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    GBC, Technic mainly construction vehicles, EV3, Boost, some Star Wars, designing


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  1. HRU_Bricks

    [GBC] Akiyuki Ball Factory

  2. HRU_Bricks

    [GBC] The Akiyuki Project

    I am building one that is loosely based on Akiuki's robotic arm that ran on a track. the build is 95% done with the programming to do. It is a 4 axis robot arm that only uses 1 Ev3 brick. I do plan to at least upload the design files when it is done, we will see if I do instructions or not, not sure yet. After that I plan to do another 4 axis robot arm along these lines
  3. HRU_Bricks

    [GBC] The Akiyuki Project

    Thanks @Ankoku for the tag. @Innocity Lego pneumatics can be a little fickle to get right as well as wear out really fast, that said they can also be a lot of fun to work with. I do like the build you have made and it is on my build list too (albeit it down the line a bit). Looking at what is happening in your video and what you have mentioned, the Lego pumps cannot keep up with the air volume your require to run the machine smoothly. As Ankoku said air tanks will smooth out peaks and troughs of required air volume and you will also need more Lego pumps (8-12) as well as a on off pressure switch like I have in my build. The auto switch will control the pressure build up in the system and the tanks will smooth out the demand especially when the structure rotates (highest demand). The rams you are using require a lot of air and the 2 tanks would work. There is a one big issue with GBC pneumatic builds and that is the pumps wear our really fast and I have found that the rams need to be pulled apart and re-greased after each show. I have worn out 2 Blue 6L pumps and then decided to not use them during Lego shows or for large builds ( like yours). Instead I use small scuba cylinders regulated down to 1.6 to 1.9 bar. For my Ball Cleaning Machine (Mechanical version of Akiuki's) during Bricktober 2019 Lego show I used a 200 Bar 2L a scuba tank to run the machine. Each 1x 2 Liter tank lasted 8 hrs. Another alternative I am looking into is a small 3-4 Bar air brush compressor. They are about $100AUD on ebay, have a small air tank and are quite (apparently). Hopefully that helps @9v systemAs an FYI the one I built didn't drop a ball that I can recall during Bricktober. It did stop once but other than that it was the most reliable module
  4. It is finally complete! 100% mechanical. It is being displayed at Perth Bricktober this weekend (11 & 12 Oct 2019). A long journey and glade it is done. Now onto the Studio file.... Video --> Note there was a drone flying around taking footage
  5. HRU_Bricks

    axle sorter WIP - need advice

    I was actually looking to build the Akiyuki axle sorter but not any more this one is sooooo much simpler and cheaper to build. I would modify this one to have the catching trays lower for the longer axles so the axles can bend around the arch as they fall instead of dropping on the trays. Sticking to the original is good to start with but there is always improvements. Not even the Lego sets stay standard around my house!
  6. HRU_Bricks

    axle sorter WIP - need advice

    @Dan Kressin I just cam up with the same answer as @letsbuild after looking at your Studio file on Brick set before I scrolled down. 2 out of 2 that has to be the right answer Thanks for posting your work on the Studio file, when I saw your post on FB I knew I had to build it! Good luck with the gears, they maybe a challenge. My recomentations is to work from the motor out to the outside of the models drive system and SAVE often to save the heart ache ( I have done a lot of models now and found this to be the best way)
  7. HRU_Bricks

    42100 Liebherr R9800 Excavator

    To get back onto why we all here... The build so far is really good. It has the "Technic" feel which is a little surprising because it is a programmable set with position controlled motors that often negates the need for gearing and more complicate construction methods. There are a few pin choices that are interesting with axle pins being used as locator pins when standard black friction pins would give better stability in the frame. The set is worth every cent so far and I am only just beginning. It would not be too difficult to modify it for PF and remove the Control Plus parts for other builds (my intention).
  8. HRU_Bricks

    42100 Liebherr R9800 Excavator

    Any way I am just happy I have one and can build it this weekend, I can run it with Buzz Wiz app for the next few days. get over it
  9. HRU_Bricks

    42100 Liebherr R9800 Excavator

    Lastly, just don't buy the set until the 1st of October
  10. HRU_Bricks

    42100 Liebherr R9800 Excavator

    1. Sets delivered to retailers that DO have an embargo have a big sticker indicating not to sell before and got retailers follow that becuase they do not want trouble with Lego 2. The 42100 had no embargo on the sale as detailed by the retailers I saw today to find a set that arrived. 3. Lego has a massive logistical challenge to have stock on shelves in shops at the same time on line releases. 4. Retailers have discussed with Lego to bring online release dates and stock on shelf closer. 5. The on line Lego released on the 1st that's when they want to release the app
  11. HRU_Bricks

    42100 Liebherr R9800 Excavator

    There is no embargo on the set. Stores are receiving them this week and can sell them when they are delivered. I picked mine up today and asked and they said there was NO embargo. Don't get upset with Lego they have said the release date is Oct. Use the Buzz Wiz app and get on with life, you are one of the lucky ones that got to build it early! Lego is also about the build remember
  12. HRU_Bricks

    42100 Liebherr R9800 Excavator

    Remember he probably had a Lego specific release for the app. Have you tried the buzz wiz app
  13. HRU_Bricks

    42100 Liebherr R9800 Excavator

    Sariel's exclusive first review of the Technic Liehberr 42100! I liked the set and now want it even more. The build itself have the haul marks of a good Technic build (complexity, function, new build techniques) with the added bonus of Control Plus.
  14. HRU_Bricks

    42100 Liebherr R9800 Excavator

    And it will 600 on sale in no time... Big-W it'll be even cheaper. The 4x4 was on sale a few weeks after it came out
  15. Major building is complete! Well hopefully The cleaning press module is done and came out very different in comparison to Akyiuki's original. It kind of feels like it is missing something but cannot put my finger on it..... The machine is running really well with very few balls coming and no major issues for the 1 hr I did run it. The consumption of air was not as high as I first though but still very high if you considered to use Lego pumps. Currently with an operating pressure of 1.55-1.6 bar the consumption is about 45 Ltr/hr. If it was not for the Powered up section it would be complete. Video -->