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I would use gage balls to determine axial the location of the taper and runout (like your figure 2) to control the radial location.

Kevin, I think closed VOLUME describes it better. The stl file is then a list of triangles that make up the surfaces of the closed volume. Thanks for your input.

StrykerTECH: Solidworks will only take dimensions .00000394in (0.1micron) and larger. I did try using a very small thickness and it still creates seperate surfaces for the inside and outside of the cylinder. This causes problems with software that this is imported into. Kevin: I have tried...

Save As- Yes. I get an error "The file could not be saved because the part's geometry is not valid for this type of save operations." What version of SWX are you running? Which surface feature did you use to create the surfaces?

Updraft, Thank you for taking the time to reply. I am well aware of the difference between a solid model and a surface model. However, for what I need to do I must have an STL file with open geometry, think of a cup where the cylinder and the bottom are just surfaces i.e. zero thickness. It...

Anyone know the trick to export a surfaces only model to stl file format in Solidworks?

The company I currently work for has been doing fully exploded assembly drawings for years. All assembly information is contained in the drawing. At my previous job it was detailed MPI's with lots of pictures and NO assembly drawings. Other engineers I know do mostly assembly drawings that are...

Thank you for the input.

I came across an old print (circa 1983)that calls out nickel plating as "Bright Nickel Plate .0002-.0003 Thk." Our materials manager is asking what type plating do we want. The part is a 1015 steel shaft that runs through bearings so the O.D. need to be tightly controlled, but it is also...

Gerry, Thank you for the reply. If I understand this correctly the case with a mild steel race will deform the same amount (and thus the same stress) as with a hardened steel race but when the load is removed the mild steel race is left with a dent because the stress > yield strength. The...

I am designing an assembly which will incorporate a Maxwell Kinematic mount (3 balls, 3 V-grooves). The balls will be sapphire and the V-grooves some type of hardened SST (440C perhaps). The basic Hertzian spherical indentation equations use the Elastic modulus and Poisson's ratio to calculate...

ozchevy wrote: "The EMI Paint sounds ideal, but I cannot find that product here in Australia, so much for Google." Try www.achesoncolloids.com We buy it from our local Sherwin Williams dealer.

In response to your questions: 1) Yes the type III is sealed. 2) The product uses a capacitive contact sensing system which is particularly sensitive to grounding issues. Large pieces of metal which are "floating" electrically cause problems. The EE's didn't want to rely on threaded holes...

We are using hard anodize for corrosion resistance. The limited research we've done and discussing the issues with the plater led us to choose hard anodize. According to the plater the increased thickness of type III is what gives it better corrosion resistance compared to type II. Weight and...

Thanks for the input. If the coating is thin enough and conductive there won't be a need for masking.

We currently use hard anodize on aluminum parts (Mil-A-8625F, Type III, Class 2). The anodize gives acceptable corrosion resistance and cosmetics. However the process ends up being expensive becuase of the extensive masking required. Due to the build up (.001")small threaded holes must be...

Thanks for the input. We looked at changing to other materials, however the application is very sensitive to wear and the design with the current materials and hardness is well proven. What I'm looking for is a vendor who stocks hardened and gound SST. My quantities are so low that buying...

I have an application which requires a small wear plate. In a previous design the entire part was made of 420 SST hardened to 50-54Rc and showed excellent durability, however the part has small complex features which are difficult ($$$) to machine in 420SST. A possibly better solution is to...

We use a conductive paint on plastic parts to provide EMI shielding. Electrodag EMI paint from Acheson Colloids Co. We also use a carbon filled polypropylene in a capacitive contact sensing system. I don't know the specifics of the materials but seems that something like that could work for...

Thanks. I had heard from another source that by varying the % of glass fill you can tailor the shrinkage rate to some degree. I'll see if I can contact GE platics and get enough info. to start a proto run.