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[marcok625]

attention that while having the double extruder with supporting material that melts in water like the pva, it is not so easy to manage this material, because it is strongly hygroscopic and does not stick well to the plate, the prints must be cured a lot in the various parameters. once printed the piece it is necessary to leave it in water a lot of time, even days to make sure that the supporting material melts, also changing the water not to saturate it. I no longer use the pva too complicated, use or breakaway ultimaker or pla, you have to remove it by hand but it is much more comfortable and simple, the pva will use it if I have to make supports in spaces hardly reachable.

 

[TECNOMODEL]

attention that while having the double extruder with supporting material that melts in water like the pva, it is not so easy to manage this material, because it is strongly hygroscopic and does not stick well to the plate, the prints must be cured a lot in the various parameters. once printed the piece it is necessary to leave it in water a lot of time, even days to make sure that the supporting material melts, also changing the water not to saturate it. I no longer use the pva too complicated, use or breakaway ultimaker or pla, you have to remove it by hand but it is much more comfortable and simple, the pva will use it if I have to make supports in spaces hardly reachable.

I always carry my experience, the support was eliminated in a bath of water and acid, in 4 hours dissolved everything.
printer stratasys

 

[AlessandroC.]

if the printer uses a different material for support this is then eliminated through a bath in acid and do not need manual operations.

I honestly never tried this system.
when we were proposed, it was rejected for several reasons: the main was the high cost of the machine, in succession the need to have the double "consumer material" and post-print times (a very precise time of immersion in acid is hardly compatible with office hours).

However, superficial defects remain in the interface zones between the two materials (piece and support), even if minotes of classical fdm printers, to be removed manually

 

[marcok625]

I always carry my experience, the support was eliminated in a bath of water and acid, in 4 hours dissolved everything.
printer stratasys

Stratasys use this type of post processing to remove the support material, so they need another gadget that performs the operation. in the company in another branch have a stratasys and also they told me about this process with acid, their printer only prints abs, but I think it's a little old. since we took our ultimaker earlier this year some prints make it to us, because they are equally accurate and can choose the most suitable material.

However, superficial defects remain in the interface zones between the two materials (piece and support), even if minotes of classical fdm printers, to be removed manually

when you remove the support can be that there is to remove some small defects left on the pieces, but it is enough a cutter or a bit of sandpaper. depends on which materials you are printing, not all materials are perfectly compatible with support materials.

 

[marcok625]

hi, about the ease or not to remove the support material from the prints, in this video in the final part show how to remove the breakaway support material from the petg.

 

[alessato]

Bye to all,
in the company we are evaluating the purchase of a 3d printer, a pretty small thing as size, from counter to understand.
in choice, what should be evaluated, according to you? in addition to the printing size, of course.
possibly there is a reference site, a guide etc that can help in the most suitable choice?

of course the main factors are budget and print size.
among the cheapest 3d printers I found this list.
If you go more on the professional obviously prices pop up, but it could be worth it according to what you have to accomplish.

 

[marcok625]

hi, as a mid-range printer at an unbeatable price I recommend this: qidi x-plus or qidi x-max. plug and play printers really!.
I took it for home and I find myself very well, very robust and with good mechanics, able to print also the very technical materials like nylon loaded carbon, the beautiful is that in the accessories has an iron extruder for technical materials and a further printing plan.