gas spring sizing

[Mito125]

That's what I meant. I have the standards, which I would always use. but how do I choose it if I have dimensioned following instructions on page 12 that then I don't find anymore on page 15? How do I choose the ideal one?

Surely it is good to always talk to suppliers, but as I mentioned in another discussion, it is a trivial graduation thesis, I have to choose alone. Do I have to try them all until I find the correct one??? Is there an immediate and maybe automatic system to choose it? Thank you.

 

[meccanicamg]

But that two balls are fixed in the catalog....if you want to use one of the catalog you must change at least the center of the low zipper and adapt with the race.
if you use a parametric cad quickly try 2/3 standard runs and find the center of rotation and reverify the force of thrust.
I wouldn't do so much, and I'd take the custom spring, maybe running standard, but I want it.

 

[Mito125]

Well the catalog provides a lower basic cost, I will be a bit fixed but then those are the tools you find at low cost. I will do a couple of tests to see the forces and verify the thrusts, maybe you can also set a decent excel sheet. I'll get some evidence.
Thank you.

 

[meccanicamg]

companies that manufacture components and machinery as well as plants, I would say that much they buy or realize customized, so not linked to a specific and compulsive catalog. Italy is known for the sartorial ability to make products in all areas, so "no standard".
Remember that 1 hour of design of your "hypothetic company" has a cost of 40€ that the "your owner" has to pay, while if you knock down the supplier "he pays him the hour", so it is obvious that whoever makes the gas springs makes you pay something extra if it is not standard (the charge force usually does not change the price because they do not hold them to warehouse loaded the builders) but you have done something higher than your expense "

Otherwise if it were that things in the catalog are the ones that cost absolutely less... and then they always go well... you would have invented something great.

You better make a nice excel sheet with all parameterized so then you quickly determine and try the various springs.