Pelle Hydraulique liebherr 984R 1:14

[TESSEN]

Hi,in the first place and after the presentation of myself in the correct section, sorry to write in english, if anyone want to write can do it in french, ok, the important part, the pictures

in those post i'll 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







i have to machining 196 links, a preview model


a video of the machining (right link)
[bbvideo=853,480]https://youtu.be/7DmqKonu2IE[/bbvideo]
[bbvideo=853,480]https://youtu.be/7Rv3OzudaCM[/bbvideo]

and the left link
[bbvideo=853,480]https://youtu.be/P0JbwqnjaF8[/bbvideo]










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


sectional cut





videos
[bbvideo=560,315]https://youtu.be/vtx9vAy3h9I[/bbvideo]

[bbvideo=560,315]https://youtu.be/jrk4c-XzaZA[/bbvideo]








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)







regards

[cc38150]

Really nice work, the parts are beautiful
You make them with a CNC?

[TESSEN]

Hi cc38150, thanks, yes, the most parts are made with a self made cnc machinery

more photos
(obviously these are not the final screws)


the second cast (brass)











the third cast (brass)

the third casting was better, i made the pads that i needed and i did a test casting, to saw that this technique is able

the wax test cast


the final cast


my pads cast

[tortle]

Beautiful work tessen

[MAILLOY]

nice, goob job love this

[ZipZip]

Great job

[TESSEN]

thanks guys!

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)







a little video of the machining
[bbvideo=853,480]https://youtu.be/NHkC2UHnynI[/bbvideo]

and finally .. I could assemble the track







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


after that, both are join


the mold and the wax copies


the result of the casting






salu2!

[louloubenz]

Very beautufull job

[Bartste]

Good job ! Thanks for sharing.

[TESSEN]

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








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








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

salu2! (best regards)

[Goliath]

Good job!!!

[CATER PILLAR]

NICE ,very NICE

[TESSEN]

thanks to all

and the latest advances

[crocblanc01]

Very good job
Can you give us the weight of the base

Envoyé de mon PLK-L01 en utilisant Tapatalk

[TESSEN]

thanks, i don't know what part you refer, but all the lower superstructure weighs about 15 Kg

the last photos and one test video




[bbvideo=853,480]https://youtu.be/ZSXQkJDTfbQ[/bbvideo]

regards