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screw extraction advice

  • Thread starter Thread starter fireblade81rr
  • Start date Start date

fireblade81rr

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I greet all and learn to present to you my problem, I have a vine, of which I attach image, to realize in some polymer to me not known, the problem is in the fact that as it is doing 2 matrices with closure in the half-halfry of the vine I have so many subsquadrares how are the spires, the mold that deals with the main structure of the mold has said that the matrices are compulsory in the half-life used
 

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fireblade81rr hello, tell me about half-works both in your reasoning and in that of the moldist, and frankly I have difficulty in understanding what one or the other means.
to relase a mold of your piece, simple and unhealthy the closing line of the mold and therefore of the matrices must be on the red line that intersects the model, so as not to have sub-frames.
 
you actually the red line is the half-car we refer to, but if you think to make the 2 matrices of the screw as it does not come out of the mold, guaranteed,it is 2 days that are above,the propeller of the screw is stuck in the matrix while opening it
 
I'm sorry, but I'm having a hard time seeing the subframes, but it doesn't seem to me that there are problems in disposing the mold as we said.
Consider that in production I have several molds that reproduce male threads and nobody gave me the problems you're telling me.
 
Hello everyone
if you use any sw that has mold mode
using division line
possibly closing surface
division surface
matrix
dividing
If there are any probes of subsquadra you will not be able to have a matrix
if on the contrary you can get a matrix in the modalita described
then there are no subsquadri
Thank you very much
 
I'm sorry, but I'm having a hard time seeing the subframes, but it doesn't seem to me that there are problems in disposing the mold as we said.
Consider that in production I have several molds that reproduce male threads and nobody gave me the problems you're telling me.
It doesn't seem to me that that life has substations.
 
Bye.
If for this screw they need movements then I realized why the molds today cost an eye of the head.
greetings
 
Good morning.
I agree with mocca and with the rest of those who do not see subsquadri unless there is any other "fastidio" not visible in this image.

Good morning.
 
I attach the images with the screw and the 2 matrixes of the open mold of 0.1 per part and the colored intersection of green between screws and matrices, in practice the problem arises because of the simple fact that the screw is a spiral, consequently leaving the mold the tilted part of the propeller touches, I resolved "limando" slightly the vine where there were the intersections and now turns out quietly.
Greetings,luca.
 

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I'm not sure there's a sub-square. I made a mold of a screw like that and I had no problem.
for my personal curiosity.. Could you send me the iges,step or rhinoceros file of this model?

I will verify and then I will tell you my considerations
 
it happens when you do the threads that a part of the propeller goes in subsquadro depends as it was modeled, usually they are a few cents, however when you erode the figures the problem does not exist. .
 

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