LIEBHERR PR744 DOZER
 

Hi,

This is my next project, Liebherr PR744 :)

Chassis - brass
Drive - Pololu #1107 1:131
Track - alu track from http://www.rcbrmin.com/excavator-112...ces-p-683.html
Electronics - my project on Arduino Mega 2560 + VNH2SP30 Shield
Several elements printed on a 3D printer


http://images55.fotosik.pl/691/1ad44390f7bbe318.jpg

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http://images54.fotosik.pl/690/eba6429f2b18e893.jpg

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http://images51.fotosik.pl/689/ed476bc42f456b88.jpg

http://images54.fotosik.pl/690/cdfe4206061a9b8b.jpg

unix

Re: LIEBHERR PR744 DOZER
 

Wow, is that a laser cut? Impressive.

Re: LIEBHERR PR744 DOZER
 

No, laser does not cut brass, this is cut on home made cnc mill.

unix

Re: LIEBHERR PR744 DOZER
 

Great start, keep it coming!

Re: LIEBHERR PR744 DOZER
 

Update :)

http://images53.fotosik.pl/691/09c0a8689478e25c.jpg

http://images52.fotosik.pl/691/708a28382c9d3397.jpg

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http://images53.fotosik.pl/691/7f0ec0660a15ec29.jpg

unix

Re: LIEBHERR PR744 DOZER
 

Excellent work! Nice to see another dozer being built.

Ken

Re: LIEBHERR PR744 DOZER
 

Excellent !! Love dozers!! Keep the pics coming. Throw in a pic of your cnc mill, I really thinking of converting one. Thanks!!

Re: LIEBHERR PR744 DOZER
 

CNC :)

http://images51.fotosik.pl/692/41e6136e1609ddb3.jpg

http://images54.fotosik.pl/692/9616d96dd39fb87d.jpg

http://images55.fotosik.pl/693/835c80c62ec7985f.jpg

http://images52.fotosik.pl/693/19d65797803e0962.jpg


Track :)

http://images53.fotosik.pl/693/13153b7da3d503a9.jpg

http://images53.fotosik.pl/693/be0c322a67312b08.jpg

http://images53.fotosik.pl/693/9bed27547a114505.jpg

http://images53.fotosik.pl/693/501ba392e281d185.jpg


unix

Re: LIEBHERR PR744 DOZER
 

Wow! Nice! Seriously, sooooo awesome!!!

Why an Arduino?

The gears look weak, you might have to slot and key the gear on the motor shaft. I'm not sure if that is the proper term. I had problems with a gear slipping on my loader.

Dude really awesome build, keep the pictures and text coming if you have the time to post them up.

How many hydraulic valves/functions are you thinking of having?

Re: LIEBHERR PR744 DOZER
 

http://images55.fotosik.pl/760/5a5c449cfc2f3ad3.jpg

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unix

Re: LIEBHERR PR744 DOZER
 

http://images51.fotosik.pl/758/88d991cfe12a286b.jpg

http://images52.fotosik.pl/760/3b1397f534af3f48.jpg

http://images55.fotosik.pl/760/956dc60d0e50efad.jpg

Re: LIEBHERR PR744 DOZER
 

Wow! Great build!

Re: LIEBHERR PR744 DOZER
 

:)

https://www.youtube.com/watch?v=gc1Pb3akIHU

Reagrds
Unix

Re: LIEBHERR PR744 DOZER
 

Great video! You really have made a lot of progress since your last update. All of your videos of this build look great!!

Re: LIEBHERR PR744 DOZER
 

Very nice! Beautiful work.

Kerst

Re: LIEBHERR PR744 DOZER
 

Very cool! Glad this got bumped, I had not seen this project until now. What gear ratio are the drive motors? And, is the speed/power about right? What battery are you running? Haven't watched the video yet, hope my questions are appropriate.

Thanks for posting!

(Watched the video, nice, can't wait to see the tracks move!)

Jim

Re: LIEBHERR PR744 DOZER
 

Pololu 172:1 geared motors :)

Re: LIEBHERR PR744 DOZER
 

Dozer ready :)

http://images72.fotosik.pl/44/d2b44d4209790b4cm.jpg http://images72.fotosik.pl/44/6a21cc5f67cba595m.jpg http://images71.fotosik.pl/44/19069d48e455fe2dm.jpg http://images71.fotosik.pl/44/815619ee3ac6644am.jpg http://images72.fotosik.pl/44/9f73fcecfb2fed69m.jpg http://images72.fotosik.pl/44/05a9905e30d85b2cm.jpg http://images71.fotosik.pl/44/388f4d8701ad7403m.jpg http://images72.fotosik.pl/44/e86cbd2743fa8f4bm.jpg http://images72.fotosik.pl/44/975d677003c17863m.jpg http://images71.fotosik.pl/44/08f175c948198a16m.jpg http://images72.fotosik.pl/44/488328659fa440c6m.jpg http://images71.fotosik.pl/44/ab435dbedc6360ecm.jpg http://images72.fotosik.pl/44/40567a37b2683f82m.jpg http://images72.fotosik.pl/44/cc25bd321693cba4m.jpg http://images71.fotosik.pl/44/42bdeeb5547fe35em.jpg http://images72.fotosik.pl/44/16731268843ea865m.jpg

Unix

Re: LIEBHERR PR744 DOZER
 

Great job! Pure eye candy. Wish I had a fraction of your skills.

Re: LIEBHERR PR744 DOZER
 

Excellent, love it. Nice paint scheme as well.