January 22, 20187 yr Hi Doug, Impressive constructions so far on this build. Will you complete this build or does 'running low on spareparts' and 'idea for future MOC' mean that this project has ended? Edited January 22, 20187 yr by Sjoemie himself Typo
January 22, 20187 yr Author 2 hours ago, Sjoemie himself said: Hi Doug, Impressive constructions so far on this build. Will you complete this build or does 'running low on spareparts' and 'idea for future MOC' mean that this project has ended? Thanks, I intend to complete this build as there still problems to over come in the rotating structure. I was just thinking about how some elements & solutions from this build can be used in any possible future MOC. Edited January 22, 20187 yr by Doug72
January 23, 20187 yr Author Tower now built and jib installed. This is constructed on the same pattern as I used for my TC 8 Tower Crane with a slight mod to allow for two pulleys at the head of the jib. Position of jib pivot and pull back cylinder achieved by trial and error and a bit of a compromise to get maximum luffing of the jib as the travel on large linear actuators is not enough. The rotating structure is not yet connected to under carriage just just the Z60 turntable slotted into under carriage 5 x 7 frame and the six wheels on the slewing gear rack. Rotates very smoothly and once battery box installed and locating pins will be able to take a load. Drivers cabin ex BWE. Aesthetics:- I don’t have enough panels to achieve a consistent colour scheme so will be mostly “two shades of grey” and yellow !!! Diamensions Length = 40 cm Width with outriggers stowed = 36 cm. extended = 42 cm Height with jib fully raised 82 cm lowered 64 cm Jib outreach = 50 cm radius - min 32 cm when luffed fully in. Two PF receivers now fitted for caster wheel drive and steering two. PF switches for outrigger movement. PF cable runs still to sort out and hide from view. Edited January 23, 20187 yr by Doug72
January 23, 20187 yr Again progress, looking good! Thanks for your answer by the way, I probably misinterpreted your previous post. Edited January 23, 20187 yr by Sjoemie himself
January 23, 20187 yr Author 3 hours ago, Aventador2004 said: I love the top section, but the bottom just seems messy with all the colors. As stated in previous post. Aesthetics:- I don’t have enough panels to achieve a consistent colour scheme so will be mostly “two shades of grey” and yellow !!! I primarily set out out to build this crane as a way of exploring technical problems and solutions which I am satisfied has been achieved. Re messy colours: in lower part, presume you refer to the under carriage (UC). As stated in previous posts I have a limited quantity of spare parts in the appropriate colours unless I break down past MOC or Lego Sets. Some parts only available in limited range of colours i.e frames in light grey, gear rack housings in red, curved gear racks in yellow so had to were used. The UC uses light & dark grey beams with red outriggers housings and the yellow 11L axles were used as they fitted where shown, two 5.5 axles back to back with a 2L axle connector caused the drive to bind as slightly more than 11L in total. If I have enough panels after upper works are finished then intend to deck the UC where possible. The MOC is quite large and taking a lot of space in my study and I have nowhere to display it - so once proved working OK and a video made, it will be dissembled it for future MOCs. =================================================================== Future MOC ? Everything is driven by one reversing steam engine with a unique hoisting chain stowage system and clutches with long drive shafts to engage all the functions. I have seen a working Meccano model of this but it would be a real challenge to build in Lego: Edited January 23, 20187 yr by Doug72
January 23, 20187 yr Undercarriage of course! The top part is great. 1 hour ago, Aventador2004 said: but the bottom just seems messy with all the colors. I just mean how it is built.
January 23, 20187 yr Wow. This is an INSANE build! Your jib looks very nice, though the dark blue panels do not fit and red does not work with the colors either.
January 23, 20187 yr Author 1 hour ago, Aventador2004 said: Undercarriage of course! The top part is great. I just mean how it is built. ???? The UC is consist of 18 - 5 x 7 frames to form the upper deck upon which all motors, caster units & outriggers have to be attached to, along with routing 4 different drive trains for the various functions 1/ Drive to 4 caster unit wheels 2. Steering to 4 caster units 3/. Extend / retract outriggers legs, 4/. lower / raise support legs All of the above withthout interfering with each other. Plus mount 5 motors , 2 PF Rx and 2 PF switches plus PF cables. Plus turntable slewing gear ring. Give a try and you will find its a very difficult task. 55 minutes ago, BrickbyBrickTechnic said: Wow. This is an INSANE build! Your jib looks very nice, though the dark blue panels do not fit and red does not work with the colors either. The jib is a copy of my Tower crane MOC which I still have assembled and on display. It had to be dark blue as not enough dark gray for the tower panels. Yes - the red outriggers are a bit glaring but when I brought them they were only available in red, I see they come in grey now, so one day I might buy a set of 4. The outrigger feet are in red to indicate a hazard. Edited January 23, 20187 yr by Doug72
January 23, 20187 yr 9 minutes ago, Doug72 said: Yes - the red outriggers are a bit glaring but when I brought them they were only available in red, I see they come in grey now, so one day I might buy a set of 4. The outrigger feet are in red to indicate a hazard. The minimization of red will make the blue and the yellow look good. Your outrigger feet logic makes sense. I guess with all those colors present now I didn't understand the direction in which you were going to take the color scheme.
January 23, 20187 yr Author 12 minutes ago, BrickbyBrickTechnic said: The minimization of red will make the blue and the yellow look good. Your outrigger feet logic makes sense. I guess with all those colors present now I didn't understand the direction in which you were going to take the color scheme. I have a grey paint marker pen so could paint the outriggers !!! As its not going on display i won't bother. If I built the under carriage again I would make it stronger by using two layers of frames one above the other with a 1 or 2L space between them to run drive axles , cable etc. out of sight. I think I will call my crane "Jospeh", the TechnicColour crane.
January 23, 20187 yr 1 hour ago, Doug72 said: Give a try and you will find its a very difficult task. Yes - the red outriggers are a bit glaring but when I brought them they were only available in red, I see they come in grey now, so one day I might buy a set of 4. The outrigger feet are in red to indicate a hazard. Then it is fine if they indicate hazard, but they just look sloppy.
January 23, 20187 yr Author 7 minutes ago, Aventador2004 said: Then it is fine if they indicate hazard, but they just look sloppy. Agree but so far have not found away to improve the way the outrigger legs are guided up & down. See separate Outrigger topic where I asked for ideas for a better solution.
January 23, 20187 yr 9 minutes ago, Doug72 said: Agree but so far have not found away to improve the way the outrigger legs are guided up & down. See separate Outrigger topic where I asked for ideas for a better solution. Use it if you need.
January 24, 20187 yr Author 17 hours ago, Aventador2004 said: Use it if you need. Thanks for the support leg idea, with a slight modification now fitted to outrigger arms. With feet on the ground the wheels are just clear of the ground. New tower now buiult in light grey and drive unit for pull back cylinder (luffing) made more secure. Hoisting cable added and reeved to so hook remains fairly level as jib luffed in or out using the Toplis system. Now to decide colour scheme for the main machinery housing ! Have plenty of 3 x 11 dark blue panels and just enough 5 x 11 panels if rob them from my BW Trencher MOC. Edited January 24, 20187 yr by Doug72
January 24, 20187 yr 2 hours ago, Doug72 said: Thanks for the support leg idea, with a slight modification now fitted to outrigger arms. With feet on the ground the wheels are just clear of the ground. The undercarriage looks way better with those outriggers, good to see it helped.
January 25, 20187 yr Author Rotating structure and jib completed: Due to limited availability of 5 x 11 panels the Main housing had to use 3 x 11 dark blue with a yellow band. Yellow curved and flat panels used for the rear. The grey deck can be lifted off by removing the four “ventilator” domes. Two PF receivers are mounted above the large battery box which is hidden inside housing, and acts as a counterweight. Access to battery switch by swinging open one curved yellow corner. Slewing gearbox and PF motor had to be raised by 3L so that the 24T gear would not foul one of the 3 x 11 the side panels. Two 16L tie rods installed to keep tower straight as it leaned forward slightly. Mounted on the under carriage and tested for slewing, hoisting & luffing and all OK. Jib raised Jib lowered Access to battery switch Next step sort out the PF cables in the under carriage which resemble spaghetti at the moment ! Now the hardest part - a video ! PS:- excuse the dull photos and lack of wall paper due its re-decorating time ! PPS:- have ordered four grey rack housings to replace the red ones. Doug Edited January 25, 20187 yr by Doug72
January 26, 20187 yr Author Conclusion. This has been an epic & massive build with many false starts and dead ends and has made a severe dent in my spare parts ! From a technical point of view it has been a success in getting all desired functions working in the space available, especially in the under carriage. From an aesthetic view - which is not my strong point - not a success as its too bulky and boxy. So further work will be limited to replacing the red outrigger housing with grey once received. Edited January 26, 20187 yr by Doug72
January 26, 20187 yr Love it - technically sound and it looks the part. These machines aren't meant to run for Miss Universe.
January 26, 20187 yr @Doug72 this project looks good and I like how the outriggers are placed for maximum support. great job!!
January 26, 20187 yr Author 2 hours ago, suffocation said: Love it - technically sound and it looks the part. These machines aren't meant to run for Miss Universe. 1 hour ago, AFOLegofan66 said: @Doug72 this project looks good and I like how the outriggers are placed for maximum support. great job!! Thanks you both for your comments, I am pleased with the technical aspects, only thing I would like to improve is the luffing range as the large linear actuator does not have enough travel. Using a pnuematic actuator posssible if I had one but would require an air compressor and servo to control the air switch. Grey rack housing due soon - had to order them from Holland.
January 26, 20187 yr It looks good, and you are fast in building, only 4 weeks ! Fine that all works !
January 26, 20187 yr Author 32 minutes ago, Wolf_Zipp said: It looks good, and you are fast in building, only 4 weeks ! Fine that all works ! Being retired and all the bad weather we have been having means a lot of time at home. Edited January 26, 20187 yr by Doug72
January 26, 20187 yr Hello Doug, I think a pneumatic cylinder for the jib is no good idea, because when you lower it , the jib will fall down very fast ! Edited January 26, 20187 yr by Wolf_Zipp
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