3D printers...who has one?


Turbocharged400sbc

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problem is that they would all need "bodywork" to sand out the layers/sqezeout

something like that would be good for resin printers
 
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Lord Tin Foilhat

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Yeah it would need a final sand/spray or acetone smoothing to get the layered look gone
 

zenriddles

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I've got a sandblasting setup. What about a sanding followed by a walnut shell blasting or some mild media like that?

These things really would need to hold up to life on a truck wheel, so would need to be made out of some fairly robust material.
 

Bob Hope

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I've got a sandblasting setup. What about a sanding followed by a walnut shell blasting or some mild media like that?

These things really would need to hold up to life on a truck wheel, so would need to be made out of some fairly robust material.
He’s saying sanding....with sand paper. Not media blasting. Sanding them smooth and painting them would hold up the best.

I don’t see center caps as a high wear item. Most are made of plastic anyways.
 

zenriddles

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He’s saying sanding....with sand paper. Not media blasting. Sanding them smooth and painting them would hold up the best.

I don’t see center caps as a high wear item. Most are made of plastic anyways.
I knew what he meant. I worded my sentence poorly.

After a CONVENTIONAL SANDPAPER SANDING to best appearance reasonably possible, after the conventional sanding, would there be any benefit to a mild media blasting?
 
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Lord Tin Foilhat

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I knew what he meant. I worded my sentence poorly.

After a CONVENTIONAL SANDPAPER SANDING to best appearance reasonably possible, after the conventional sanding, would there be any benefit to a mild media blasting?
On way to know is to try. Not much info out there in that regards
 

zenriddles

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I would be willing to put up for materials to see what the results would be. Don't care about the inside appearance, outside must be smooth and silver with black center.
 

Turbocharged400sbc

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id say some media tumbling with the vibratory units some water/lubricant and suitable media would polish it up


but id say sand and use high build primer with a few hand sanding with a couple topcoats would do just fine
 

Mr_Roboto

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Yeah I don't see it as a big deal to make in all probability.

Any idea why I am getting high spots like this? it is driving me nuts since I think it is causing layer shift.

IMG_20210324_082606518.jpg


Also first prints on the TronXY. Just some basic pla and a quick disconnect for my Dillon.

IMG_20210318_222451748.jpg
 

Mr_Roboto

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I'm going to redo my heated chamber to add the Tronxy then I think I'm going to swap to PLA and low infill and take a shot at this. The goal is to convert it into aluminum. I have about 6 hours of CAD time into it, so we'll see if it's viable or not. If you notice I didn't do anything with the latching part because I was getting lazy about the idea of having to add cores to this.

bottom_rest.png


top_rest.png
 

Mr_Roboto

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sw 17. I like 07 better so far there doesn't seem to be a ton more this does that's remarkable so far and it's lots busier.

I dabbled in FreeCAD and it wasn't great. I just signed up for a fusion 360 acct I need to try. I have done Inventor in the past as well and it was definitely okay.
 

Bob Hope

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360 is where it’s at. It’s also nice to be saved to your account so you can access from multiple machines.
 

Mr_Roboto

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The new limits kind of suck unless you are paying from what I understand. I need to make some alterations to downloaded stuff so it is worth a shot.

SW is great it took me 5ish hours to make both pieces including me redoing the top 3 times :rofl:
 

Bob Hope

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I haven’t noticed anything missing when modeling on a personal free account.
 

Mr_Roboto

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I was having trouble with weird quirks on Linux. Maybe that was my issue.

Also, looking good here on the test fit. Top printing now.

IMG_20210325_203831709.jpg


IMG_20210325_204030015.jpg
 

Mr_Roboto

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Oh dear God that's brilliant I cannot find a steady rest for my leblond Regal
How big of a lathe? I was talking to someone else on another forum and they were just thinking about printing one 100% and giving it a shot. I'm thinking I like the comfort of aluminum personally but If you're ballsy. I can't decide if the failure mode of it would be catastrophic or not if it happened...............
 

Turbocharged400sbc

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15x40 but it'll swing over 16.

I'd have to figure that thing would be pretty f****** strong. Only thing you could do to make it any more homogeneous would be post-treatment or enabling ironing between layers.

All of the steady rest forces basically upward and towards the rear of the machine I don't think you're going to have a problem if anything it might move a little bit but you should be able to compensate.
It's better than not having a steady rest or using a rigged up set up with two by fours
 

Mr_Roboto

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15x40 but it'll swing over 16.

I'd have to figure that thing would be pretty f****** strong. Only thing you could do to make it any more homogeneous would be post-treatment or enabling ironing between layers.

All of the steady rest forces basically upward and towards the rear of the machine I don't think you're going to have a problem if anything it might move a little bit but you should be able to compensate.
It's better than not having a steady rest or using a rigged up set up with two by fours
I was more concerned with having a piece of stock whipping around if it broke. I mean hell, I'm thinking if you believe it'd work going totally the hell ghetto and making some ABS fingers or something. :rofl:

I do have a fuckload of cam followers in the basement though, now that you've said it (or I have whichever.)
 

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