to put something together even though you built it! Lol!! Murphy's law or just looking at a T-bone steak by sticking you head up the bulls a$$ !! Lol. I'm using a turnigy tx9 radio, have spectrum 6i also but I'm pretty impressed with the tx9 (for the price)

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps6feace70.jpg

Got my knife business under way.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps1a90448e.jpg
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Working on the ripper. Once this is done I'll have to finish up the hydraulic cylinders for it and then I'll be able to bring her alive.

Re: First build ,cat D11
 

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I have to hone and polish tubes and shafts. Then I'm going to solder up the fittings to prevent as many leaks as possible. After mocking up several times. :)

Re: First build ,cat D11
 

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Made some sort mock transmission plate for the back. It also is the other side of the pin holes for the tilt cylinders. The outer pin holes are part of the frame so whatever forces the ripper has I'm sure the tracks will just spin and not worry about bending anything. I tried to make this more functional and durable than other aspects. There will be a row of mock bolts to be added.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...psae0a21a8.jpg

Under the front hood, a fan that will have some of the sabertooth esc directly bolted to it. That way the esc will have plenty of cooling (I think). Then the motors/ batteries / electronics.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps4a402a3b.jpg

Pump and motor will be mounted under cooling fan. Trying to keep weight low and somewhat centered.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps4352065d.jpg

5 valve assembly mounted towards back under superstructure.

Re: First build ,cat D11
 

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I will be building somewhat of a housing for the batteries so they will be velcrowed down and stay put. These are some of the lipos I have, they are dinogies from mark f. I never put a plug in for anyone but of all the lipos I've run these are stateside shipped, guaranteed, and preform outstanding. Had these packs for a year and half, I've pulled over 400amps over 1400 watts and they have minimal ripple, voltage drop while charging them at 20 amps all the time. If anyone out there is in need of racing high demand lipos these are some of the best if not best, better than hyperion, Grimm, ect. Just trying to share some of my good experiences.

Re: First build ,cat D11
 

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Relief valve somewhere in here, easy access.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps018901b0.jpg

And as I have to retract my words, on building a reserve hydraulic tank. I think I will build a tank that will sit in this location. Weight low and will be able to have high volume tank to keep oil healthier and cooler. I know its a dozer and not pushing oil like an excavator but the overkill isn't on the bad side. The bottle of dykem is 4oz. So whatever I build I would be able to build something that could be as big as 12 oz or more.

Re: First build ,cat D11
 

http://i1357.photobucket.com/albums/...ps15dc39bd.jpg

Just the latest pic. I have yet to get sound. I'm thinking of the smx from servonaut. I think that's the one, the one without the turbo sound. What do you think? I'm thinking the turbo sound for the dozer will be too much. I think that is better suited for the trucks.

Re: First build ,cat D11
 

I HATE the turbo whistle... makes me want to take a hammer to what ever is using it!!! Ppl who don't how to run their model show off the turbo sound effect for some silly distraction, thinking it's kool.

Start putting goodies inside & the space disappears quick, eh?! :D

Re: First build ,cat D11
 

Yes it does get crowded quick. I spent about two day trying to figure out how things would fit. I'm waiting on some 90 degree elbows, hopefully they will be here this coming week. Need them for the pump. Having it near the bottom there isn't much room and a straight fitting just will kink once it's gets warm I do believe. The whole cabin area is empty so I could use that. I'm trying to avoid that because it seems like that may turn into an oven. :). Making all the little brackets and things to hold everything in place is going to be fun. And I just know once I get all those things fitted, welded, bolted or whatever I'll see a better mounting way!! It always happens. Lol!!!!

Re: First build ,cat D11
 

Yes, the Servonaut SMX is the one with the turbocharger sound built in. Each to his own. I personally like the way it sounds. It is adjustable, so you can turn it up, for guys like Joe, who don't like it. :)

The D11 is looking great and you are making very nice progress!

Re: First build ,cat D11
 

D11's that I have been around actually have a fairly muffled engine sound. The clunk clunk clunk while pushing and clanking tracks when backing up are very loud .

Re: First build ,cat D11
 

Yes that's what I'm thinking. I would love it if it had some squeaks to it. But tracks are aluminum and only materials rubbing are aluminum and brass. Most likely no squeaks. In time the clanking will get louder as tracks get more loose and worn. The sound speaker is going to be housed inside the cab, I may add some absorbent material in that area so it doesn't sound like a tin can. :). Not the best for acoustics but it's on the minor side of things to worry about.

Re: First build ,cat D11
 

looks good Cooper :eek: wana trade PRV's for the weekend ? The 1 you have will fit better in my compactor and not enough time to get 1 in from Premacon :( .

On the turbo whistle , it's not right . I have 75% hearing lose in both ears , so I can barely hear it in the real werld . Wen I can hear it on a model loud and clear , somethin not right . The only time I ever heard that whistle , is when I ran the TD12 and TD8E with a straight pipe :eek:

Re: First build ,cat D11
 

Depending how good your hearing is, I suppose you might not be able to hear some turbochargers, but others can be heard over everything else. This is a D10R, but the turbochargers are definitely audible.

https://www.youtube.com/watch?v=XVQWchXTcy8

Re: First build ,cat D11
 

Awesome build for sure, what more can I say? As for the sounds why don't Servonaut offer a screaming Detroit?

Re: First build ,cat D11
 

I should have said 11N's that I have been around. They have a very distinct sound. I can still hear them in my mind because they used several of them less than a a half mile from my house to stripmine one of my friends property about 22yrs ago.

This video has that sound I was describing. No whistle, only raw power fan noise track clunks and the occasional squeak of the blade twisting
https://www.youtube.com/watch?v=TDDFkHhWeGM

The coal company also was running some old worn out D10N's with the V12
They are louder than the 11's

Are you going to try to make it down to York,PA next weekend to display your dozer?

Re: First build ,cat D11
 

I really want to get down to York. I was just talking to a friend in Harrisburg, if I can make it I'll be down Saturday. He and I are in the same boat, don't know till Friday and that's not sure. Weather has just been terrible for me and work has been pilling up. Hopefully I can make time as it's not that far for me to go for a couple hours. If I do head down there I'll bring what I got so far. Slapped together it looks pretty good, no paint or finals yet but would make a good looker for the show.

Re: First build ,cat D11
 

I should see if I could hang a couple pieces of heavy steel inside somewhere. Any movement would clang them together. I love the clinking of tracks and the squeaks. To me it's what makes a dozer. I use to watch my dad back in the 70's running a d8 all clapped out, loose and loud. :).

Re: First build ,cat D11
 

If I don't get my order this week I can see if I could next day the prv for you. Without the fittings I need it's just sitting. My premacon order has been in limbo for over a week. It's in USA but no movement, must be caught up in customs.

Re: First build ,cat D11
 

thats OK . It took me a couple hrs to figure out how to stuff everything under that hood , not pulling apart till after next weekend :eek: . Then I'll do some digging see what I can find local ;) what size fittings ? I have a few and I'll be ordering more this summer from my supplier .

Re: First build ,cat D11
 

Just weighed everything including batteries. Less paint and oil. But all in all it was 64lbs. So weight when finished will probably be around 70lbs.

Inbuilder, I need three m5 by 4mm hose elbows, two elbows to come off pump, 1/8 fittings or m10?? Not sure what thread size. But one elbow for 6mm and one for 4mm hose. Hopefully I'll have these this week but I'm always finding I need something else!!! I may have to hit you up for something if I don't get it.

Re: First build ,cat D11
 

Or I may make up my own but that is going to be a p.i.t.a. Knowing nice shiney pre made fittings are out there somewhere. :) guess it's going to be a struggle between my ADD impatience and logical reason of waiting. Basically kid vs adult :)

Re: First build ,cat D11
 

I'll have to order the fittings going to the pump , I have 1 6mm elbow and 1 straight . I have a few m5x4mm

Re: First build ,cat D11
 

On these premacon pumps, what is the correct thread size on the suction and pressure side of pump? Is it m10-1.50? I'm at work right now so I don't have pump with me, I know on there website it says 1/8zoll. I'm probably going to make my own elbow from brass and just want to be sure of thread pitch.

Re: First build ,cat D11
 

1/8 british standard straight pipe

Re: First build ,cat D11
 

Thanks for the thread size.

http://i1357.photobucket.com/albums/...psb61bfbc9.jpg
Made a paper template of battery compartment.

Re: First build ,cat D11
 

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Transferred markings to this piece of aluminum I had. Don't know where it came from but it fit the bill

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Milling it to the correct size, I'm making side pockets for it to slide into along side frames. And in the mill it's 1/8" thick plate so some clamps to keep it from vibrating too much to mill. As I don't have a band saw and needed to have square clean edges.

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After cutting out. I made some openings in the front to get some of the air from the fan. I was planning on heating up then bending the front, back and sides. But,,,,, I don't know what kind of aluminum this was but it doesn't want to bend. It broke at every bend. Plate so I guess it was just too thick to bend to 90 degrees. After breaking all the sides I spent a lot of time milling out,,,,,,I used that aluminum weld rod stuff. It works pretty well but doesn't penetrate wort beans. I'm going to at some time in future have it welded on the bottom seams. But for now the torch welding will work fine.

Re: First build ,cat D11
 

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In the first couple picks you can see the slots it slides into. It's a bit of struggle to get it in but once together with the front sides on its very secure. And it actually opens up a lot of room. I have enough room to stack two of those batteries for some longer run times. And I don't think I'll have to secure batteries as they fit snug without being able to move much. I use to having to go to great efforts to have everything secured. I think this is going to stay right side up all the time. :)

Re: First build ,cat D11
 

Cooper,
Which brand of rods did you use?? I worked with some alumiweld this weekend and same thing... it is crap for a good weld. I am waiting for some muggyweld Super 5 to show up tomorrow to try and test it out. They say the powder flux does the trick that it works real well......we will just see.

Re: First build ,cat D11
 

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I'm sure this stuff isn't made by Hobart, I looked for a manufactuer on the back but no luck just a brand name. I have some flux and solder for aluminum but I don't know where I put it!!! I used it to solder lipo base tabs as they are aluminum (as people will say they are copper and you can't solder aluminum, but they are aluminum base tabs ). Yes for what I've gotten into the flux is the main part, has to break the oxide on aluminum. Even just milled will quickly develope an oxide covering. That's why they say to use stainless steel wire brush on aluminum during heating when brazing, soldering. Let me know what the stuff you get works like as I just don't have enough work to warrent a purchase of tig welder. But am trying very hard to justify a purchase of one. :).

Re: First build ,cat D11
 

Use some acetone to clean the aluminum before welding it helps clean the oxidation off. Ed