Liebherr R984 1:14
 

Hi to everybody, my name is Adolfo from the south of Spain, I would like to share with you my machine construction, this project is a big project in those post i show the works of years working, is tired but it´s funny :)

i have not finish the 3D model yet but i want to machining something! ok, i´ll post a lot of photo and video,as note, and all my major machines are DIY
ok, here we go!

the first piece is a link of the chain

http://img.photobucket.com/albums/v2...0.jpg~original
http://img.photobucket.com/albums/v2...3.jpg~original
http://img.photobucket.com/albums/v2...4.jpg~original
http://img.photobucket.com/albums/v2...a.jpg~original
http://img.photobucket.com/albums/v2...d.jpg~original

i have to machining 196 links, a preview model
http://img.photobucket.com/albums/v2...d.jpg~original

a video of the machining (right link)
http://www.youtube.com/watch?v=7DmqK...ature=youtu.be
https://www.youtube.com/watch?v=7Rv3...m-upload_owner

and the left link
https://www.youtube.com/watch?v=P0Jb...ature=youtu.be

http://img.photobucket.com/albums/v2...3.jpg~original
http://img.photobucket.com/albums/v2...2.jpg~original
http://img.photobucket.com/albums/v2...9.jpg~original
http://img.photobucket.com/albums/v2...2.jpg~original
http://img.photobucket.com/albums/v2...0.jpg~original
http://img.photobucket.com/albums/v2...d.jpg~original
http://img.photobucket.com/albums/v2...c.jpg~original

the traction wheel:
i use a cycloid gear inside the wheel cube with a relation on 1:100 and i turn this shaft using a timing pulley with a 1:6 relation --> final relation 1:600
http://img.photobucket.com/albums/v2...a.jpg~original

sectional cut
http://img.photobucket.com/albums/v2...8.jpg~original
http://img.photobucket.com/albums/v2...4.jpg~original
http://img.photobucket.com/albums/v2...7.jpg~original
http://img.photobucket.com/albums/v2...f.jpg~original

videos
http://www.youtube.com/watch?v=vtx9vAy3h9I
http://www.youtube.com/watch?v=jrk4c-XzaZA


http://img.photobucket.com/albums/v2...3.jpg~original
http://img.photobucket.com/albums/v2...2.jpg~original
http://img.photobucket.com/albums/v2...0.jpg~original
http://img.photobucket.com/albums/v2...3.jpg~original

ok, this is the current status , i need to make the pads for the chain, at the first place i thought to machining it, but i have to rotate them in the mill many times, too boring, i had to learn another technique, lost wax casting

the first cast (bronze)
http://img.photobucket.com/albums/v2...5.jpg~original
http://img.photobucket.com/albums/v2...b.jpg~original
http://img.photobucket.com/albums/v2...c.jpg~original
http://img.photobucket.com/albums/v2...1.jpg~original
http://img.photobucket.com/albums/v2...2.jpg~original
http://img.photobucket.com/albums/v2...4.jpg~original

Re: Liebherr R984 1:14
 

http://img.photobucket.com/albums/v2...f.jpg~original (obviously these are not the final screws)
http://img.photobucket.com/albums/v2...e.jpg~original

the second cast (brass)
http://img.photobucket.com/albums/v2...4.jpg~original
http://img.photobucket.com/albums/v2...b.jpg~original
http://img.photobucket.com/albums/v2...f.jpg~original
http://img.photobucket.com/albums/v2...4.jpg~original
http://img.photobucket.com/albums/v2...b.jpg~original
http://img.photobucket.com/albums/v2...7.jpg~original
http://img.photobucket.com/albums/v2...2.jpg~original
http://img.photobucket.com/albums/v2...0.jpg~original
http://img.photobucket.com/albums/v2...0.jpg~original
http://img.photobucket.com/albums/v2...d.jpg~original
http://img.photobucket.com/albums/v2...8.jpg~original
the third cast (brass)

the third cast was better, i made the pads i need and i do a test cast, to see that this technique is able

the wax test cast
http://img.photobucket.com/albums/v2...7.jpg~original

the final cast
http://img.photobucket.com/albums/v2...c.jpg~original

my pads cast
http://img.photobucket.com/albums/v2...2.jpg~original

http://img.photobucket.com/albums/v2...2.jpg~original

Re: Liebherr R984 1:14
 

Well, these are the most important pieces, now it make a dotted and drill (which has no mystery), one thing that if it could be funny / curious, are the nuts with hex screws that hold the pads to the chain, finally i did it with my cnc router, the pieces were made in brass, nuts are threaded to M2 and measure 3x3mm, totaling 405 nuts, machined with a 1.5mm drill (the champion of end mills)

http://img.photobucket.com/albums/v2...0.jpg~original

http://img.photobucket.com/albums/v2...9.jpg~original

http://img.photobucket.com/albums/v2...0.jpg~original

a little video of the machining
https://www.youtube.com/watch?v=NHkC...ature=youtu.be

and finally .. I could assemble the track

http://img.photobucket.com/albums/v2...2.jpg~original

http://img.photobucket.com/albums/v2...7.jpg~original

http://img.photobucket.com/albums/v2...0.jpg~original

more photos, this is the time of the hubcaps for the traction wheel, made of aluminum
the master piece is made in 2 pieces, one milling and the other are made using laser engraving
http://img.photobucket.com/albums/v2...0.jpg~original

after that, both are join
http://img.photobucket.com/albums/v2...3.jpg~original

the mold and the wax copies
http://img.photobucket.com/albums/v2...9.jpg~original

the result of the casting
http://img.photobucket.com/albums/v2...d.jpg~original

http://img.photobucket.com/albums/v2...2.jpg~original

http://img.photobucket.com/albums/v2...e.jpg~original

salu2!

Re: Liebherr R984 1:14
 

Fantastic work Tessen, Most of us can only dream making stuff this good.

Re: Liebherr R984 1:14
 

Wow, beautiful work!. Please continue to show us the progress.

Re: Liebherr R984 1:14
 

Is the advantage of a cycloid reduction a thinner package than a planetary? Watching the video of you spinning it fast with a drill, it looks like there may be some vibration to it... :thinking:

Re: Liebherr R984 1:14
 

thanks for comment
i progress too slowly, now i´m making the hydraulic valve block i hope to share the test soon

Lil Giants: cycloidal reduction have many advantages, some are:

- if you turn the output axis, the input axis can´t be move (brake system)
- there are more surface in contac--> can manage bigger loads
- the output axis have a big diameter

in the video there are 2 stages of 1:10 (total 1:100) but this is a first test, now i have 2 stages of 1:15 (total 1:225) in the same place (and could increase the final relation) to obtain this is complex with spur gears (but i don't say you that it can't be done)

on the negative side this gearbox are difficult to machining, nevertheless i´ll i use it on the chain and in the turret turn

regards

Re: Liebherr R984 1:14
 

Very nice work so far Adolfo! Is your CNC mill with 4th axis home made? I bet a clever bloke like you could put a bar feed on it and go lights out? Or has it already got one? ;) Your work on the cycloidal reduction is very interesting! Please keep posting and sharing your progress with us :cool::)

Re: Liebherr R984 1:14
 

thanks RCKiwi
yes, all my machines are diy at this moment i have built (all are in my youtube channel)
- laser-plasma cutter
- router with 4 axis
- cnc lathe
- wire EDM cutter
- SLA 3D printer
- fellows gear shaper
- ...
the 4 axis not have a pull bar due to the reduction i had used, the gearhead not have a through bore, for a feeder i need this and automatic lathe chuck, if i have to make thousand of pieces from a rod, maybe i would think about it ;)

i hope posting soon with a little test..

regards

Re: Liebherr R984 1:14
 

Wow, you have many skills.
Tracks and drives are awesome.

Re: Liebherr R984 1:14
 

more advanced, the lower structure, all stainless steel 3 mm and 1.5mm

http://img.photobucket.com/albums/v2...h.jpg~original
http://img.photobucket.com/albums/v2...l.jpg~original
http://img.photobucket.com/albums/v2...m.jpg~original
http://img.photobucket.com/albums/v2...z.jpg~original
http://img.photobucket.com/albums/v2...m.jpg~original

http://img.photobucket.com/albums/v2...q.jpg~original
http://img.photobucket.com/albums/v2...j.jpg~original

the following photos correspond to the lost wax casting of pieces for support and guides rollers on tracks

http://img.photobucket.com/albums/v2...4.jpg~original
http://img.photobucket.com/albums/v2...8.jpg~original
http://img.photobucket.com/albums/v2...t.jpg~original
http://img.photobucket.com/albums/v2...n.jpg~original
http://img.photobucket.com/albums/v2...u.jpg~original

and a pair of test of my future valves (for the time, prototypes)
https://www.youtube.com/watch?v=ACX_2GJdTNQ
https://www.youtube.com/watch?v=-big2h1tJiE

salu2! (best regards)

Re: Liebherr R984 1:14
 

Amazing workmanship and detail!

Ken

Re: Liebherr R984 1:14
 

thanks sparkycuda

more advances
http://img.photobucket.com/albums/v2...q.jpg~original
http://img.photobucket.com/albums/v2...p.jpg~original
http://img.photobucket.com/albums/v2...7.jpg~original
http://img.photobucket.com/albums/v2...b.jpg~original
http://img.photobucket.com/albums/v2...j.jpg~original
http://img.photobucket.com/albums/v2...z.jpg~original
http://img.photobucket.com/albums/v2...y.jpg~original
http://img.photobucket.com/albums/v2...7.jpg~original

http://img.photobucket.com/albums/v2...g.jpg~original
http://img.photobucket.com/albums/v2...k.jpg~original
http://img.photobucket.com/albums/v2...o.jpg~original

Re: Liebherr R984 1:14
 

Hello everyone, the machine is almost finished, here I leave the rest of the development

the last photos and one test video
https://i.imgur.com/hRBJnpV.jpg
https://i.imgur.com/dnMPxtv.jpg
https://i.imgur.com/aCIfSJm.jpg
https://i.imgur.com/QLYuxS9.jpg

https://youtu.be/ZSXQkJDTfbQ


https://i.imgur.com/Gejjkig.jpg
https://i.imgur.com/7lj2xPZ.jpg
https://i.imgur.com/0jiAEjw.jpg
https://i.imgur.com/9QnQSzZ.jpg
https://i.imgur.com/rpnLr2P.jpg
https://i.imgur.com/IokRF0e.jpg
https://i.imgur.com/UmRbnJU.jpg


https://www.youtube.com/watch?v=DQ55BgwHt-Q

regards

Re: Liebherr R984 1:14
 

this is the counterweight of the machine, this is only the model 3d printed to obtain the final part from casting
The first thing to decide is the material, in this case I have chosen to make the counterweight, lead, by weight it would be totally out of scale, but I want to give a certain touch of "forcefulness" to the machine, besides, to remove there is always time
https://i.imgur.com/2Ez2YKE.jpg
next part, letters and details, at this time i thought to use 3d printed part, but sure i have troubles in cast, no way, plan B
https://i.imgur.com/1zw2DoY.jpg

the cast
https://i.imgur.com/nf2WcYH.jpg
https://i.imgur.com/QG5lFYZ.jpg
https://i.imgur.com/LcALpu6.jpg
https://i.imgur.com/a5uavPa.jpg
https://i.imgur.com/2G63Abc.jpg
https://i.imgur.com/nFksgHT.jpg
https://i.imgur.com/HOA3yRG.jpg
https://i.imgur.com/VxXVlC7.jpg
I have to pause.. a little problem
https://i.imgur.com/61uxsP0.jpg
https://i.imgur.com/OANBgUX.jpg
a rebob (i don´t know if is the correct word, a superficial fail) i have to repair, first i have to prepare the surface and after use a epoxy putty to fill the fail and and a lot of sanding by hand...
https://i.imgur.com/IPxqpGp.jpg
... or not, better to use the machines
https://i.imgur.com/xUmSW55.jpg
https://i.imgur.com/mbohBOU.jpg
https://i.imgur.com/BMonE14.jpg

Now time for the details, i have use my diy mill and wire edm
https://i.imgur.com/6qZLSyr.jpg
https://i.imgur.com/BZH0p5B.jpg
https://i.imgur.com/zQ36Qlx.jpg
https://i.imgur.com/aHd6ndz.jpg
https://i.imgur.com/hJkewfn.jpg
https://i.imgur.com/ECe5gu8.jpg
https://i.imgur.com/yYkqbha.jpg
https://i.imgur.com/HvgfKA4.jpg
https://i.imgur.com/Di6mMOW.jpg

the final look has to be similar like this
https://i.imgur.com/6tU92cv.jpg


a pair of video
https://www.youtube.com/watch?v=BmlNWxqZb-U
https://www.youtube.com/watch?v=pkb8AXyLN8I&t

i have make an useful (util,utile?) to put the pieces in place
https://i.imgur.com/x6jTc5B.jpg
https://i.imgur.com/lVOSR0h.jpg

Re: Liebherr R984 1:14
 

the bucket, this is a pretty piece, made of steel sheets cut with laser https://i.imgur.com/F5zq6rn.jpg
https://i.imgur.com/2wM5Yt8.jpg
https://i.imgur.com/b5iPFgc.jpg
https://i.imgur.com/ZvnA3x2.jpg
https://i.imgur.com/FDElu16.jpg
https://i.imgur.com/zdgU8pk.jpg
https://i.imgur.com/Fstp8ns.jpg
https://i.imgur.com/Vd0Xu5p.jpg
https://i.imgur.com/Eypupo2.jpg
https://i.imgur.com/IUy17xs.jpg
https://i.imgur.com/dBy8Od6.jpg
https://i.imgur.com/dqM8ho0.jpg
https://i.imgur.com/GEyz8yL.jpg
on the inside, it measures 185mm


ok, next phase
i will do the "tooth" and "tooth holder" with lost wax process, but using 3D printer technique (ussing a diy 3D printer), first time, to make the 3D print model (i use different types of resin)
https://i.imgur.com/vLxZC83.jpg
https://i.imgur.com/XhXWVPy.jpg
https://i.imgur.com/naP07TT.jpg
https://i.imgur.com/LtWjnzT.jpg
https://i.imgur.com/wLEyT5g.jpg
https://i.imgur.com/mwclA5J.jpg
https://i.imgur.com/bYdvRjY.jpg
https://i.imgur.com/CGSf1L3.jpg
https://i.imgur.com/wDoaYLr.jpg

now i use those part to make silicone models to obtain wax parts
https://i.imgur.com/lY5bDxL.jpg
https://i.imgur.com/935XFz1.jpg
https://i.imgur.com/K1P6xki.jpg
https://i.imgur.com/mgXVb5S.jpg

Re: Liebherr R984 1:14
 

(how easy and fast seen like this hehe)
https://i.imgur.com/8YZDEje.jpg
https://i.imgur.com/i3PWmJZ.jpg
https://i.imgur.com/CiaGc97.jpg
https://i.imgur.com/Ku8JagC.jpg
https://i.imgur.com/vjQFDvq.jpg

the pieces welded by brazing
https://i.imgur.com/k2KBCqc.jpg
https://i.imgur.com/x99bc7k.jpg
https://i.imgur.com/pmyWrL7.jpg
https://i.imgur.com/kZvQJkM.jpg
https://i.imgur.com/v2GRvFN.jpg
https://i.imgur.com/UEIlu99.jpg

and almost finished (yet not, I have to add minor details)
https://i.imgur.com/RIDcpBq.jpg
https://i.imgur.com/mEkdsBZ.jpg
https://i.imgur.com/EixpgMe.jpg

another piece, the arm
are made of steel ribs cut with laser and welded together with MIG
https://i.imgur.com/uIzXhS0.jpg
https://i.imgur.com/oR8fj4f.jpg
https://i.imgur.com/vO2bH4E.jpg

the previous piece need on both sides spacers, made of brass and using sand casting technique, those part are glued with epoxy to the main body, but it´s not important, once time in place, can´t move
https://i.imgur.com/uJgSwYf.jpg
https://i.imgur.com/sHFUFFs.jpg
https://i.imgur.com/KMkeqQV.jpg
https://i.imgur.com/Bm2wifd.jpg
https://i.imgur.com/l8H97ki.jpg

and after machining
https://i.imgur.com/noP6JCj.jpg
https://i.imgur.com/aA0TSHy.jpg
https://i.imgur.com/nntrhNR.jpg
https://i.imgur.com/wu8TRd4.jpg

Re: Liebherr R984 1:14
 

now the part that hold the bucket hydraulic piston (made of brass) in the arm
https://i.imgur.com/qd2afgC.jpg
https://i.imgur.com/KDA0vRA.jpg
https://i.imgur.com/8TxGF7u.jpg
https://i.imgur.com/lktbnMf.jpg
https://i.imgur.com/MaqrUXs.jpg
https://i.imgur.com/RXO5JsV.jpg
https://i.imgur.com/OjyXrj5.jpg

and all the pieces that form the arm
https://i.imgur.com/2h1h7Uk.jpg

this part is a rock protector in the lower side of the arm
https://i.imgur.com/EBfWxDm.jpg
https://i.imgur.com/zoLWbI6.jpg
https://i.imgur.com/gY8pLNT.jpg
https://i.imgur.com/xXfeOVn.jpg
and the final piece (almost)
https://i.imgur.com/FLaXBwL.jpg

These parts are those that articulate the bucket with the arm,
This piece is made of brass, joins the piston with the bucket, some photos of some parts of the machining
https://i.imgur.com/LE52Pb8.jpg
https://i.imgur.com/OkyVnie.jpg
https://i.imgur.com/pb5nTWQ.jpg
https://i.imgur.com/2WNiTd0.jpg
https://i.imgur.com/mhtjSiz.jpg
https://i.imgur.com/CmiYa0G.jpg

and these 2 parts make the bucket pivot on the arm, they are made of steel (I do not like to work with this engine ... it is a factory to produce pins)
https://i.imgur.com/rrI5pQP.jpg
https://i.imgur.com/fr7V7Ze.jpg
https://i.imgur.com/pFboel2.jpg
https://i.imgur.com/0WpIWjU.jpg
https://i.imgur.com/qGaxBUM.jpg
https://i.imgur.com/icvnxm1.jpg
https://i.imgur.com/C2T29Hq.jpg
https://i.imgur.com/tb2e7tn.jpg

and this a presentation of how it´s works
https://i.imgur.com/8mm6Xq9.jpg
https://i.imgur.com/MCgG27j.jpg

regards

Re: Liebherr R984 1:14
 

now i show some minor details
https://i.imgur.com/wIqpsjM.jpg
https://i.imgur.com/5xn4ynT.jpg
https://i.imgur.com/do8FskS.jpg
https://i.imgur.com/uzeif6r.jpg

this is the original stairs on the lower superstructure
https://i.imgur.com/L0b29VO.jpg

and here my pieces to scale
https://i.imgur.com/h00kS5f.jpg
https://i.imgur.com/lkqrv72.jpg
https://i.imgur.com/v4vfY6q.jpg
https://i.imgur.com/GgPZ9cQ.jpg
https://i.imgur.com/OPvSsii.jpg
https://i.imgur.com/zedbUAX.jpg

the turret turning system

https://i.imgur.com/3mfrSfo.jpg
https://i.imgur.com/EQb4t6a.jpg
https://i.imgur.com/uAtzYiX.jpg
https://i.imgur.com/Z9vhbtS.jpg
https://i.imgur.com/vLRbS2e.jpg
https://i.imgur.com/NtfZrZg.jpg
https://i.imgur.com/RhTw5KZ.jpg
https://i.imgur.com/rYeUiII.jpg
https://i.imgur.com/p8e4mzQ.jpg
https://i.imgur.com/NjRH0S6.jpg
https://i.imgur.com/xjtYoYw.jpg
https://i.imgur.com/LweqbT0.jpg
https://i.imgur.com/4gm4AS9.jpg
https://i.imgur.com/Z2nqjxt.jpg
https://i.imgur.com/RrWocRD.jpg
a little video of the motor and the gearhead

https://youtu.be/6APESpE42aY

and the rest of gearhead
https://i.imgur.com/fwSkLqw.jpg
https://i.imgur.com/b7tf08f.jpg

and a video to show how it´s works
https://youtu.be/oIVaSKgdFJg

Re: Liebherr R984 1:14
 

base for the upper structure
This part is the one that supports the whole upper set, to it is taken both the arm and the counterweight, the base is a 6mm of steel sheet and the most important parts are either groove joints or threaded, photos:

https://i.imgur.com/LZ7CiqS.jpg
https://i.imgur.com/HFFBMAb.jpg
https://i.imgur.com/5bhPRFg.jpg
https://i.imgur.com/AKzA8hE.jpg

the boom:
It is composed of several pieces, the main structure is made by joining steel sheets of different thicknesses, with them I create an inside skeleton, the pivot points are solid pieces, to complete it i will fill the interior with epoxy and filler to give more consistence , Photos:


https://i.imgur.com/LjB2ldP.jpg
https://i.imgur.com/IBcKlZq.jpg
https://i.imgur.com/eDt417f.jpg
https://i.imgur.com/XDuro0f.jpg
https://i.imgur.com/yBYfSwq.jpg
https://i.imgur.com/3p2aEgf.jpg
https://i.imgur.com/d67NhQo.jpg
https://i.imgur.com/HqXzjcm.jpg


reinforcements at the tip of the arm
https://i.imgur.com/VZWDNbh.jpg
https://i.imgur.com/BfdvaP1.jpg


and the look of the set presented
https://i.imgur.com/Njxe6aN.jpg


the following is the joining of the hydraulics ram in the boom, I use a piece of brass and I will mechanize it to shape
https://i.imgur.com/C2iKs3m.jpg
https://i.imgur.com/RjqLD9D.jpg
https://i.imgur.com/b2mgG0R.jpg


this is the set presented
https://i.imgur.com/Q4EQ8jr.jpg
https://i.imgur.com/1j656iS.jpg


The next piece makes the pivot point of the pistons that move the arm, this piece is taken out of casting brass
https://i.imgur.com/Lnu5lbv.jpg


Another thing I have done is accentuate the detail of the welds on both the sides of the machine, using copper wire and solder
https://i.imgur.com/qK7RGOf.jpg
https://i.imgur.com/T7WPP6l.jpg
https://i.imgur.com/Y0DJdj4.jpg

and one of the last steps would be to fill as previously mentioned with resin and filler to give more rigidity to the set, filling gaps and fixing some internal parts
https://i.imgur.com/gCsXE3P.jpg


and here once the resin dries
https://i.imgur.com/wTTmgbT.jpg
https://i.imgur.com/KhMG487.jpg