9

In a sketch, you cannot have two lines that intersect themselves. You have to split them with the Split tool. Your bottom line for example, must be divided into 10 parts.


4

The way I would model the component shown on the LHS of your image is like this: Sketch the outer diameter of the circle on one of the home planes, say XZ, with the centre of the circle at the origin. Extrude the circle an equal distance in each direction, such that the XZ plane runs through it's centre Sketch half of a 'nub' on the same plane, with a ...


4

The answer is that in order to survive and function, the rocket nozzles need to be cooled. How that's done varies with the application, but includes: Liquid Cooling Jacket: The liquid propergols and/or fuels ar circulated through a jacket around the nozzle before being directed to the combustion chamber. This is how the Saturn V F-1 engines and the Space ...


2

This is not an appropriate sensor for what you are trying to do. This type of flat pressure sensor is sensitive to localised pressures. For example, from a piece of dirt or an uneven surface. You should use a load cell which is designed for your application. For example, something like: Omega LCMKD-20N would be more suitable. You can also consider this ...


2

To answer the other part of your question, the temperature is that in the chamber, but note that that figure assumes perfect combustion, which may not be the optimum point for specific impulse in your geometry. Many rockets run fuel rich as a reducing atmosphere in the hot bits is easier to cope with then an oxidising one. The largest thermal flux is ...


2

This video about Faux Sheet Metal parts was incredibly helpful. Start with a set of sketches that describe your sheet metal project. Create patches based on those sketches. Each patch can then be moved to it's proper location. After the patches are where they should be, then they can be extruded into bodies with the appropriate thickness. While this let'...


2

It feels a little unintuitive, because the part is a square tube, but you can use the function Circular pattern. Select the holes on one plane as elements to repeat, select 4 repetitions and as turning axis the axis along the tube, then the holes get placed in the desired fashion.


1

Ok, so I've re-installed Inventor... It's only now become apparent to me that your slot is actually a rectangle with all four corners filleted? If you instead create a 'slot' entity directly, then the relevant point will be automatically created for you, ready for dimensioning. In any case, below I have shown both how to add the point I was describing before ...


1

After playing around a bit with Content Center parts in Inventor, I managed to reproduce your problem and find kind of a workaround. It is not as smooth as just typing your parameter name in the Content Center window, but maybe it helps you. Place the part that you need with an arbitrary length in your assembly. Rightclick and open the part (don't click ...


1

The solution to this, is simply to add the "embossed lines" before the bend. Have a look at the modelling process below: Extrude a flat plate. Because this model will be symmetrical this is only half the size of the final object. Extrude a 'master rib'. This is 0.1mm away from the YZ plane, so that there's an 0.2mm gap once it's mirrored Pattern the rib ...


1

You might be looking for ball+corner. (Use the image search.) Figure 1. Ball corners are commonly used on flight cases for musical instruments, band equipment and scientific or engineering equipment.


1

Thank you for the help, actually, I was trying to extrude one of the circles and then pattern the extrusion, it didn't work because I used rectangular pattern in the tab "sketch" instead of the retangular pattern in the "3D model" tab.


1

I've had a quick go - it's hard to be more precise without measurements, and it should be stressed that the actual bent shape of the metal is very weird, and difficult to model. Hopefully this will give you a method to get started with, however, and you can adjust spline handle lengths and dimensions etc. as you go. The steps go as follows: Model the 'non-...


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