mpj Posted August 18, 2016 Posted August 18, 2016 (edited) Dear all, for the pneumatic contest I'm going to build a simple tracked excavator. My challenge is to make it compact and with a good exterior design. I still have no idea what will be the final subject. A Cat 315F CR or a Liebherr R914 Compact, or even a bigger subject (i.e. Cat 335F CR) in a smaller scale. This morning job was to set up the main boom. Functions: 3 regular movements of the arm and bucket + side sliding with a small cilinder operable front blade (not sure if pneumatic or with gears) (maybe) openable cab door Progress photos: Bye! Edited August 18, 2016 by mpj Quote
syclone Posted August 18, 2016 Posted August 18, 2016 The arm looks very complex, never seen side sliding movements before, will be very interesting to see it Quote
2LegoOrNot2Lego... Posted August 18, 2016 Posted August 18, 2016 I was not aware of the "side sliding" movement either, but that doesn't say that much...haha... :-) Very cool design so far, a lot in a rather small space...cool! Quote
Alasdair Ryan Posted August 18, 2016 Posted August 18, 2016 (edited) Cool,there is not many "knuckle boom" excavator builds. I like Komatsu so here is one of theirs. Looking at your boom perhaps the section that attaches to the main frame could be reduced width ways a bit? Edited August 18, 2016 by Alasdair Ryan Quote
suffocation Posted August 18, 2016 Posted August 18, 2016 Looks promising! I checked out your website and was blown away by some of your models, especially the CAT 323D. Quote
Imanol BB Posted August 18, 2016 Posted August 18, 2016 That is a pretty interesting arm design, it looks very good. Quote
mpj Posted August 18, 2016 Author Posted August 18, 2016 Looking at your boom perhaps the section that attaches to the main frame could be reduced width ways a bit? Yes maybe I can reduce it, let me check what I can do in the next steps Looks promising! I checked out your website and was blown away by some of your models, especially the CAT 323D. Thanks! The 323D now has got stickers with Cat logo and model number so it looks more realistic. But maybe in the next months it will be updated to a 323F version Quote
mpj Posted September 11, 2016 Author Posted September 11, 2016 Hello, I show you some progress on my excavator. It will be definitely a Liebherr R914 Compact. I'm working very slowly, around 4-5 hours in the weekends, so I hope to complete it in time for the contest. Here is the current status: I've completed the undercarriage and added a pneumatic blade, moved by 2 small cilinders. I put a small pump to be operated manually. I preferred this solution instead of runnung an hose from the superstructure. In this way the excavator is free to rotate 360°. The arm is 90% complete, except the "hidraulic" lines. I've used the buckets from the Arocs to create a single large bucket. I had in mind also a quick coupler system to change bucket with other tools, but I think I will add it after compliting the rest of the model (if I will have some time before the deadline! ) Finally I'm working on the superstructure to try to reproduce the compact round shape Any suggestions or comments will be very appreciated Quote
jorgeopesi Posted September 11, 2016 Posted September 11, 2016 I like what I see but a video with manual movement would be better to suggest something or not . Quote
2LegoOrNot2Lego... Posted September 11, 2016 Posted September 11, 2016 This is some serious progress, well done! Quote
mpj Posted October 22, 2016 Author Posted October 22, 2016 Hello! My model is complete, unluckily I had no time to take photos of the progress - I worked on it during the night - very short time for building and bad time for photographs. This is the first photo. Then I will prepare the video. I hope you like it! Quote
Milan Posted October 22, 2016 Posted October 22, 2016 This may be my favorite entry so far! Simple and effective! Quote
Beck Posted October 23, 2016 Posted October 23, 2016 Very very nice! I agree with Milan- probably the entry best thus far. You'd probably want to replace the pins on the armrests with towballs. Quote
gvo25 Posted October 23, 2016 Posted October 23, 2016 hello, Very nice entry, I really like the cab, it's very smooth and well designed. The crane arm is also nicely done. I personally would have chosen another bucket. Good work Quote
mpj Posted October 23, 2016 Author Posted October 23, 2016 8 hours ago, Beck said: Very very nice! I agree with Milan- probably the entry best thus far. You'd probably want to replace the pins on the armrests with towballs. Right! I've already done the photo session, but I will replace them for the video. Thanks 6 hours ago, gvo25 said: hello, Very nice entry, I really like the cab, it's very smooth and well designed. The crane arm is also nicely done. I personally would have chosen another bucket. Good work Yes other buckets are possible, I tried to give a chance to the buckets of the Arocs . Here are other photos: Quote
Appie Posted October 23, 2016 Posted October 23, 2016 Looks great. I don't really like the bucket either, but that's your choice. Quote
efferman Posted October 23, 2016 Posted October 23, 2016 This model shows the big advantages of pneumatic. Full of functions in a small package. And the bucket is agood idea too Quote
falconluan Posted October 23, 2016 Posted October 23, 2016 Wow, I love the exterior very much! The color scheme is very Liebherr and pleasant to look at. Also, love the compact design! Quote
Rishab N Posted October 23, 2016 Posted October 23, 2016 Nice work! I'm not a big fan of the old style and new style panels together, but it overall looks great. Quote
ludov Posted October 23, 2016 Posted October 23, 2016 (edited) Very nice, I like this a lot! Aside from the bucket maybe, I think it is a bit out of proportion, but that's up to you. What's the little blue pump doing down there? What are you showing by disconnecting it? Nevermind, it seems I missed a post. Edited October 23, 2016 by Ludo Visser I see what the pump is for... Quote
AFOLegofan66 Posted October 23, 2016 Posted October 23, 2016 I really like the look of this MOC. Great job!! Quote
Lenivkin_Eugene Posted October 23, 2016 Posted October 23, 2016 (edited) Very beautiful model, instruction will be? Edited October 23, 2016 by Lenivkin_Eugene Quote
Thirdwigg Posted October 23, 2016 Posted October 23, 2016 Great job. I love the Dark Bluish Grey of the chassis. Quote
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