When designing sheet metal, what are the considerations made to decide whether you will use a pem clinch nut or jus a normal thread?
Typically, I felt that pem nuts are always better than threads in aluminum sheets, but Steel sheets are much stronger and stripping a thread is more difficult...
I have a pretty complex part to draw and a specific view is loaded with features. Placing all the dimensions on a single view just makes the whole thing look like a mess and ocnfusing. Usually I would do something like dimension the hard edges on one page, then the holes on the second page, but...
Is it reasonable to assume that the inner circumference of the O-ring roughly equals the inner perimeter of my O-ring groove? If so I can work out my required diameter and order a few O-rings of roughly that size to increase the odds of getting it right.
The above O-ring has an inner length...
I need this middle deck adjustable vertically because of potential tolerance stack up problems. I have been trying to figure out the best elegant solution and this is the "best" solution I have come up with.
A long M4 x 80mm screw goes through a self clinch nut. This screw will push against...
I'm struggling here. I have a clamp which will be tightened over a rod. The clamp and rod will be enclosed in a box and the thru hole you can see in the model will not be easily accessible. I'm trying to think of ways to fit a captive screw in this thru hole so it can be tightened from outside...
I'm in a design concept stage at the moment. I have a Stirling Cooler which will be running at -120c. The head of the cooler will be enclosed with a box. At this temperature carbon dioxide and water will instantly freeze on the surface and form a large spherical ice ball. I'm looking at ways to...
I'm looking around for some answers and i'm struggling to get much online, and my college notes didn't go into this.
I'm researching for a design we might have to look into soon. I have a glass tube which is leak tight but kept at 60 psi with Helium glass running through it. This glass tube...
I'm having a minor debate with an engineer in work on flatness tolerances on sheet metal. We have been getting panels which aren't sufficiently flat (bowing in the centre by 1.5 mmm roughly).
I suggested putting a flatness tolerance of 0.5.
Is this flatness across a 250mm long 2 thick...
What fit would you put when brazing a shaft through a hole?
I believe it's a close clearance fit (Something like a H7 g6) but I just wanted to make sure.
What's everyone's opinion on keeping the overall material dimensions and the hole position & details on separate sheets?
I usually try my best to fit them onto the same sheet, but if it starts getting cluttered I will separate them (I quite like separating them onto separate sheets, makes the...
I am a relatively new Engineer (working on drawings for a year) and I was wondering what is everyone's opinion on dimensioning about the Centre line when features are symmetrical (Example image attached).
I like doing it, it's tidier. Dimensioning about Centrelines allows me to reduce the...
I seemed to have kicked off a little debate in work. I have a shaft/cylinder part where some internal features need to be dimensioned. I run a section through the entire cylinder, but an engineer said that it's incorrect. He said that running a section through a cylinder goes against convention...
