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So in the last post we'd stripped down the car and I'd shown in the video me setting up the new 3D printers. So moving straight on from that I got stuck in and spent the past week and a half absolutely chewing through about 16 rolls of PLA + filament.

You can see straight away that there are a good number of pieces involved in this first mould I'm printing off. For a quick reminder, the process I like to use is 3D print a set of single use moulds out of cheap PLA, then make a prototype fiberglass piece out of that mould as quickly as I can so that I move straight into fiberglass where I'll then do most of my later refining.I do this because in my experience, PLA prints tend to warp and so I got fed up with trying to use them as plugs and bodyworking them to try get them perfect but having them move around on me. Fiberglass is more or less fixed once it comes out of the mould, so much easier to refine and get a nice plug from.For no other reason than because it felt right, I've started off with probably the most complex shape on this car which is the front end, and all in one solid piece meant that I had 14 pieces per side on my first batch of prints, but cut a few of the larger parts in half once they started wobbling around and ended up with around 45 prints in total.

But bigger news than that by far, I've finally got my first rolls of sandpaper in the new shop, and absolutely historic moment for sure.

At last I feel complete again.

With the sandpaper and a few other tools that I had overnight shipped from Japan I was able to get starting piecing together my jigsaw puzzle.I designed it with dowels so that I would have some registration for each print to ensure alignment, and this helped for the most part in keeping everything straight. There were a few small warps in some of the prints from the colder nights but overall everything fit together like an absolute dream.

The two halves were coming together unbelievably well, but I was a little concerned about them meeting nicely in the middle so it was a slow and careful process of checking every surface was flat and level before gluing them in place.To bond all the pieces I used regular superglue with some bamboo dowels courtesy of 7-Eleven, also known locally as "hashi" and since technically they were provided for free, you could say that yeah, 7-eleven sponsored this build, not to brag or anything.

I prefer this method over plastic welding because unlike using a soldering iron to melt the prints together, the super glue bonds it the whole way along the mating surface including the innermost part, unlike plastic welding which is just on the outer surface.

And in only a few days, I had the first of the 2 sides fully bonded together and I could step back and get a first glimpse at how this build is going to look.

I honestly almost cant believe it. When I had this first piece just thrown together and I was able to step back and look at it, that was when it finally hit me how absolutely wild this build is going to be.We've all seen pictures of these cars or driven them in racing games, but to actually see these lines and this lowness in person was something else. The final car will be about 30mm higher than this (there's a 45mm gap to the floor at the front, but I added a 15mm flange all around the bottom edge) but even at this height, the top of the arch is just up to my knee. Bologna you could say.And the "door wedge" analogy is so true, I don't mean to rag on an old man, but some of the gaps under the doors back at the farm in NZ where I used to live, you could jam this front end under them to stop them banging in the wind.

I'm just getting these photos posted now for a quick update as I like to keep you guys more or less up to speed in real time even if the videos take a little while to put together. I'll have the second half of this post up soon once I've had a chance to put the photos together, but I just finished gluing up the other side last night and I can't wait to share the finished product with you all.

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Comments

Zoshiao

Those two elegoo machines work FAST! I'm also amazed at how well you seem to fit them together, guessing all that calibration paid off! 16 rolls of PLA so that's 16kg for one quarter panel, when it's all fiberglass? I can't wait to see the result!

Adrian Gonzalez

Wow that’s already some amazing progress! I’m getting Michael Keaton Batmobile vibes from those front fenders. Looks great. Can’t wait to see more.

Tofu Auto Works

I really expected there to be more warping considering the speed they were printing at and the fact that I haven't even set up my heated enclosures for them yet eh. 16kg for the whole front end, so 8kg per side. That's for the moulds with 8mm thick pieces each with around 10% infill. Once it's fiberglass I'll probably make it a bit thicker than normal just to give it some extra rigidity

Tofu Auto Works

I almost wonder if that batmobile was also inspired slightly by the group C cars at the time. And a giant jet engine

Adrian Gonzalez

You’re not wrong…same era, the designers were probably told, start with a jet turbine, mix in race cars and bat wings. I loved that Batmobile as a kid, only years later did I realize that that turbine should be one long continuous tube to function as a proper jet engine and create thrust. But the passenger cabin is right in the middle of the tube. Still cool though.

J MD

Can I just say this is SO much better than youtube. A few more car/bike creators like you here on Patreon and I’m officially leaving YT. This project is epic btw

Justin Walsh

Chris, I admit there were times during the Skygea project when I lost track of whether you were working on a plug or a part. What is the process this time? Print moulds, make a plug, make a final mould, make the part?

Tofu Auto Works

I think the Stagea was confusing because it was a whole learning process and I did everything including attempting to 3D print the plugs, then changing it and 3D printing the moulds all in the same project. For this one I realized printed moulds are the go, then a quick fiberglass part that I make my plug off, then the final fiberglass moulds and fresh part if I need it. This strategy works a lot better for any one off build because you end up with your fiberglass part straight away and if I wasn't making these to sell I could skip the whole second mould step.

Tofu Auto Works

I wish that I could just post here, being able to do photo only updates on my builds would be amazing as it's a much less restrictive way of working. I can only shoot when it's good lighting, not too loud outside, I can't listen to music, cant talk, have to work in a very clear order rather than jumping back and forth on different things. I'd get much more done if I didn't have to make videos.

Josef Fousek

Looking good, Im looking foward to the next vid or update! How it is to live in Japan as foreginer? What papers do you need to live there full time? :)

J MD

Don’t get me wrong I REALLY enjoy the video as well and appreciate all the effort. Honestly, if you just stuck a camera to an opposable arm on a dolly I would watch that after editing. Kinda like what Adam Savage does on “TESTED”

Justin Walsh

Right, I’ve been overlooking the need to make a production mould. Thanks Chris.

Tofu Auto Works

Cheers man. It's quite different here eh, the paperwork side of things can make otherwise simple things into a bit of a nightmare. Just so many hoops and rules and half the time even the people living here get sick of them and dont bother. What you need will differ person to person.