Re: D8R +463 in 1/5,6
 

Hello Dan this is only a suggestion but why don't you use a small air pump and a solenoid to work your ripper? Ed

Re: D8R +463 in 1/5,6
 

Hi Ed, thanks but I don't have any more channels on RC left, the seller talked me into buying 9 ch instead of 7 ch, and they are used so I will have to use some finger force to change position on ripper.

To something complete different, you may have read about coming model mentioned above (Thanks Reg you gave me some new inspiration), today when buying some helicoil I strolled around in shop and found:

http://i1014.photobucket.com/albums/...ps4d5f5155.jpg

I always looks at shelfs with tires/wheels to see if there is anything that could be useful for coming models, this tire was a new addition to the store, messurments are very close to 315/80R22,5 in 1:5,6 scale:
8" tall, 4" (almost) wheel size and 3,5" wide (a little to wide for us trucks on bogie).
I know this is not a common wheelsize but if it is this or having to get custom made tires ($$$$$$$) maybee I can live with that.
Bad side is that wheel is solid :mad: but that can be an advantage when making treads. But as you see, it has a more prototypical look than most other wheels I have seen.
Anyone that has been doing tread cutting in solid wheels??
Pricetag was ok, $15. Wheels will be replaced with prototypical looking ones.

Don't know if I dare to wait and hope finding better ones or make an order for 18 pcs:confused:

At home I couldn't resist to dig into the storage to get my old drawing of a Kenworth tractor. If I build one it would most likely be a Pete 359, have a real one so no problem with getting all needed messurments.

http://i1014.photobucket.com/albums/...ps5dcb1e80.jpg

Any suggestion or comment velcome:)
Dan

Re: D8R +463 in 1/5,6
 

Hey Dan, have you been on the amerityre website, not home, so no link.
They have some nice tire's, I talked with IH builder steve about these a while
Back. Hope to be home in a week.
Cheer's, Neil.

Re: D8R +463 in 1/5,6
 

Awesome! It's funny how we all motivate one another to build more stuff! I've been keeping an eye out for large tires(8-10") as well at a local parts and surplus store and they had some a while back that would have worked for my brain fart of an idea but I didn't buy any and now they don't have them any more:(.

I hope you start this build soon regardless of what brand of truck you make. If it has half of the detail that your dozer has it will be amazing!

Reg

Re: D8R +463 in 1/5,6
 

Yes Reg, know the feeling of not buying when items available. Will order 18 of those this week, 10 needed for tractor but the lowboy needs smaller ones (rest 8 for possible other trailer). Did put the tire in lathe today but wheel/tire assembly was so wobbling so it was not possible to test cut any pattern. Removed wheel, need to make a new holder for tire before testing again.

Truck and trailer will have details to, like to do those and it adds a lot of attention (easier to do in this bigger scale).

Did mill the oval holes in ripper (made of Hardox wear). Got info from my friend having a real one where to position them.

http://i1014.photobucket.com/albums/...ps9fd4d115.jpg

With ripper in lowest position, it will be possible of ripping 22cm/9" of material (I hope so). The weight of this ripper assembly are 22lbs/10kg now. With this position ripper tipp is almost hitting ground when ripper holder is as high it can come.

http://i1014.photobucket.com/albums/...ps9b91a652.jpg

Pin puller got new pins instead of over sized bolts

http://i1014.photobucket.com/albums/...psd3678e7c.jpg

Started up next part today, engine compartment with it´s doors and base for hood. This is supposed to be last parts made :D, after this structure I will concentrate on engine start up and last modification on cylinders/hydraulics.
Of course will door handle work as proto do, have not decided if I should do the safety lockers :rolleyes: (no, they are to small)

http://i1014.photobucket.com/albums/...psfc921797.jpg

Dan

Re: D8R +463 in 1/5,6
 

looks good , Dan . Any issues on milling the hardox ? I was told by the guys I know @ JMH Trailers that it's a little tough on the mill . Are you making a cap for the ripper shank ?

Re: D8R +463 in 1/5,6
 

Wow, you are really in building mood/mode, Dan :D (wish I was, too). Very nice parts!

Stefan

Re: D8R +463 in 1/5,6
 

Thanks Steve, milling in Hardox was no problem, started with some drilled holes. I have also drilled and counter sunk holes in the cutting edges (also made in Hardox) for the blade without any problem. Tools with sharp edges seems to cut nice in this material.
Cap :o, sorry don't know what that is, if it should be there I guess have to make it. Any pics or description?


Thanks Stefan, yes, have been busy making this model finished, spring season coming soon and has some gardening work to do :D
Or maybee focus is slipping more to next model, BUT I will not start that build before this is ready.

Have worked with the engine doors, got them milled to accept hinges.
http://i1014.photobucket.com/albums/...ps2aa4c594.jpg

When open you have axcess to engine and checking oil. Still need the locking part inside door. Door frame should get some stabilazer side ways, doors are quite heavy, 2mm steel plate.

http://i1014.photobucket.com/albums/...psb9a527d5.jpg

More steel plates in rear of engine compartment to be done and finishing the hood next on the list "to do".
Dan

Re: D8R +463 in 1/5,6
 

"CAP" would be the same on a loader bucket . It's hard to see on the D8 you have posted here pushing snow , But it looks like it's there . I'm going to make some for my 990 . I have no way to cast steel like the realy 1's . So , I'll be machining them in 2 halves and weld them together much like Steve did on his dragline for the cable loops .

Re: D8R +463 in 1/5,6
 

CAP- replaceable tooth.

I suppose what Steve is referring to is a wider tooth for your shank to keep the wear off the shank itself while its penetrating the ground.

What you have already looks good for a cap.. can certainly see the parting line of the welded tip from the shank itself. ;)

http://i1014.photobucket.com/albums/...ps9b91a652.jpg

Re: D8R +463 in 1/5,6
 

yes, that´s correct, the tip and cover above are made of 2 identical pieces welded together. The shape of those are removed from shank and parts welded/soldered in place. Missing is the pin normally holding tip in place, that will be drilled and inserted (no function, only visual).
/Dan

Re: D8R +463 in 1/5,6
 

FWIW , I think I was misunderstood . I merely asked if Dan was going to make a "cap" since his level of detail is literally perfect . But , now that I look at it again with my glasses on :o I see :o

OTOH , It looks great Dan . As for the Hardox , I might have not heard the guy right . He's a welder and sounds like he has emphysema . Couple that with someone who has 75% hearing lost :eek:.

Re: D8R +463 in 1/5,6
 

Very little time in workshop right now, but redid the tip so it looks like excangeble parts. Still need some heating to braze it in place (now only hold by 2 small weld spots). The parts was done long ago, didn't have all documentation at that time, maybee do a complete new one later. Only thing bother me now is the material going downwards from middle hole, but that can be milled away. During this build that has been going on for last 10 years (yes slow builder :o but a couple of 1000's hours invested in it) the information I have on the original dozer has grown, so has my self learned skills in all type of machine workshop works also grown. When looking back, if started all over again, I have made it in another way. But that's what hobby is, enhansing your skills while having fun.

http://i1014.photobucket.com/albums/...n/IMG_0300.jpg

Dan

Re: D8R +463 in 1/5,6
 

Wow this looks amazing!! How much does it weigh?

Re: D8R +463 in 1/5,6
 

Hello buzzy, thanks, the machine is around 450lbs (205kg) now, will be another 25- 30lbs when "filled up" with fluids. Yes, the hydaulic system have more than 2 gallon of oil!

The ripper tooth is 4,5lbs (2kg), the big scale adds up a lot of weight.
When starting this build I made some calculations, in my thoughts then was a model weight of 140kg. The "scale" weight was calculated to 216kg so it turns out that I'm hitting the weight almost spot on!:)
Dan

Re: D8R +463 in 1/5,6
 

Ha wow that's going to be an awesome thing to control, I'd love to have something that big to control, and the ripper looks very mean!!
Congrats on the build so far, hope to see lots of running vids of you ripping thing up :D

Re: D8R +463 in 1/5,6
 

looks great Dan, I can see it now :o

Re: D8R +463 in 1/5,6
 

Dan,

It looks great, maybe I missed the thread but, did you make the control valve for the drive motors?

Re: D8R +463 in 1/5,6
 

HI, I think you find answer on page 8 and #152, there´s good pics showing the control valve mounted. No, I did buy them, they are HAWE propotional valve with open centre making only needed oil go thru valve, rest goes around, making less heat I hope. Drive motors gives 90% torque at 0rpm, but with my reduction 1:4 it will smoothen out motors movement.

Dan

Re: D8R +463 in 1/5,6
 

Weekend update:
Finaly got all hydraulics (return lines) inside machine connected together :), still to connect cylinders on ripper and cylinder for blade control sideways.

Here's pic showing connections
http://i1014.photobucket.com/albums/...psddfad6c7.jpg

Have made some handle bars before on cab, needed 2 more on hood. made a small press tool to form end of hand rails like the real ones.
http://i1014.photobucket.com/albums/...ps480ffae5.jpg
http://i1014.photobucket.com/albums/...ps98b775cc.jpg

With bars mounted on hood (and hood mounted on sides)
http://i1014.photobucket.com/albums/...psb1946f38.jpg

Need now a wall between engine room and cab, will try get some help welding on hood, don't dare doing it myself, hood is $$$

Dan

Re: D8R +463 in 1/5,6
 

How to turn a bowl shaped part?
Well, do not have any radie-turning tool for lathe, so had to do as good as possible with normal bits and then making the last steps with a file. Doesn't feels good working with file when lathe is running.
Have seen some solutions on net, anyone having suggestion, all input appriciated, need that if making some wheels for next model.

Aircleaner top bowl
http://i1014.photobucket.com/albums/...ps61ed669d.jpg

Anti skid plate mounted outside cab,
http://i1014.photobucket.com/albums/...psad2d4715.jpg

and got some nice cable for GPS, here just testing how it looks. Cables are those that stores selling phones use for safety (prevent stealing the phone). There's different sizes of cables, this one was the smallest one and has right diameter of the spool. Connection in both ends will be remade.
When building models, you should always keep eyes open, useable parts are everywhere!
http://i1014.photobucket.com/albums/...ps7e878307.jpg

Dan

Re: D8R +463 in 1/5,6
 

Nice job on the pre cleaner Dan. If you had a lot of those to make you could make a wooden pattern and spin thin aluminum over it.

Re: D8R +463 in 1/5,6
 

nice work I can't wait to see this move and hear it run

Re: D8R +463 in 1/5,6
 

Thanks guys, me to waiting to hear it.
But found out that aircleaner was missing something, here the real one
http://i1014.photobucket.com/albums/...ps1c9f0ada.jpg

and model
http://i1014.photobucket.com/albums/...ps49a9f773.jpg

A little hard to see, mesh should should be finer, but this done for durability. Have learned from shows so far that visitors can't read (signs say DO NOT TOUCH) leaning, peeling, and looking with the their fingers:mad::mad:
Here a close up pic, don't know the reason for why some holes missing but that's the way its looks.
http://i1014.photobucket.com/albums/...ps3d58b37c.jpg

Dan

Re: D8R +463 in 1/5,6
 

Nice detailing again, Dan! Really incredible. Don´t want to push you*, but I see the original air cleaner has some kind of flange at the bottom :rolleyes:

Stefan

*) (yes, I do) :p :D

Re: D8R +463 in 1/5,6
 

Ever thought about putting up an electric fence around it?
Lol! Shock the ???? Out of them!
Like the progress!
Cheers, Neil.

Re: D8R +463 in 1/5,6
 

Happy now Stefan? I could see that coming:rolleyes:
http://i1014.photobucket.com/albums/...ps033def6a.jpg

No laser shop open this morning so did it old fasion style with drilling, file and so on:p

Well Neil, sometimes you wounder about how people think :confused:(or maybee do not), have had parents being angry when I tell the kids to not touching/mowing things like the doors. Just waiting for that day when they steal the driver or his dog inside cab. BUT most visitors are realy nice, interested in the build and eager to see all details and how things was designed:)
Dan

Re: D8R +463 in 1/5,6
 

Ha, very quick reaction, Dan :eek:. I´d say that´s 1:0 for you. :D:D

Re: D8R +463 in 1/5,6
 

Looking better all the time Dan. But you are killing me having to wait and see this master piece run.

Re: D8R +463 in 1/5,6
 

Thanks, yes I know it's taking so long time :o:o but who's waiting......
Will try starting/breaking in the Honda engine next weekend , I hope.
But the goal is to have it up and running this summer
Dan

Re: D8R +463 in 1/5,6
 

Did not get it started:mad: will not say anything now until I have done the start.
This weeks evenings (have max 2 hours of time/day) redid the connections between machine and pusharms.
(old photo some years ago when planning how cab should be done)
http://i1014.photobucket.com/albums/...ps079f1742.jpg

Was never happy with the simple solution, did mill new ones from a bar. Amazing how much time it took, did use an old steelplate (have not yet made that cheeseplate Reg used) to mill some parts at rotary table.
http://i1014.photobucket.com/albums/...pscdec9170.jpg

Didn't separate the 2 parts until almost finished, have a swivel bearing inside
http://i1014.photobucket.com/albums/...psadf00fca.jpg

Had to modify the bolts to fit inside swivel and getting as much movent as possible
http://i1014.photobucket.com/albums/...psc8bb9be5.jpg

The new connectors welded to pusharms, looks now like proto
http://i1014.photobucket.com/albums/...ps88a22fc7.jpg

Dan

Re: D8R +463 in 1/5,6
 

Hi Dan

OMG what a Big Build you have worked on for over the Past ten years.

Love you work, can't wait to see I Video of it running.

From Cameron.

Re: D8R +463 in 1/5,6
 

Hey Dan, read thru Jeff's forum, http://www.hydraulicinnovations.com/...read.php?t=449 and get some idea's for your future transport truck & trailer. I can give you idea's for hydrostatic drive. pm me with questions.
More progress on the "Kitty":D:D:D
Cheer's, Neil.

Re: D8R +463 in 1/5,6
 

Neil, thanks for the link! Have not decided what type pf power there will be in the truck, would like to have a small gas engine , like Honda GX25 or GX33 with a real gear box. Have looked at Eatons hydro parts, we'll see.
Havn't figured out how to move dozer without starting engine. Today I have to remove gears in hub reduction but that will not be practical to do every time machine is moved. Don't know how much force needed to get hydraulic motors turning.

This weekends update:
Steps om push arms was missing, did weld a 6mm steel rod on and increased height with some welds, grinding down to get the anti slip pattern.
http://i1014.photobucket.com/albums/...ps0e1d7151.jpg

The rear part of engine comparment was finaly done:)
Connection to ripper is with quick couplings (will use same outlet for scraper), was not satisfied with the small blocks, did make new longer with a recess to take strain from bolt when cylinder moves. Of course, first one was made with connection wrong:mad:
http://i1014.photobucket.com/albums/...ps5ca5ed1c.jpg

Planning for some painting next weekend on new or remade parts. Still windows to cut, make the connections at cylinders, but no more new parts on "to do" list. Goal is to have model running 3 rd weekend of june at a show north of Stockholm. If everything goes as planned it can be done but still not convinced that all hydraulic will work flawless from beginning.
/Dan

Re: D8R +463 in 1/5,6
 

Dan awsome work...Cant wait to hear this cat run and see it in action..You must get alot of compliments on it at the shows ..dont know if you have seen there are a few larger rc dozers workig on youtube
https://www.youtube.com/watch?v=dCKJQ5S1hcw
Hey Dan seeing you are doing the windows soon thought this may intrest you ..I am going to order some for future projects http://www.greathobbies.com/productinfo/?prod_id=FOR133

Re: D8R +463 in 1/5,6
 

Hey Dan, do you have room to tee in a couple of high pressure ball valves
On the drive motor's? That would give freewheel to the beast!
Cheer's, Neil.

Re: D8R +463 in 1/5,6
 

Dan,

Have you tried just opening the valves up that are there now? You could do some smarts with the servos... Its gotta be easy to run the receiver and servos without the motor?

Cheers,
AP

Re: D8R +463 in 1/5,6
 

Thanks guys for the suggestions. Have not filled up system yet, don't want to stress hyd motors before they have oil. Today it's almost impossible to move the machine if not gears are removed.
Neil, there's not room for anything more inside, it's cramped!
Will test these when filled up, until then go without gears.

Yes Lou, have tried to follow what's shown on tube. I know of one BIG norwegian D11 (1:4 750kg=1600lbs) that has not been seen there yet, guess that will come when snow/winter is over.
FOUND IT:
http://www.youtube.com/watch?v=-MxKX_bhwRI

/Dan

Re: D8R +463 in 1/5,6
 

Looking really good Dan. As far as moving it, not much different than todays skid steers and track loaders. If engine dies, it sits where it is till fixed, no moving it without something to pick it up. Don't ask how I know (new perkins engines aren't cheap lol ) Old ones had a manual bypass valve you could turn out to beable to tow them, new ones with hydraulic released parking brakes can't do it.

Does the guy with the 1:4 D11 have a build thread anywhere?

Re: D8R +463 in 1/5,6
 

D8R-the dozer is looking great! If you want to see how a good operator works, check out D9Joes videos. He is by far the best operator I have seen. Looks just like a real machine working. He is the class of the field in my opinion.