Recent content by Poorpaulus

Thanks! I'll look in to that. It was assumed that it needs to be a non-corrosive metal. I can't give exact details, but it needs to be 180mm diameter, corrosion isn't really an issue, but it will be in contact with atmosphere and it will be in contact in a non-corrosive liquid (not water). I...

Thanks everyone. 👍 You're on the same mindset as me. I will go back to the "Big Brain" and tell him that he needs to take another look at his calcs.

Agreed. It'll be used in a temperature controlled environment. Someone with a massive brain has done some very long calculations, which stated that it requires the tolerance for the concept to work.

Hi everyone, I am working on a project that requires a stainless cylinder with an ID of 200mm to have a redicoulsly tight tolerance of +/-0.001mm, over an axial distance of 120mm (10mm wall thickness). That's not a typo on the decimal places - needless to say, this is challenging. Does anyone...

At the moment, the material is EN32. Probably not the best choice, but that's what our job-shop had to hand. They also attempted a rudimentary heat-treatment. The pin is bending. It has a very small recess in the end to help alignment. Unfortunately, the equipment that is available means that...

That is super-helpful. Thank you vey much [smile].

Hi everyone, I'm NOT an expert of any kind when it comes to this arena, which is showing the restults that I am getting. I have a 2.5mm dia press tool pin that is pushing in a small, steel part with an interference fit in to aluminium. Unfortunately, the steel part needs to be pushed down...

Thanks for your thoughts, everyone. Most informative.

It is a variation of a legacy design which has worked for years. I thought that the question concerning shore hardness was a valid one, but I can't find any information concerning my original question.

Hi everyone, I'm working a piston that will see about 50 bar, but will also see approx 1 bar vacuum. It has a stroke of only 25mm, a 18mm dia and a linear speed of only 2mm/sec. This change from pressure to vacuum will occur over a matter of just a few seconds. I've been asked by the Chief...

FOUND IT!!!! Please ignore this post.

...sorry about the picture colours.

I'm recently returned to Pro-E (Creo 3) after a break of a couple of years and I am having a problem getting the text on a dimension to behave. Instead of it sitting on the outside of the leader, the text goes back on itself. Any advice would be greatly appreciated.

That makes sense...thanks again.

WOW!!! Was that it? I don't understand why, but I'm happy that it's now as it should be. Thanks dude.