3d thread shocks for printing

[Dedo84]

Good morning.
I'm starting to use solid edge 3d thread. But I see that there is no deviation and in fact the printed pieces do not screw up.
do you have any suggestions to add shocks like thread tables?
I tried with the classic offset but it doesn't work.
Thank you.

 

[marcok625]

hi I use the print parameters in creating the 3mf file or gcode. for example in care, but I also believe in all other slicers, (magari with different names) you find the command "slicing tolerance" which by default is on "middle", in these cases I put it on exclusive, in this way the center of the nozzle is not to print on the line of the perimeter of the piece making it increase in size, but always print internally at the perimeter of the theoretical piece.I hope I explained.
have you already tried with this setting?

 

[Dedo84]

Hello, thank you for the tip... We'll try like that.
but you put these settings on the printer or directly exported from the cad?
Thank you.

 

[marcok625]

Hi, from your question, I understand that there are also some unclear solutions.
This information is found in the slicer (software for 3d printing) not in cad.
side falls another thing that can make the difference is the quality with which you generate the stl format which is usually the format that the slicers open. if the quality of generation of this file is low therefore the geometric shape of the piece that will be printed will be "simplified". an example only the round surfaces that are simplified to a series of consecutive flat surfaces.

 

[Dedo84]

Hi, we used to load a .stp directly from the printer.
But since I don't go directly to the press, I do two checks with colleagues:
- export side we can go out with .stl choosing high resolution
- printer side I see with my colleague
Thank you.

 

[marcok625]

Hello, nothing. I'd ask you a few more questions that could help. what printer and what slicer do you use? What thread are we talking about? Which nozzle are you using 0.4 or 0.25? What is the material used pla, abs, nylon? Thank you.

 

[Dedo84]

Hi, here's what we use:
- Stratasys f370 printer
- abs-m30 material
- Nozzle size I don't know... I asked and I'll let you know
- we tried with the best slicer resolution
- nothing changes by importing a .stp file or a .stl file exported by cad with better resolution

the doubt that it assimilates me however is that side solid edge (version 2021) are not contemplated the shocks.

other proof that I made is to insert in the table holes the diameters by either adding or subtracting the tabled deviations. in this way the hole is actually generated increased, while the pin does not generate any thread.
If there is any suggestion, I would be happy to try it.
Thank you.

 

[Be_on_edge]

I think this is the main problem to be corrected in the printing phase.

In my opinion it is appropriate to report this; the function was created precisely for 3d printing makes no sense that the printed pieces then do not screw up.

 

[Vittorio]

Hi.
I don't know what precision needs you on the thread.
I have adopted this rule:
in building the propeller of the mothers give a game equal to half the øugello
then nozzle ø 0.4 game = 0.2
also works well with nozzles ø 0.6 with game 0.3

 

[Dedo84]

thanks to both and I agree with be_on_edge!
ok I will also try what suggested by victorious.
Good day

 

[marcok625]

ciao @deed84 I came back today from the holidays. thanks to the info.
for your printer that software you are using ? because with grabcad print insight there should be the threaded holes function. if you look at the video in this link per minute 2:06 is seen in the menu that opens in the type as the second icon the threaded hole.
I have never worked so far with stratasys printers and I don't know what kind of parameters can be configured with that command, but it's worth trying. Hi.

 

[Dedo84]

Hello, thank you for the support!! !
I unfortunately do not use the printer, I have to turn to the colleague, so it will be distributed in September. . .
I will give you the result so that then other users can also take advantage.
Hi.