doug72

Take a look at this lift which is self reversing using a worm driven turntable & link arms. If you can drive the lift from your motor continuosly this might be suitable. Video https://youtu.be/hlLElrL-vBE .

Some minor changes made to the dimensions:- Length, Width & Height to maximise cubic studs which are now 31 high x 20 long x 16 wide = 9920 cu. studs. Lego warning stickers & lights added front & rear. Larger pully wheel now fitted which gives exactly 31 studs height. New studs check frame made.

Thanks, took awhile to to achieve. Dimension frame. Frame built that just fits over my Side Boom Pipe Layer model. Showing that it is well within contest rule limit of 10,000 Cubic Studs. With boom, control platform, counterweight & hook stowed. The dimensions are:- 18 wide x 19 long x 29 high = 9918 cubic studs. Model inside test frame. PS image has close camera distortion. IMG_8636

Tried using axle connectors & axles to build a triangular boom but was not possible as the angles on connecters don’ twork even when using a no. 3 type.axle connector. ========================================== Now built a new triangular boom with diagonal bracing, using only Technic parts. Top part is a fly boom with pulley & lights mounted on it. Boom height when vertical is now 29 studs which gives me a bit more room to play with for the other two dimensions. Measuring beams made for height, width, length. New images:- Front view IMG_8629 Side View IMG_8630 Measuring beams IMG_8631

I will try,

Jim, Thanks for the clarification. I will stick with the “Technic” Boom solution. Re Original Boom. I put the top works with the 2 pulleys somewhere safe and just spent some time trying to remember where I put them !!!!!

Only has 1 pin hole & 2 axel holes. If the original boom is OK I can soon fit it again.

Side Boom Pipe Layer Update:- Following comments about my build resembling a City set I have decided to change a few sections of my Side Boom Pipe layer using Technic parts. Side Boom:- Original non Technic boom removed and replaced by a 100% Technic version. Took a while to get pivot points correct to get full retraction to vertical & to operating positions, now achieved. Boom is still 30 studs high when stowed vertical. Drivers cabin Now removed and driver now sits in open air !! Platform retracts as before but should I still add side rails for safety ? Dummy Engine Block to be retained as the exhaust pipe is a technic Part. Diamensions remain the same i.e. 30 x 16.5 x 20 = 9900 cubic. studs. New Images:- Front view of new Technic Boom with floodlights repositioned. IMG_8625 Side view of Technic Boom & Counterweight in operating position. IMG_8626 New Boom stowed vertical & Counterweight Stowed IMG_8627 Rear view of boom & engine block. IMG_8628

Thanks for your comments but I don’t have those parts. The boom lights are made from plate 1 x 2 with horizontal hole p/n 18677 / 28809 with 4 round transparent flat 1 x 1 plate I have also moved them further apart from the boom. MB;_ Cabin removed, now an open air elevated control platform. -------------------------------------------------------------------------- Thanks for your comments but I don’t have those parts. The boom lights are made from plate 1 x 2 with horizontal hole p/n 18677 / 28809 with 4 round transparent flat 1 x 1 plate I have also moved them further apart from the boom. Thanks for your comments but I don’t have those parts. The boom lights are made from plate 1 x 2 with horizontal hole p/n 18677 / 28809 with 4 round transparent flat 1 x 1 plate I have also moved them further apart from the boom. Boom Lights:- IMG_8617 Cabin removed now open air platform only. IMG_8624 Engine Housing IMG_8623 Looking for ideas how to use Technic only for engine housing only.

One of Jim's contest rules state that some studded parts and panels are okay, but model team is not permitted. My build is Mostly Technic parts with minimal other parts. I could remove the dummy engine and have the vehicle use a long electrical lead as do some large construction machines. I could also remove the cabin and have a mini figure use a remote device to control it ! The recent TECHNIC 42141 set use a mixture of technic with minimal other parts. Perhaps Jim can rule if my build infringes the contest rules.

Progress update. Added dummy engine housing which powers the hydraulics and tracks. Added drive & boom lights. Added hand crank to speed up the rope drum for the boom hook hoist. Boom cabin moved over by 1L to stay clear the boom. Boom drivers cabin improved and two mini figures added. Lego Warning stripes added to counterweight. Fold down ladder added for access to the boom cabin, Ladder can be swung up to keep within stud limit. IMG_8614 New measurements :-30H x 16.5 W x 20L = 9900 cubic studs

I was unable to get a suitable pivot point for the boom which has to be on the rotating section, due to parts touching the tracks etc. So Reverted to fixed a under carriage. New progress. Added dummy engine housing. and a hand crank to speed up the rope drum for the hook hoist. New measurements :- 30H x 16W x 20L = 9600 cubic studs --------------------------------------------------------------------------------- Thanks Jim for the increased number of topics on the home page which is much better.

Track units improved:- Just like the real machines both track units can be removed ready for the transporting the upper sections to another site. Some side boom machines can jack up to allow a low bed trailer to back up and carry the main unit. Also helps keep the load weight down. Previous track centres were 14 L to get even tension of the track. Tracks are now 15L long with 24 T gears at each end. Track in contact with the ground is supported by by a 11L Flip Flop beam with a 11L black beam to support the upper track run. Removable Track Unit IMG ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Originally I wanted the upper section to rotate and now building a mock up to see if this is feasible and still keep all the other functions the same.

Looks good, and similar to a real rail turntable I have Recently broken down the previous version I built I will build your new version and test it. Doug72

MK 2 version consigned to parts storage New Engine casing built using Technic parts. Model is non rotating but could be made to be so by HOG. Dimensions as per contest rule i.e max 10,000 studs. Model with boom, counterweight & cabin stowed equals :- 30 High x 16 wide x 20.5 long = 9840 cubic studs. Images:- Counterweight & Cabin extended. IMG_8601 Boom vertical and Counterweight & Cabin stowed for contest diamension check. IMG_8606 Boom side view IMG_8603 Boom, counterweight & cabin swung out to lift pipe. IMG_8604 “

There is no motor in the engine housing all functions are HOG There is no room at this scale for a motor or battery box. My version is a freelance rendition based on a Volvo side boom pipe layer, which uses a hydraulic cylinder to move the boom in & out. Most machines use wire rope cables to move the boom. In the future I might make a larger scale version, I have a suitable under carriage with motors from an old project, just needs to top part building.

Engine Housing:- Does this look OK, it’s 100% Lego Technic.. I only have Red curved panels. Model Cubic Studs = 9900. Photo now embeded :- IMG_8598

Thanks for the sugestion, but its very hard to represent an engine using only Technic parts and would use up my Cubic Studs. Perhaps Jim can rule on this.

MK 1 version Progress:- Drivers Cabin:- Lego train part removed as it is too big at 6 x 6 x 8 studs. Rebuilt Engine housing installed 6 x 8 x 5L but still too large. A smaller engine compartment at 6 x 6 x 5 looks better IMG_8597 Drivers control cabin built and is supported by 4 swinging arms so the cabin can be raised to working position or lowered to the stowed position. Just need to find a suitable ladder to allow access to the cabin. With boom vertical, Counterweight & Drivers cabin stowed inboard = 30 high x 20 Long x 16.5 wide = 9900 cubic studs & within the contest rule.

Progress :- Counterweight added:- Manually operated and swung out into operating position. Counterweight stowed by hand to keep within Cubic Studs limit when not operating. IMG_8592 IMG_8593 Drive to boom linear actuator altered so manual controls are now situated equally at rear of machine. Hoisting rope altered to pass under the stowed counterweight. Drivers cabin added (ex Lego train) Next step, build the engine housing.

Thanks, I have yet to figure out mounting the counter weight but it should be possibly & could use an empty small battery box. I should have enough cubic studs spare .

Inclined to agree with you, model with 5L track links is begining to get very chunky and hard to stay within the 10,000 cu studs rule. I can easily revert to the Mk 1 version.

[TC22] Side Boom Pipe Layer Mk 1 Progress Update. IMG_8586 Now fitted with double tracks using 3L track links. Boom length increased by 2L The two belts of track links each side tend to catch and separate. Position of manual drives for boom & cable drum repositioned to be more accessible. Learnt a lot building the Mk 1 version so decided to re-build with 5L track links. ———————————————————————————— [TC22] Improved Mark 2 Side Boom Pipe Layer. IMG_8590 New under carriage built using 5L track links and have managed to get good track tension and support between the sprocket gears. Hoist Drum re-located and hand operated by the 12T DBG gear as shown. Boom drive to linear actuator. Uni coupling replaced by 3 12t gears & operated by hand. Boom length increased by 6L Next step build the body work & cabin for the driver & dummy engine housing. Tracks are hand powered by pushing but it may be possible to add an M motor / PF Rx & a small battery box.

It will be a bulldozer body type, Correct the gears could catch on the track,

So far no problem , there are 2 studs on the top of the boom.