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View Full Version : LIEBHERR PR744 DOZER


unix
04-18-2015, 09:04 AM
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-%E2%94%85%E2%94%85-metal-track-shoe-%C3%971-pieces-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 (www.fotosik.pl)

http://images52.fotosik.pl/691/ba2f1d61fb6e26c4.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/925dc3007c930893.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/ef2a58c5a58d593d.jpg (www.fotosik.pl)

http://images55.fotosik.pl/691/7525e5257c62d74a.jpg (www.fotosik.pl)

http://images51.fotosik.pl/689/883605d33aa0779d.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/992f81f67ccccf9b.jpg (www.fotosik.pl)

http://images54.fotosik.pl/690/ff01684adaca60f4.jpg (www.fotosik.pl)

http://images55.fotosik.pl/691/44dbe16b8bb8ec80.jpg (www.fotosik.pl)

http://images55.fotosik.pl/691/ede2aca9effc12d6.jpg (www.fotosik.pl)

http://images54.fotosik.pl/690/3837de2f24fa8dfb.jpg (www.fotosik.pl)

http://images51.fotosik.pl/689/136ce8df39b445e7.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/dd6d1e85aed89bd0.jpg (www.fotosik.pl)

http://images55.fotosik.pl/691/21ea7e93986baaf0.jpg (www.fotosik.pl)

http://images51.fotosik.pl/689/089ad4ea21fd2e88.jpg (www.fotosik.pl)

http://images53.fotosik.pl/691/24d8fb2fdfda54b5.jpg (www.fotosik.pl)

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http://images52.fotosik.pl/691/9bf09e2b3e08c116.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/5ccfa6003620061e.jpg (www.fotosik.pl)

http://images54.fotosik.pl/690/eba6429f2b18e893.jpg (www.fotosik.pl)

http://images51.fotosik.pl/689/25789ce6c894f8cc.jpg (www.fotosik.pl)

http://images54.fotosik.pl/690/49412471deeedaa9.jpg (www.fotosik.pl)

http://images53.fotosik.pl/691/eaee7aa3faacb85a.jpg (www.fotosik.pl)

http://images51.fotosik.pl/689/ed476bc42f456b88.jpg (www.fotosik.pl)

http://images54.fotosik.pl/690/cdfe4206061a9b8b.jpg (www.fotosik.pl)

unix

kaptain Jack
04-18-2015, 09:44 AM
Wow, is that a laser cut? Impressive.

unix
04-18-2015, 10:31 AM
No, laser does not cut brass, this is cut on home made cnc mill.

unix

Azonic
04-18-2015, 03:18 PM
Great start, keep it coming!

unix
04-19-2015, 09:49 AM
Update :)

http://images53.fotosik.pl/691/09c0a8689478e25c.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/708a28382c9d3397.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/67b5f7f42aecb61f.jpg (www.fotosik.pl)

http://images52.fotosik.pl/691/c95f545e87406c8d.jpg (www.fotosik.pl)

http://images54.fotosik.pl/691/ca8dd23621829b40.jpg (www.fotosik.pl)

http://images51.fotosik.pl/690/80e8e7c829b36416.jpg (www.fotosik.pl)

http://images53.fotosik.pl/691/7f0ec0660a15ec29.jpg (www.fotosik.pl)

unix

sparkycuda
04-19-2015, 10:05 AM
Excellent work! Nice to see another dozer being built.

Ken

Cooper
04-19-2015, 04:24 PM
Excellent !! Love dozers!! Keep the pics coming. Throw in a pic of your cnc mill, I really thinking of converting one. Thanks!!

unix
04-20-2015, 04:26 PM
CNC :)

http://images51.fotosik.pl/692/41e6136e1609ddb3.jpg (www.fotosik.pl)

http://images54.fotosik.pl/692/9616d96dd39fb87d.jpg (www.fotosik.pl)

http://images55.fotosik.pl/693/835c80c62ec7985f.jpg (www.fotosik.pl)

http://images52.fotosik.pl/693/19d65797803e0962.jpg (www.fotosik.pl)


Track :)

http://images53.fotosik.pl/693/13153b7da3d503a9.jpg (www.fotosik.pl)

http://images53.fotosik.pl/693/be0c322a67312b08.jpg (www.fotosik.pl)

http://images53.fotosik.pl/693/9bed27547a114505.jpg (www.fotosik.pl)

http://images53.fotosik.pl/693/501ba392e281d185.jpg (www.fotosik.pl)


unix

avel
04-22-2015, 03:46 PM
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?

unix
07-05-2015, 02:39 PM
http://images55.fotosik.pl/760/5a5c449cfc2f3ad3.jpg (www.fotosik.pl)

http://images52.fotosik.pl/760/1a82a3a34dd26d05.jpg (www.fotosik.pl)

http://images51.fotosik.pl/758/9951ccf6c0bb42ad.jpg (www.fotosik.pl)

http://images54.fotosik.pl/759/5a1622c0b6c3fb8e.jpg (www.fotosik.pl)

http://images55.fotosik.pl/760/f63e8440484ef27c.jpg (www.fotosik.pl)

http://images55.fotosik.pl/760/e0b1f4f88af41618.jpg (www.fotosik.pl)

http://images51.fotosik.pl/758/a9323ac35c5dfb94.jpg (www.fotosik.pl)

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http://images53.fotosik.pl/759/60cd0f0156cb259b.jpg (www.fotosik.pl)

unix

unix
07-05-2015, 02:40 PM
http://images51.fotosik.pl/758/88d991cfe12a286b.jpg (www.fotosik.pl)

http://images52.fotosik.pl/760/3b1397f534af3f48.jpg (www.fotosik.pl)

http://images55.fotosik.pl/760/956dc60d0e50efad.jpg (www.fotosik.pl)

dozerbuilder
07-05-2015, 10:41 PM
Wow! Great build!

unix
09-12-2015, 11:35 AM
:)

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

Reagrds
Unix

tc1cat
09-12-2015, 04:12 PM
Great video! You really have made a lot of progress since your last update. All of your videos of this build look great!!

kerst
09-12-2015, 06:02 PM
Very nice! Beautiful work.

Kerst

Rvjimd
09-14-2015, 07:17 PM
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

unix
09-18-2015, 02:50 PM
Pololu 172:1 geared motors :)

unix
11-07-2015, 03:43 PM
Dozer ready :)

http://images72.fotosik.pl/44/d2b44d4209790b4cm.jpg (http://www.fotosik.pl/zdjecie/pelne/d2b44d4209790b4c) http://images72.fotosik.pl/44/6a21cc5f67cba595m.jpg (http://www.fotosik.pl/zdjecie/pelne/6a21cc5f67cba595) http://images71.fotosik.pl/44/19069d48e455fe2dm.jpg (http://www.fotosik.pl/zdjecie/pelne/19069d48e455fe2d) http://images71.fotosik.pl/44/815619ee3ac6644am.jpg (http://www.fotosik.pl/zdjecie/pelne/815619ee3ac6644a) http://images72.fotosik.pl/44/9f73fcecfb2fed69m.jpg (http://www.fotosik.pl/zdjecie/pelne/9f73fcecfb2fed69) http://images72.fotosik.pl/44/05a9905e30d85b2cm.jpg (http://www.fotosik.pl/zdjecie/pelne/05a9905e30d85b2c) http://images71.fotosik.pl/44/388f4d8701ad7403m.jpg (http://www.fotosik.pl/zdjecie/pelne/388f4d8701ad7403) http://images72.fotosik.pl/44/e86cbd2743fa8f4bm.jpg (http://www.fotosik.pl/zdjecie/pelne/e86cbd2743fa8f4b) http://images72.fotosik.pl/44/975d677003c17863m.jpg (http://www.fotosik.pl/zdjecie/pelne/975d677003c17863) http://images71.fotosik.pl/44/08f175c948198a16m.jpg (http://www.fotosik.pl/zdjecie/pelne/08f175c948198a16) http://images72.fotosik.pl/44/488328659fa440c6m.jpg (http://www.fotosik.pl/zdjecie/pelne/488328659fa440c6) http://images71.fotosik.pl/44/ab435dbedc6360ecm.jpg (http://www.fotosik.pl/zdjecie/pelne/ab435dbedc6360ec) http://images72.fotosik.pl/44/40567a37b2683f82m.jpg (http://www.fotosik.pl/zdjecie/pelne/40567a37b2683f82) http://images72.fotosik.pl/44/cc25bd321693cba4m.jpg (http://www.fotosik.pl/zdjecie/pelne/cc25bd321693cba4) http://images71.fotosik.pl/44/42bdeeb5547fe35em.jpg (http://www.fotosik.pl/zdjecie/pelne/42bdeeb5547fe35e) http://images72.fotosik.pl/44/16731268843ea865m.jpg (http://www.fotosik.pl/zdjecie/pelne/16731268843ea865)

Unix

Rakthi
11-07-2015, 10:26 PM
Great job! Pure eye candy. Wish I had a fraction of your skills.

Digger_Bear
11-08-2015, 07:34 AM
Excellent, love it. Nice paint scheme as well.

Snochaser
11-08-2015, 09:54 AM
Beautiful job.