creation injection channels in a mold for rubber item

[stefer]

good morning to all, I have to create a conical hole to create an oblique injection channel (45°) to connect the upper channel where the injector nozzle to fill the rubber cylinder (i.e. in the 2 hollow rooms/figures). the channel must start from 3 mm and finish diameter 1.5 mm. I should look for the fastest method to make it... But I have some difficulty. I used the loft command creating an initial circle (3 mm) and final (1.5 mm), but not being aligned to 45°, the output came in the form of ellipses.
advice? I train the step.
Thank you, stefano.

 

[SperX]

Try to add a guide... at first glance this seems to me the problem.

 

[Meteor02]

hi stefer from 3 to 1.5 you have little conicity, 1.5 is an exaggerated gate at most you use 1mm. I would pass from 5 to 1 mm. to get the circular injection you have to do a 3d sketch on the mold wall and use that as the final point of the loft.

 

[stefer]

Try to add a guide... at first glance this seems to me the problem.View attachment 66994

Thank you, I try to add a guide!

 

[stefer]

hi stefer from 3 to 1.5 you have little conicity, 1.5 is an exaggerated gate at most you use 1mm. I would pass from 5 to 1 mm. to get the circular injection you have to do a 3d sketch on the mold wall and use that as the final point of the loft.

Hello meteor, thank you for the answer... Could you help me a little better with 3d sketch? I've never used the 3d sketch and I'm having a bit of a hard time getting the right coordinates. Do I add a plan? with part of the mold I mean the inside of the compartment?
for the size of the gate, do you think a cone from 5 to 1 is also usable in the rubber? I don't want such a small endpoint to generate friction, so heat and then go first to vulcanize the rubber before we completely filled the footprint.

Hello and thank you! stefano.

 

[LaboratorioDieci]

I should look for the fastest way to do that. . .

Have you thought of a solid revolution and a subsequent match?

 

[Meteor02]

Hello meteor, thank you for the answer... Could you help me a little better with 3d sketch? I've never used the 3d sketch and I'm having a bit of a hard time getting the right coordinates. Do I add a plan? with part of the mold I mean the inside of the compartment?
for the size of the gate, do you think a cone from 5 to 1 is also usable in the rubber? I don't want such a small endpoint to generate friction, so heat and then go first to vulcanize the rubber before we completely filled the footprint.

Hello and thank you! stefano.

If you've never used it is a bit complicated, you have to create a point on the inner wall and bind it to that sketch. What material do you need to print? Usually with the pvc a gate from 0.6/0.8 to the limit widens during the mold test if the thicknesses of the particular require it.

 

[re_solidworks]

mah, if the shape is exactly conical, I would use a cut in revolution. I may not understand the problem, but it seems to me that
simpler and more effective solution.

 

[LaboratorioDieci]

mah, if the shape is exactly conical, I would use a cut in revolution. I may not understand the problem, but it seems to me that
simpler and more effective solution.

In fact it is necessary to see how the hole is made. if it is made in drilling it is definitely circular section.

 

[stefer]

you are a hole made with conical tip and at this point I manage it with plans and cutting in revolution... even if I was interested in deepening the speech of the colleague talking about sketch 3d.