efferman Posted October 21, 2019 Posted October 21, 2019 (edited) The convention weekend is passed and the Liebherr has done many lifts. The Modified boom showed only one bug at the first Day: Two axles on the Bucket tilt drivetrain moved out, but this was easy to fix so i hd no problems at the second day. so i had 14 Hours of digging in two days. btw, a small group phot with two other 9800 Edited October 21, 2019 by efferman Quote
rekreK Posted October 21, 2019 Posted October 21, 2019 7 hours ago, efferman said: so i had 14 Hours of digging in two days How many battery packs was this? Quote
efferman Posted October 21, 2019 Posted October 21, 2019 On the first day i replaced the batterys in the upper box after 3 hours. At the second day accidently after 4hours and 30 minutes. I had not checked the running time. i was impressed how long the batteries (varta longlife max power) are running this. After 7 hours my nokia was empty and tne digging had an end. Quote
efferman Posted October 22, 2019 Posted October 22, 2019 I have a question to you. Do you would accept a not smooth running track when all electric parts would be in the upper carriage? This would make it possible to share the uppercarriage functions on both Hubs and reducing the load on the overlaod protection when working with all boom functions at the same time? Quote
rekreK Posted October 22, 2019 Posted October 22, 2019 8 hours ago, efferman said: Do you would accept a not smooth running track when all electric parts would be in the upper carriage? Standard tracks are not very smooth already, ok for straight, but any turn and its clutch clicking town. For the real machine, tracks are slow, but arm/bucket movements are fast, so the model is currently backwards anyway. Quote
1gor Posted October 23, 2019 Posted October 23, 2019 On 10/19/2019 at 9:16 PM, suffocation said: Hi Igor, I got the DBG sprockets from Bricks&Pieces for €1.24 each. Each sprocket is driven by 1 L motor geared down 8.34:1 (12->20, 8->24, 24->40). Quite frankly I don't think I'm going to finish the model. I started building the superstructure with my spares (plus the only two XL actuators I could afford from B&P) and found it so dreadfully boring - probably the most tedious, unchallenging and uninspiring build I've ever come across. I studied the rest of the instructions and it doesn't seem to get any better, save maybe for the arm. Anyway, I got this far and it's as far as I'm willing to go. Sorry for late reply, 1.24€ is decent price indeed (4.96€ total). L-motors have more mounting possibilities that XL if you do not mind that L-motor is 1 stud longer (which is causing me a bit of headaches)...I know that I'll finish my projects, but at the moment I'm researching something else than LEGO, but I think I'll redesign my Fastrac using 2 XL motors, Syn-trac will be powered by 2 L-motos...telehandler by 1-Lmotor and I'll se after that what to do with harvesters projects... Look at bright side, you will be "collecting" some more experience before you concentrate on your crane project Regards Quote
efferman Posted October 23, 2019 Posted October 23, 2019 (edited) The Partlist with the extra parts for the modified boom is available and hopefully comnplete https://rebrickable.com/mocs/MOC-30260/efferman/modified-face-shovel-boom-for-42100-r-9800/#tab_bi Edited October 23, 2019 by efferman Quote
rekreK Posted October 23, 2019 Posted October 23, 2019 12 hours ago, efferman said: The Partlist with the extra parts for the modified boom is available and hopefully comnplete https://rebrickable.com/mocs/MOC-30260/efferman/modified-face-shovel-boom-for-42100-r-9800/#tab_bi These parts are the extra? Rebrickable list is the total? Quote
efferman Posted October 24, 2019 Posted October 24, 2019 Yes, only the last part on the picture, the yellow pin with pinhole is an error. they are included in the set. Quote
efferman Posted October 25, 2019 Posted October 25, 2019 (edited) Lets go to give a backhoe boom a try Backhoe boom stick by Michael Wirth, auf Flickr edit 42100 backhoe bucket by Michael Wirth, auf Flickr Not Tested Yet. Order on your own risk https://www.shapeways.com/product/L4K4Z5TKS/backhoe-bucket-for-42100 Edited October 25, 2019 by efferman Quote
efferman Posted October 26, 2019 Posted October 26, 2019 Seems to work, but the stick looks still unfinished. Quote
Rygar Posted October 28, 2019 Posted October 28, 2019 I have a question: is it possible to install a fake V engine? Quote
The Southern Brickfan Posted October 29, 2019 Posted October 29, 2019 On 10/10/2019 at 5:18 AM, efferman said: Opinions about the new Boom? Looks much better than the official lego version, though as someone put it in a review, the real excavator is ugly, it is not designed to be beautiful, just very efficient at its job. I like the other liebherr model showing. What is the range of movement like have the extra joint in place? Quote
efferman Posted October 29, 2019 Posted October 29, 2019 In original it is to reduce space while moving. Quote
Shiva Posted October 29, 2019 Posted October 29, 2019 Regarding the slow arm/bucket movements, pneumatics are faster than the actuators,right? or? But is this model too big to use pneumatics? Quote
The Southern Brickfan Posted October 29, 2019 Posted October 29, 2019 On 10/20/2019 at 8:16 AM, suffocation said: Hi Igor, I got the DBG sprockets from Bricks&Pieces for €1.24 each. Each sprocket is driven by 1 L motor geared down 8.34:1 (12->20, 8->24, 24->40). Quite frankly I don't think I'm going to finish the model. I started building the superstructure with my spares (plus the only two XL actuators I could afford from B&P) and found it so dreadfully boring - probably the most tedious, unchallenging and uninspiring build I've ever come across. I studied the rest of the instructions and it doesn't seem to get any better, save maybe for the arm. Anyway, I got this far and it's as far as I'm willing to go. Hi Suffocation. I am trying to locate the bricks&pieces shop. Is it on Bricklink? Also, why is it I cannot see any of your photos, I just get these huge Brick not found jpgs instead. Makes following your posts a little difficult to see where you are coming from. I have been trying to find anyone selling the new longer Linear actuators, but so far with no look apart from lego.com itself, from whom I have ordered 2. Thanks Brian Quote
Bartybum Posted October 29, 2019 Posted October 29, 2019 15 minutes ago, Shiva said: Regarding the slow arm/bucket movements, pneumatics are faster than the actuators,right? or? But is this model too big to use pneumatics? Pneumatics can be as fast as you like, but you’ll need to have a faster compressor to get any meaningful performance out of them. Quote
The Southern Brickfan Posted October 29, 2019 Posted October 29, 2019 28 minutes ago, efferman said: In original it is to reduce space while moving. Thanks for that, looks very like the real thing! :) 1 minute ago, Bartybum said: Pneumatics can be as fast as you like, but you’ll need to have a faster compressor to get any meaningful performance out of them. Especially with the weight of this model, or any other large model. Also, the longer the "arm" you will be moving, the greater the forces running through the fulrcum, and hence the greater force required to run the pneumatic. Hence why hydraulics is preferred in the real world. Quote
efferman Posted October 29, 2019 Posted October 29, 2019 (edited) I have a question: Is this digging depth enough? edit: Edited October 29, 2019 by efferman Quote
The Southern Brickfan Posted October 29, 2019 Posted October 29, 2019 I think a photo of it stood on a box, with deepest position possible would help us determine if it is deep enough. Looks great so far! Quote
rekreK Posted October 29, 2019 Posted October 29, 2019 Looks deep enough to me. But a little concerned with the bucket curl, seems not able to curl out enough to get a good scoop. Quote
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