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 3D printed Arch bar trucks
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Author Previous Topic: Frostbite Falls Lumber Company Topic Next Topic: New York, Vermont & Northern Rwy HOn30 Quarry Line  

Graffen
Fireman



Posted - 06/22/2019 :  09:44:17 AM  Show Profile  Visit Graffen's Homepage  Reply with Quote
https://youtu.be/MZk9LcyDA9g
My good friend 3D printed my own designed Arch bar trucks. He has a Anycubic Photon, and these are printed with the new waterbased resin.
Michael Graff
"Deo Adjuvante Labor Proficit"
Swedish custom model builder.
http://sites.google.com/site/graffairbrushart

Edited by - Graffen on 06/22/2019 09:44:52 AM

Country: Sweden | Posts: 1553

deemery
Fireman

Premium Member


Posted - 06/22/2019 :  09:58:17 AM  Show Profile  Reply with Quote
The problem I've had with 3D printed trucks is inserting wheelsets (that won't fall out.) I've broken some Shapeways FUD trucks, although they do glue back together OK with CA glue. Does this resin have a bit more flexibility to it?

dave


Modeling 1890s (because the voices in my head told me to)

Country: USA | Posts: 7756 Go to Top of Page

Graffen
Fireman



Posted - 06/22/2019 :  10:06:40 AM  Show Profile  Visit Graffen's Homepage  Reply with Quote
Hi Dave, the first one cracked when inserted the wheelsets, but now they have a slot underneath to make it easier to insert them. We can add some softening agent in this resin to make it flexible though.
Too much of it will make it flexible like rubber.


Michael Graff
"Deo Adjuvante Labor Proficit"
Swedish custom model builder.
http://sites.google.com/site/graffairbrushart

Country: Sweden | Posts: 1553 Go to Top of Page

Bill Gill
Fireman



Posted - 06/22/2019 :  10:38:21 AM  Show Profile  Reply with Quote
Your truck looks good. I'm curious to see how the "journals" hold up with the metal axles turning in them.



Country: USA | Posts: 2679 Go to Top of Page

Graffen
Fireman



Posted - 06/22/2019 :  11:55:09 AM  Show Profile  Visit Graffen's Homepage  Reply with Quote
Shouldn't be a problem as this is resin.
No more wear than on any plastic trucks.
If it still would be an issue, there's always the option of installing brass inserts.


Michael Graff
"Deo Adjuvante Labor Proficit"
Swedish custom model builder.
http://sites.google.com/site/graffairbrushart

Country: Sweden | Posts: 1553 Go to Top of Page

Graffen
Fireman



Posted - 06/22/2019 :  11:56:02 AM  Show Profile  Visit Graffen's Homepage  Reply with Quote
BTW, I always lubricate my axle ends with graphite.

Michael Graff
"Deo Adjuvante Labor Proficit"
Swedish custom model builder.
http://sites.google.com/site/graffairbrushart

Country: Sweden | Posts: 1553 Go to Top of Page

BurleyJim
Fireman

Premium Member


Posted - 06/22/2019 :  12:06:21 PM  Show Profile  Reply with Quote
Michael,

If you drop one of the trucks in a jar of water, will they melt? Not being funny here, but the PLA variety of 3D print material is water soluble, and high humidity, and damp storage locations leave some very unhappy results. Is there a special 'curing' that must be done? I've abandoned water-based in favor of all ABS print media.

Jim



Country: USA | Posts: 4564 Go to Top of Page

Orionvp17
Fireman

Premium Member

Posted - 06/22/2019 :  12:24:38 PM  Show Profile  Reply with Quote
This thread represents all that is Fabulous about these Forums.

Here's a new item, relatively new technique, with a bunch of really good questions and answers and a lot of Help tossed in for good measure!

Thanks, guys, and yes, Michael, this stuff is cool! Congratulations and Best Wishes!

Pete
in Michigan



Country: USA | Posts: 6699 Go to Top of Page

Graffen
Fireman



Posted - 06/22/2019 :  2:52:21 PM  Show Profile  Visit Graffen's Homepage  Reply with Quote
quote:
Originally posted by BurleyJim

Michael,

If you drop one of the trucks in a jar of water, will they melt? Not being funny here, but the PLA variety of 3D print material is water soluble, and high humidity, and damp storage locations leave some very unhappy results. Is there a special 'curing' that must be done? I've abandoned water-based in favor of all ABS print media.

Jim


Melt? No, this is resin, UV cured.
When cured, as all resins, it is not soluble unless you use strong thinners perhaps?
In my filament printer, I use ABS+ or HIPS as it's much more stable than PLA.


Michael Graff
"Deo Adjuvante Labor Proficit"
Swedish custom model builder.
http://sites.google.com/site/graffairbrushart

Country: Sweden | Posts: 1553 Go to Top of Page

BurleyJim
Fireman

Premium Member


Posted - 06/22/2019 :  4:57:53 PM  Show Profile  Reply with Quote
quote:
Originally posted by Graffen

quote:
Originally posted by BurleyJim

Michael,

If you drop one of the trucks in a jar of water, will they melt? Not being funny here, but the PLA variety of 3D print material is water soluble, and high humidity, and damp storage locations leave some very unhappy results. Is there a special 'curing' that must be done? I've abandoned water-based in favor of all ABS print media.

Jim


Melt? No, this is resin, UV cured.
When cured, as all resins, it is not soluble unless you use strong thinners perhaps?
In my filament printer, I use ABS+ or HIPS as it's much more stable than PLA.



OK Michael, not knowing what the chemical makeup of this resin is, being water-based, I'd still test it for the same characteristics that PLAgue PLA. Somwhow it seems that water in the process could make it vulnerable. The trucks look good!

Jim



Country: USA | Posts: 4564 Go to Top of Page

Graffen
Fireman



Posted - 06/22/2019 :  6:33:13 PM  Show Profile  Visit Graffen's Homepage  Reply with Quote
The thing is, that after printing, you put the model in water to wash away all the uncured resin. My friend has a special water nozzle with rather high pressure to wash it.
Then you put it in the UV chamber to after harden it.


Michael Graff
"Deo Adjuvante Labor Proficit"
Swedish custom model builder.
http://sites.google.com/site/graffairbrushart

Country: Sweden | Posts: 1553 Go to Top of Page
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