2/21/2024 0 Comments Lego nasa crawler![]() A motor in four corners might deal with the torque problem, but gearing will still be needed to slowly start the stack moving. It's going to be tricky – while a standard motor could drive the four tracks via some gearing, there is the issue of torque and causing a destructive twang. The next step will be to fit motors and, annoyingly, while the tracks will move, the designer did not build in the possibility to easily motorise the set. It was a one-man job (and thanks was given to the glue holding that red tower together) but, surprisingly, the crawler supported the weight, even with Saturn V added back into the mix.Įvery morning, a sad little pile of bricks was expected, but the set remains intact despite the weight of the Saturn V and pad combo pressing down on it. First, the Saturn V was removed from the pad, and then entire structure lifted and placed onto the crawler. Hopefully being able to show the NASA Crawler-Transporter's capabilities will help with gathering the support needed to reach the next milestone.Once complete, there was the final, heart-stopping step to take. As a taster here is one of the completed double track drive units. I should be able to update in the next few weeks with the completed build. After a weekend of sorting through all my spare parts I have placed orders for all of the pieces I need for the build. I have also decided to incorporate the interior I proposed in an earlier update. Once I had finalised that part of the design the whole model was rebuilt in LDD using parts and colours which are currently avaialble. I've been working on making this up for some time, I started by building one one of the four double tracked drive units and making up one corner of the crawler body to workout the best way of connecting the drive unit including the four steering rams connect to the sides and underside of the crawler. I designed the crawler in LDD and with 2500 plus supporters I think it's time to show that it can be made up in LEGO. ![]() Thank you to everyone who has supported this project and I please spread the word and see it it can at least be considered by LEGO.įirstly thank you to everyone who has supported this project. The model is now complete and there are no build issues with the final build. The control room has been redesigned and now is a much closer representation of the actual Crawler and also has windows The Machinery space is wider and has windows, banks of ventilation fans, a larger triangular hydraulic fluid tank and instrument panelsĤ. Fuel tanks have been added, they are in the middle of the open sections at the front back of the Crawler.ģ. This turned into quite a major rebuild but I took the opportunity to refine the build and add some more detail.Ģ. Thank you to Blue-Blackfox for spotting the error. You can see them in some of the earlier updates.Ībout a month ago Blue-Blackfox queried the overall width of the Crawler, although I thought I'd calculated the width correctly I had made a mistake from the very start of the project and it was too narrow, the model needed to be 4 studs wider. Directional stability comes from the four 'hydraulic rams' which attach the track unit to the main body of the crawler. The load is passed through the flat plates on the top of the unit. The cross axle's main purpose is not structural, it locates the track unit to the main body. The real crawler has driving cabs at both ends to avoid having to turn too much. One note about the complete build is that with eight tracks pointing in one direction the Crawler only wants to move forwards and backwards, it does not want to turn - at least not on carpet. I am still looking at the best way of providing free building instructions for the whole Crawler so please don't invest into the build until its all available.Īs I have said in a previous update the track is loose - not to the point where it can come off but it does sag when you lift the model up this actually is a benefit as the loose track means that the top of the tracks move in a wave and look like they have a lot of weight. Below are the building instructions for one of the track units used in this project.
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