model a srampo

[FB9]

Good evening to all,

I would like to know with which technique you would model a casket mold so as to have a result as much as possible associative parametric.

My main doubt is on how to import the mathematics to be taken away then to the block that will be my mold, of course so that if in a future I have to change the mold I come behind.

Thank you.

 

[gianni55]

No one answers you, I try it even if it's not my field.. .

I imagine you to create the mold receive a solid from which you revenues the main geometries:

1) the stinged faces,
2) the faces extracted for the matrix side,
3) then generate out common figure,
4) joining the first 2 getting surfaces
5) with which you will subtract (or better cut) the solid punch and the solid matrice and from them
6) continue drawing mobile dowels and seats
7) air conditioning holes and what else is needed

now the surface "matrix" and the surface "punzone" can undergo changes or for new revision of the original element to be printed, or for technical requests from the customer/workshop etc.

these modifications if applied in the first phase i.e. until point 5), i.e. when you simply have the prism of the mold and its cutting, do not involve problems, just perform a "replace" of the cutting surface or return to the cutting command and change the selection, but if you have continued the modeling and arrived at the end, the replacement could create problems during the upgrade, due to the loss of some definitions (absolute axes, projections, selected edges, etc.)

There, the point is: it is necessary to avoid as much as possible to model new features with projections, selections of edges, constraints etc. that refer to the faces obtained from the cut with the main surface, and in case it is necessary, it is preferable to isolate instead of maintaining the reference, while you can refer to all other features, provided they are generated from elements (schizzi, wireframe, planes etc.) not related to the figure.

refer to the editable figure of the mold, only if strictly necessary and not for "comodity" (massì type, I stand on that flat face for sketch) and if you do, isolate the reference

How to do that?

I do some examples:

1) Should I perform the seat of 1 dowel that happens on a planar area of the figure? I do not support the sketch directly on the plan/figure, but I measure the value and create a parallel plan compared to the "canonical" on which I support the sketch.
2) should I create the seat following a profile of the figure? I extract geometry in the sketch, but isolated, the fixed and then continuous modeling
3) Do I have to obtain normal holes at the surface of the figure? echo point and normal line from the figure but explicit
4) I work as much as possible with boolean, subtracting (or adding) solids to the main solid, thus also changing the figure, the subtraction takes place without requests for updating

Obviously when I make the replacement/modification, I perform a careful analysis of how much it changes and if individual that relates to 1) the value of the plan: the change, 2) with the profile: I replace it in the sketch, 3) I re-cave point and line and I carry out a "replace", 4) I verify that the solids I used for the boolean are congruent with the new figure.

The speech is still long but I stop here.

Let me know.

Hi.

years ago

 

[FB9]

Thank you very much for the advice.
I work in the field of plastic blowing so the speech is slightly different.
In any case, your spuegation was useful to me.