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All, We have a design that is in effect a face to face 'O' ring seal. The client requirements is that the faces are inconel coated. What is the requirements for inconel coating? i.e. The 'O' ring grooves will have to be oversized, coated with inconel and then re-machined. How thick is a typical...

All, To achieve a certain clamping force between two friction faces (or bolted connections), is there a requirement of a certain bolt length to provide enough bolt stretch to hold the connection together. i.e. For 1" bolt connecting two faces, do you require a minimum nut seperation length to...

Guys, Consider a pipe of 100mm OD and lets say this is subject to a maximum ovality of, say, 10%. Taking a section through the pipe, does this mean that: 1) The pipe can be 110mm in the x-plane with 90mm in the y-plane? 2) The pipe can be 105mm x-plane / 95mm y-plane? 3) The pipe can be...

Currently trying to model a rolled plate to match the exterior of a pipe, similar to a repair patch. Problem is that the patch will have an 'O' ring groove machined into the mating face of the plate, machined prior to rolling the plate. Is it possible to configure AutoCAD 2007 to produce an 'O'...

We are looking at designing a pipeline clamp to hold 2,500psi. An area of the 16" pipeline is question and we have been approached to design and manufacture a twin half shell clamp that can be placed around the pipeline, clamped & squeezed together to contain the pressure. We are having...

All, When you print cylindrical shapes as a 'Hidden' viewport in paperspace the shape prints with lots of diagonal lines on the cylindrical face. Is it possible to turn this off this feature?

We have a steel structure that we need to attach some lifting padeyes. Where these padeyes will be attached is loading the steel in it's non prefered direction (Z-direction pull). The material certification doesn't cover Z-direction tensile testing. The remainder of the structure has been...

Probably something that has been covered many times, but in paperspace views can items that are hidden be shown as hidden lines i.e. dashed lines?

I have resently fitted a larger engine to my 4wd (light weight alloy petrol to large heavy diesel), increasing the front end compression on the coil springs. The car now feels a little 'sloppy' in the rear end and I can only imagine that this is due to the heavier front end. All mechanical...

The main lift line is a Lang's Lay IWRC rotationally resistant rope on a single fall. The original design had the lifted item restrained from rotation, however the client wishes to remove these restaints. Even though the rope is classed as a 'rotationally resistant' rope, how much un-twisting am...

I have been playing around with the motion path animation part of AutoCAD 2007. I have been making the camera follow a point and target follow a pre-defined path. I can only get the path the follow a 2D polyline on the X-Y plane on the World UCS. Is it possible to set the camera to follow a...

All, We are currently looking at designing a cylinder without the help from a cylinder manufacturer. The cylinder will be 3.3m long and have a capacity of around 10Te at about 200Bar. The cylinder will be trunnion mounted behind the end cap and clevis mounted at the rod end. As you will...

All, I have a situation when I'm trying to dimension in paperspace. i.e. Drawing is set to layout and dimensioning fine, until I zoom in where the viewport is beyond the size of the monitor. Autocad seems to want keep the object the same size without letting you zoom to, say, snap to a point...

Easy one guys. What does mmbl mean in relation to flow / consumption of barrels of oil. Is this million million barrels? If so, what is the value in scientific notation as I think there is a diffence between US and European terminology for what a billion is. ?? Regards, Kevin

All, In previous versions I have set up icons for 3D wireframe and 3D realistic shading for modelling purposed. I could click between these icons no problems. However, in version 2007 when you click on the 3D realistic shading icon it asks for: Enter an option...

We are currently designing some sheaves that will be submerged in seawater for extended periods of time. We wish to make the sheaves and pins from stainless steel, however what is the best material to use for a bushing? We think that brass or bronze against stainless in seawater will cause...

Recently moved to 2007 and having a little glitch with move, copy, etc commands. For example, you draw 2 circles on the screen side by side. You wish to move both circles from cirle 1 centre to circle 2 centre. You select move command, select both cirles, select the centre of circle 1 as you...

I am running 2007 and having problems with displaying solids while modelling. Starting a new drawing everything is fine, however the more time spend on the drawing the solids begin to become almost transparent with the edges of solids feathered and confused. Saving the drawing and re-opening it...

I have recently installed ACad 2007. Is there any way to remove tooltips and the pop ups while drafting? i.e. Draw a line and there is a co-ordinate box allowing you to specify start / end points. Very annoying. Thanks, Kev

I've recently upgraded from ACad 2002 to 2006. In previous (post R14) versions, to change a layer you could select the items you wanted to change, go to the layer control box and select your new layer you want the items to become. Easy! This version, you select the items, go to the layer...