Vacuum forming help required

Soon I will be starting to design a vacuum formed storage tray for a client. The tray will have approx 60 identical pockets for the components to sit in, a stiffening edge lip, lid location points etc. I am not designing the forming tools and I am looking for tips on how to approach this. Should it be a surfacing job, I am a novice as regards surfacing, or start with a solid block and cut, sweep and pattern the form. Or should I look at mold tool design anyway?. I also need to find information on min bend radii and draft angles for the tray material, all suggestions welcome.

Reply to
Andy Rodgers
Loading thread data ...

If you have sw2006 , look in the helpfile on this subject :

Indent - Overview and Options

The examples are very helpful, in that section.

or if you have an older version i would do the following. make assembly, take the product which has to be stored and drop on origin, insert new part , draw a cube around the part that has to be stored. then use insert cavity feature. then use shell feature, cut away sides and startr mirroring the number of parts you need.

best regards,


"Andy Rodgers" schreef in bericht news:

Reply to

formatting link
Tutorial 9b might give you some ideas.

Reply to

Talk to the people who will actually be making the part and the mold maker. Everyone has preferences.

formatting link
The Society of Plastics Engineers has some good books on the subject.

formatting link
And for that matter, try the local library. I know the local library in my city of 30,000 has a few books on the subject. And that is generally free.

As far as SW, I would make a solid model of the mold side of the part which will likely be male and then shell it outward. You won't be able to pick up all the nuances of a thermoformed part because the material thins, but you can get close. Also important is the runoff surfaces and trimming information. Remember that your part will start life as a big sheet of flat plastic and then be trimmed away.

One rule of thumb with thermoforming is that the mold surface is most important. The actuall part you get will be very process dependent.

Reply to

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.