I am not looking to get into a discussion about the benefits of this CAD package versus that...but I am interested to see if anyone has a PDM package that they actually like.
I used PDMWorks a few years back with Solidworks and it worked pretty well. At the time, we did some exploration with...
I am looking for recommendations as to a "must have" text on Steel and Al metallurgy for product design.
I have been skating by for the last few years on the basic texts that I bought in college and web resources like Matweb, but I really need an in-depth book that discusses the properties of...
Has anyone had any good or bad experience using PEM's in situations where they might be exposed to shock loads after installation? I have used them in the electronics industry with no problems but I have heard rumors that they don't stand up well to impact loading.
IMO, a PEM that has been...
I am currently contemplating a shift in responsibilities from a Sustaining/Manufacturing engineering position into a Design engineering position. I have gained a large abount of experience in the design of sheet metal, plastics, machining and some electronic assembly design, but to this point...
About a year ago, we had a complex mold base made to work with a number of inserts from an existing mold. We don't want to keep switching the inserts back and forth between them and are looking for a cost effective option for creating new inserts.
Management has heard that chinese mold...
I am working on a binding problem with a rack and pinion system. We are using a 14.5PA 48P 22 tooth pinion on a 14.5PA rack. Should the Pitch lines be lined up exactly, or should there be some clearance/allowance allowed in the system? Due to manufacturing tolerances, we are having trouble...
Does anyone out there know if there is a maximum RAM limit for NT4? I just had my work system upgraded to 512MB and it seems to have slowed down?! One of the CSE's I work with told me that he heard NT had an upeer limit of 256MB.
I need to know if this is correct and whether or not to fight...
A coworker of mine is running Ideas8 on a brand new 1.8MHz 256mb computer with an nVidea graphics card and runnin windows 2000. Since this new installation, he has gotten several corrupt model files and had to turn off the standard screen saver because it locked up his computer. I noticed that...
I have always heard that it is a bad idea to lubricate plastic gears because residue from normal wear will mix with the lubricant to create an abrasive paste which adds to the wear problem. Is this true? Has anyone had experience with this situation?
My application is with a set of 1"...
As most of you know, engineers are generally considered exempt employees under the FLSA. My question is if we have any rights under this act. In my situation, I have all of the negatives of an exempt employee (no paid overtime, no sick days, no maximum work week) but I also have the negatives...
At work, I run Windows NT and to this point, I have had no problems. My computer at home though runs Windows ME, I have had nothing but trouble. To this point, it has corrupted several programs that now need to be reinstalled and dies if I try to extrude a solid in Solidworks. Lately it has...
A vendor of mine is recommending that we use helicoil inserts for a threaded hole in a part made out of Delrin. Most of the information that I have suggests that brass inserts are better for plastic materials. Does anyone have experience with this or know of a good resource?
Thanks for any...
I am working on a problem with friction wear between two parts. One of them is hard annodized 5052 H32 Aluminum. My question is what is the hardness of this material after the annodizing process. I have looked several places, but have so far been unsucessful finding a spec on this. Any...
Has anyone been able to find out what the lubricant used in Lexan WR 2210 is? If I had to guess, I would say that it is PTFE, but so far I have not had any luck finding out. The reason that I am concerned is that I might have to switch materials to one accepted by the "Blue Angel"...
I am trying to find a way to break my dimension lines. To clarify, when you have two dim lines that cross each other, you are supposed to cut one around the other so that each can be seen individually.
Has anyone figured out how to do that?
Has anyone had any luck using polycarbonate in the design of plastic snap fit parts. I have seen through this forum that most people recommend POM (acetal copolymer) for this application. I am working on a part that was originally designed to use Lexan PC.
Any general ideas on this subject.
