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So what do you build, when you have 4 Hailfire wheels? an oversized GBC module!

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I had an idea to build this a while ago, and finally finished it for Brickvention 2018, in January.
However, it wasn't reliable enough, and ended up needing 2 motors to drive it.

I recently rebuild the main geartain, using better parts, and working hard to get rid of all friction points.
It now runs MUCH better, on a single L Motor.
Front loader section is an Akiyuki design, from Cycloidal Drive. The rest, including the Brick Separator down-chute is my design.

Due to the design, I was not able to use the inner teeth to drive the wheels... as the scoop would interfere.. so I had to drive it by the outer rim

This has been done in the past, by other builders, using tyres.  Somewhere along the line, I noticed that the old Samsonite gears from 1965 meshed perfectly! (The Expert Builder ones do not)

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I attempted to have the stepper/loader synchronised to the wheel, but unfortunately, I was not able to get any combination of Hailfire external teeth + Samsonsite to equal an even/repetitive interval.
Turns out that it takes 7 revolutions of the Hailfire, before the same tooth on the Samsonite match up again!

So.. that does mean, that occasionally, it'll feed in a ball at exactly the same time a scoop passes... and while most of the time, it bounces back into the main wheel.. sometimes, it bounces back, and spills.

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There is a small collection point for such spilt balls

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The Scoops are a simple build, and are held in place via friction

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the Hailfire wheels are supported by 1L liftarms on an axle, and there are 4 rubber wheels at N/S/E/W, that the Hailfire leans against, to run smoothly

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The drive-train feeds up and down each module - with the motor attached at Blue, since it's at the mid-point.. At the bottom of yellow, it connects to the front loader section.

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And since it's SO big, I needed to build it modularly!  So it all comes apart easily!

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Looking forward to running this improved version at Canberra BrickExpo next month!

Oh.. and apart from the depth.. it is actually GBC standard! :)

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14 hours ago, RohanBeckett said:

Oh.. and apart from the depth.. it is actually GBC standard! :)

Yeah, all of my modules are too - they're GBC standard apart from where they deviate! :-)

I look forward to seeing it run all weekend.

Owen.

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Thanks.. I know it's not an easily-reproducible GBC (no way I'm doing instructions!)  But I'm happy with how it turned out... will probably pull it apart in a year or so, and use the rings for something else

 

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It looks like a lot of work to build and seems to work nice. If you take it apart sell the android wheels and buy a new car :)

Edited by Berthil

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