Afternoon all,
Our company has insisted on spec'ing it's own custom bearings for an application. Thin section Hybrid ceramic if it matters.
Are there any specific drawing standards for ball bearings? (like there are for optics, castings, springs, gears)
I've found several references to ABMA 20...
Afternoon all,
Our company has insisted on spec'ing it's own custom bearings for an application. Thin section Hybrid ceramic if it matters.
Are there any specific drawing standards for ball bearings? (like there are for optics, castings, springs, gears)
I've found several references to...
Hello all,
I would like some horror stories from past experiences why we need a good PDM/PLM system.
Our group is integrating Teamcenter where we had a simple SVN system before. I have a difficult new user who doesn't think we need all this junk. We are also integrating w/ Agile. He thinks...
Hi Joe,
Some questions here about how best to work remotely.
User A wants to:
[ol 1]
Download an entire assy to hdd,
One of those files being checked-out to him
and let the other files be worked on by other engineers.
work remotely on his file,
then check it in to server when back...
cross thread - Just hoping to get GregLocock or similar's thoughts on tolerances on something like this:
http://www.eng-tips.com/viewthread.cfm?qid=393222
Jason
My understanding of y14.5 2009 (roughly pg 83 of the std.)
Is that if I have a part being support by things that are compliant in certain directions but not others that I can tell a datum to not control all of it's implied degrees of freedom.
i.e.
A cone defines 5 degrees of freedom, but in my...
Howdy all,
I'm finding myself assisting in the design and tolerancing of a steering knuckle. Any recommendations on standards and reference materials?
Also, are there any standard ways of toleracing the tapers for tie rod and ball joints? I've found some machine tool / morse taper...
I'm a cad admin for our company currently running nx 8.5 and teamcenter.
Just looking for thoughts on upgrading to NX10 especially wrt stability. Anybody with experience have any thoughts? I'm quite familiar w/ NX9 so I understand the interface will be different.
Jason
My question
Why not make a A size template that has essentially D size fonts on it?
I was surprised that when I did a search, couldn't find much on the subject.
I'm finding myself in a cad admin role and setting up drafting templates for a small division of a large company.
I'm a mechanical...
Hello all,
Forgive me, I couldn't find this information posted. I'm a serial mechanical engineering contractor and have used NX and teamcenter for a couple years as a user, but I'm finding myself now an admin.
I'd like to import about 4000 NX prt files and another thousand or two sim and...
So I figured you might have some insight. I couldn't find anything in any of the ME textbooks I have. But I don't have any specific vibration books.
Motorcycle handlebars vibrate enough to suck.
Steel tubing 18" long ish supported in the middle.
Swap out for solid aluminum -better, but not...
My boss insists that there is a DIN tolerance standard that will cover exactly the (foam) parts we are having made, I have no idea how to call out a din tolerance standard on an asme drawing. Normally Y14.5 2009 GD&T.
Have you guys run across any of these and/or have any examples?
my attempts...
Hello,
I'm an ME and our family business is garage doors. My brother asked me why garage door tornsion springs relax after several days/weeks/months and if there's anything that can be done. It seems to relax about 1/2 wind after a couple of weeks.
I couldn't find much that was useful on...
Curious what ya'll think.
What is an appropriate late fee?
I just spent the last 2 months working for a small product design firm. I'm a mechanical engineer on a 1099 contract.
In his terms that we signed, payment is due 'net 30'.
Well, it's been 31 days. I stopped working there last week...
General question about fatigue.
I'm an ME and I do not remember seeing in any text an answer to the following:
If I have a part that's cyclically loaded and after say ~50% est fatigue life, it's taken out of service, x-ray'd and checked for cracks. Then annealed and re-heat treated (and...
Hello,
My company has been building a breakaway device for years now with a pair of magnets firmly mounted to the device. The mating piece is a piece of mild steel. They have the magnets oriented in opposite poles; they (I believe erroneously) call it a Halbach array. There's a steel...
Any recommendations for oil temp in a motor?
Gas engine?
Race vs street?
Diesel? (especially diesel!)
My knee jerk reaction would be to aim for slightly over 212F to boil the water out.
Sources? Books/articles?
Jason
Hello,
I work for a consumer electronics company and we're currently looking at improving our quality control wrt our anodized aluminum products. Most are clear ano, some colored.
I've got a handful of samples in front of me that measure very very close in surface roughness (1.8->4.0 micro...
Howdy all,
I'm working with some boundary surfaces and after running into some weird filleting errors, ran a symmetry check. noting something was asymmetric, rolled back to the point where i mirrored a couple of bodies. Immediately after i mirror the bodies, when i run a symmetry check (i...
Hello,
Got a tough one. Customer makes turbines. The blades are very curvy things. He needs to rough this thing on a lathe. I've got the model, but now I need to be able to get a 2d profile of what it would look like if it was revolve around its axis. The blades are ugly curvy things and...
