3D printed DD rotary from Norway!

[Tattoo junk]

Hi,


Cool machine!


This is my first post on this forum...i thought this might be usefull in your process.
i think the sanding part is a waiste of your time, not good for your hands and everybody hates sanding i think..


Iff a polis or sand machine will melt it you could try this:

i know allot of hardware stuff and toys and car parts are polished by simply throw it in a bucket with the right material and it get polished by movement, you just need to find out what polish your printed material the best...


Also works on aluminium
it will never melt your product as it never heats up
And you can polish a few machines at a time

one material at a time


You could try:
#Glas marbles
#Hardend bearings
#nuts
#your toe nails
#whatever


A small cement/concreed mixer you see used by construction workers will do the trick for sure you can find these cheap.
they are pretty quiet acctually iff kept clean and lubed.


You can make a cover on top of the bucket and the noise should be minimal.


or you could just expiriment with a plastic bucket with a cover with a material and shake it
I hope i picked the right words as my english is not that good

[iden]

Funny you should mention that!
Because I experimented with tumbling just a couple a weeks ago!

But the thing is, when a print is finished, you´ll have a pretty rough surface, way more that say e.g molds. I could print in a higher resolution, almost 3times better than what I print now, but that would take ages.
It´s faster to file, sand and polish, and now I finally got the hang of it!
Polishing works fine if I move the part around a bit more than metals, it just takes a bit longer to get the "glassy" feel to it.

In the future I´ll invest/or make a tumbler for polishing small parts, but first an upgraded 3Dprinter is on the top of the list!

I also experimented with some carvings, looks like I can do something custom with that.

pla-stik.jpgpla-stik-blueprint.jpg

[fkirons]

Printing at higher resolution makes the whole print stronger and easier to work with. The lower the resolution the more chances you have to get split layers especially when applying force to the part. Looking good man.


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[iden]

Printing at higher resolution makes the whole print stronger and easier to work with. The lower the resolution the more chances you have to get split layers especially when applying force to the part. Looking good man.


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Thanks!

Yep, I know, right now I´m printing with 0.25mm layer and have a 0.45mm nozzle, and with a bit higher flow, lower speed and right amount of cooling it works good, no splitting vice etc.
PLA is easier to work with that way, you can see a bad print right away, that will split.
I´ve done some stresstesting on some of my prototypes, with force, and 6months with tattooing, and that was before I got my printer running optimal. The frames are printed with solid overlapping infill and 1.35mm wall.

[fkirons]

Thanks!

Yep, I know, right now I´m printing with 0.25mm layer and have a 0.45mm nozzle, and with a bit higher flow, lower speed and right amount of cooling it works good, no splitting vice etc.
PLA is easier to work with that way, you can see a bad print right away, that will split.
I´ve done some stresstesting on some of my prototypes, with force, and 6months with tattooing, and that was before I got my printer running optimal. The frames are printed with solid overlapping infill and 1.35mm wall.

Solid Infills is the way to go. these guys may take a long time to print but they'll be worth it.
Have you tried acetone to give the printing a smooth finish. If you do it right it may look like you tumbled the part and polished it.

I've noticed that the different colors have different strength and finish.

[iden]

Solid Infills is the way to go. these guys may take a long time to print but they'll be worth it.
Have you tried acetone to give the printing a smooth finish. If you do it right it may look like you tumbled the part and polished it.

I've noticed that the different colors have different strength and finish.

Actually I´m printing in PLA, as in the name of the machine "PLA-stik"
And acetone doesn´t bite on PLA as it does on ABS, there is something else that is used, but I can´t remember the name and have no idea where to get it.
ABS react to several chemicals, but PLA seems to take almost anything, except too much head i.e boiling hot water.
IMO the PLA is better as material for this kind of construction, its harder and its easier to post-process, ABS tend to softly bend and finally break. And of course, there is the handmade-feel to it that matters to me, 3D printing is kinda like molding brass/steel frames for coil-machines, you have to do something to it afterwards..

Yes, different colours have different strength, I find the solid ones the best and easiest to print/process.. The transparent ones can be a pain in the ass sometimes.

[fkirons]

Actually I´m printing in PLA, as in the name of the machine "PLA-stik"
And acetone doesn´t bite on PLA as it does on ABS, there is something else that is used, but I can´t remember the name and have no idea where to get it.
ABS react to several chemicals, but PLA seems to take almost anything, except too much head i.e boiling hot water.
IMO the PLA is better as material for this kind of construction, its harder and its easier to post-process, ABS tend to softly bend and finally break. And of course, there is the handmade-feel to it that matters to me, 3D printing is kinda like molding brass/steel frames for coil-machines, you have to do something to it afterwards..

Yes, different colours have different strength, I find the solid ones the best and easiest to print/process.. The transparent ones can be a pain in the ass sometimes.

Yeah. PLA is more stable and easy to work than ABS and it doesn't require having a heated build plate.
I never tried the acetone process but I saw a video on YouTube.
Tip I discover the other say after several failed rafts: cover your build plate with capton tape and heat it up with a blow dryer until is about to print. Be careful not to melt anything in the printer especially if your build plate is not glass or metal. Prints stick so good!



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