Performing a tolerance analysis to determine how much the height of your unit can vary is a great idea but, also remember that the 1.75" for 1U is a nominal height. We worked off a rule of thumb that ~1.72" was the max height to make sure it fits between two already installed items above and...
You may be able to trick the SW into cutting the parts you want. If you determine the minimum web thickness that it will allow you to have you could create dummy parts that are smaller by that amount minus the beam width. You would also need to tell the SW not to cut one side of the part, this...
Are there any holes or other features on the parts or are these really just solid squares? If so, I would make these on a shear out of sheet or bar stock, probably faster and cheaper than the laser or the saw.
I did not dig all the way into the patent but I was curious and took a look around, it sure looks like they are just talking about the attractive force between two charged plates of a capacitor where one plate has a larger surface area within the same footprint due to additional surface...
It has been a while since I programed a laser cut part but could it be due to needing to account for the width of the laser? If 2 parts shared a boundary you would be cutting into one part or the other and the SW may not like that. Could also have something to do with pierce locations or tabs...
Pictures would help, are these getting knocked off due to shipping and handling and you would just like them to stand up to a little more abuse or are they failing so badly that if left alone in a room for 1 month they would all fail on their own?
They could be structural foam injection molded or reaction injection molded with a foam insert. The swirls on the surface are typically seen on structural foam parts which makes me lean that way.
https://romeorim.com/structural-foam-molding/...
Edmund Optics and Thorlabs are good options though not very cheap. Both look like they have a stand very similar to what is in your picture or you can assemble something custom from their components.
https://www.edmundoptics.com/f/edmund-e-zoom/13312/#...
Sound meters are not very expensive and it sounds like this application would benefit from one instead of trying to do it all on your phone. Here are a couple in the $100 price range
Digikey
https://www.mcmaster.com/10235T72/
I don't have experience in cryogenic applications but could you use a normally open solenoid valve or something similar that is only closed when energized?
Rusty, Sorry that I misunderstood the question. Under the "reports" menu there is an option to display fan operating points:
This will give you the values that will look like this:
You can then plot that on the fan curve manually to see where your operating point is. This picture does...
In icepak you create the fan and input the fan curve, an output of the simulation would be the operating point of the fan. You can force a certain flow rate or pressure drop using inlets or grills but if you are modeling the whole system including the fan why not let the simulation determine...
Without knowing what size you are looking for this is the best I can do: https://fastech-racing.com/skm-circlip-for-grooved-hardware.html
https://www.arconring.com/wire-snap-rings/plain/
The search term I used was "round wire circlip" and then did an image search. Lots of other options out...
A cheap option would be a grooved or knurled pin that is pressed in like these from mcmaster: https://www.mcmaster.com/products/pins/dowel-pins~/center-groove-dowel-pins/.
I know they only go up to 3/8" on that page but it gives you an idea of a possibility. You may need to switch your...
Here are a couple other design guides to go along with the one looslib provided:
https://files.engineering.com/getfile.aspx?folder=e294291e-88b9-4d36-9be0-cea56904a2b6&file=Metal_Forming_Dayton_Rogers_Design_Handbook_E-Edition.pdf
3DDave, Note 2 allows for ISO 2768 to be used for other processes: "These tolerances may be suitable for use with materials other than metal." We have used this standard frequently for injection molded parts produced in Asia at the suppliers request.
dogbural, In the quote you got from the...
These get close to what you are looking for but probably still too big to fit the pockets in the wheel:
https://www.westechrigging.com/coupler-cartec-038.html
I found this one for a 6mm D shaft, I have not used them myself.
https://www.andymark.com/products/6mm-d-push-on-retaining-ring?via=Z2lkOi8vYW5keW1hcmsvV29ya2FyZWE6OkNhdGFsb2c6OkNhdGVnb3J5LzVhZjhlMDRlYmM2ZjZkNWUzNmYyMzg3MA
