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The Megazone 23 Garland By Yamato Thread


Renato
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On 3/22/2020 at 2:01 PM, Desert_tiger said:

Not sure if this thread is closed or not. Due to the "human malware" going around and being quarantined in home, I had some time to pull out my Yamato Garlands and try to fix them.  I decided to go ahead and design my own swing arm to replace the diecast ones with the broken pin (I just had a hard time swallowing the $20 one on shapeways).

Busted out the ol' micrometer, took some measurements, fired up TinkerCAD, and surprisingly I was able to get to a ~75% solution on the first 3d model (and I'm no CAD specialist by any means).  I then went through several further small iterations until I came out with one that made all the clearances.  There is still some room for sanding to fit the curvature of the rest of the Garland body, but this final version should fit the bill right off the printer.

Now, on to the disintegrating shoulders (*sigh*)....

several_Iterations.jpg

Pop_this_out_first.jpg

Pin_comes_out_now.jpg

TinkerCad_shapes.jpg

It_Fits.jpg

printing.jpg

All_Done.jpg

I recently just got a risen printer and have been doing some awesome builds with it. If I can I'm gonna dig around and see if I can find my old busted garland if you ever decide to share those files sometime. Feel like off my printer I can get it to fit just right with almost no issues and have a working and displayable unit again.

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Here's my attempt at redesigning the swing bar and shoulder.  Jesus is this toy poorly engineered....I'd upload the STL files, but as I was putting together the left arm, the pin broke off in the same damn way that the original piece did.  It just has way too much rotational stress on that point.  The swing bar really needs to be cast in metal.

The shoulders are annoying in that they are all friction fit, and friction fit parts are hard to get right on a home 3D printer.  My printer is about 7 years old with a 0.3mm precision, but the difference between something friction fitting and not friction fitting is somewhere between 0.1 and 0.25mm.  So I can eventually get this, but it is a very trial and error process.  So the arms are able to hold fine raised from the side but not being held straight out in front (holding a gun, for instance).  This also might have to do with it being next to impossible to disassemble the shoulder without breaking tabs of some sort.  There is a screw underneath the front circle bit on the shoulder(green), but everything is so tight, it's hard to notice that while trying to take it apart.  I ended up breaking the cylinder off on both my shoulders thinking it was just the peg glued in that was holding it.

Still, I think I'll be able to have it transforming tomorrow.  I just need to reprint the left swingbar, then I'll probably post more pictures and the STL files if anyone else wants to take a crack at them.

20200816_222744.jpg

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So here the garland is back in action.  As mentioned above, because of the permanent way Yamato attempted to assemble the shoulders, it is very difficult to get them apart without destroying some of the structure that keeps everything tight.  The replacement swing bar makes me very nervous, as even in ABS I can easily snap the whole thing with my fingers.  I'm curious to see how Arcadia dealt with this with the new Garland. 

The two engineering problems I see are that the entire weight of the arm is supported only be the swing bar and a magnet.  And by swing bar, I mean a 1mm diameter piece of plastic or metal.  And both of these are sort of towards the bottom of the wheel. 

Anyways, here are the STLs if you want to give it a try.  The shoulders are the same on each side (at least mine were), but you'll need to mirror the swing bar.

 

GarlandRepaired.jpg.85240b219b288f584d02af8ddc158c73.jpg

shoulders_topdown.jpg

swingbar_upclose.jpg

leftshoulder.STL swingbar.STL

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  • 1 month later...
  • 1 month later...
On 10/6/2020 at 10:54 AM, fenrir72 said:

Late in the game but anyone here know how to get a replacement of this?

 

The shoulder housing just broke off.

 

Thanks in advance.

20201006_233558.jpg

I realize this was a while ago, but the shoulder file I posted are recreations of exactly this part.

Getting it tight is another issue, and one I never completely solved.

(or is this the new Arcadia Garland that this happened to?! 
:O )

Edited by SpaceCowboy
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  • 2 weeks later...
On 10/7/2020 at 1:22 AM, jenius said:

My God, what did you do???

That looks like the kind of shattering you see when the factory forces the peg in rather than building the assembly around the peg... Hope we're not all doomed.

 

It just broke. Really! :shok:

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On 11/25/2020 at 8:17 AM, SpaceCowboy said:

I realize this was a while ago, but the shoulder file I posted are recreations of exactly this part.

Getting it tight is another issue, and one I never completely solved.

(or is this the new Arcadia Garland that this happened to?! 
:O )

The old big scale 1/5 2008 Yamato.  Serves me right for buying it at Y 10,000 + preowned. Just transformed it once to robot mode and kept it that way then 2 weeks later, the arm fell off with the crispy parts falling apart in tinee tiny pieces.

 

I was watching out for the metal pieces breaking then this just disintegrated. Thank God my VF-0 Phoeneix Yamato's shoulders are still whole. After this, not touching another Yamato EVAH!

Edited by fenrir72
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yeah, I think the Yamatos are over hyped on this forum.  They look great, but they are so fragile compared to other offerings that they aren't really a good purchase considering how much they cost vs how likely they are to break (and I own a _ton_ of yamatos).  

The Garland in particular was never great build quality to begin.  I remember the first one I got I had to reglue the piece that held the cockpit/handlebars on because it just popped off (the tiny gray piece on either side of the dashboard).  I stupidly bought 2 more and kept them in the box and have finally sold them just recently.  I've kept my 3d printed shoulder version as a desktop toy, though I question whether I will ever transform it again, as it will most assuredly break.

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I have next week off, I'll see if I can't print off a set, but I nearly guarantee you your shoulders will be loose once you fix it.  Maybe others have had better results, but I find separating the shoulder pauldrons to be extremely difficult without breaking them (they are glued together), and once the peg is snapped off, you lose a lot of the tightness that the pauldrons used to secure the shoulder to the body tightly.

The swing bar is just stupidly designed.  I think you would have to form this in steel or something to prevent breakage.  ABS is definitely not strong enough to prevent a millimeter diameter rod to not break with all the torsion that is applied to the arm during transformation.

Nevertheless it shouldn't take long to print these parts as they are so small.

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