Four different hinge arrangements:
Arrangement A – Single Shoulder Bolt
Arrangement B – Pin with two end screws and washers
Arrangement C – Pin with internal cir clip
Arrangement D – Pin with two external circlips
A useful tutorial for modelling involute gears: Link
Liquid Level Sensors or Float Switches can be used to calculate the volume of liquid available in a bottle or container.
The float sensor will report back the height of the liquid, which can then be used to calculate the volume, assuming the dimensions of the bottle are know.
For simple, cylindrical bottles; the volume will increase directly with liquid level and this should be easy to calculate.However, for bottles with unusual geometry, the relationship between volume and liquid level may need more investigation.
1. Model the Bottle geometry (using “Shell” method).
2. Use “Move-Copy Body” to create a copy of the body in the exact place of the original.
3. Create a new body that completely fills the internal space of the Bottle.
4. Use “Combine” with the “Subtract” feature to subtract one body from the other. The copied Bottle body will be absorbed.
5. Add an Extruded Cut for the liquid level.
6. Create a new Design Study.
7. Create a new Model Dimension Parameter and link it to the Extruded Cut.
(Open Parameters, select dimension on sketch, type in a name)
8. Add a “Sensor” for the Volume of the liquid body.
9. Set the Min, Max and Step values.
10. Run the Design Study.
11. Export the results to Excel. Create a lined XY Scatter graph.
Aligning a fastener in a slot is a typical task in CAD modelling, and with SolidWorks there are number of different ways to do it. This post will look at some different methods that can be used for “mating” a fastener in a slot, trying to identify the method that is most stable and easy to edit. Click the images below to view them at full size.
The top-right fastener has a Concentric mate aligning the cylindrical surface of the fastener with the centre point of the slot feature sketch (below-left).
The middle-left fastener uses a horizontal Symmetry mate, like the fastener before, except this time it is used in combination with a vertical Width mate (below-right).
The final lower-left fastener uses a coincident mate to align the Temporary axes of the fastener and the slot feature (below-left). This is the best method I have found so far, but it relies on the slots having a temporary X-Axis, which relies on the slot being created in the right way.
The above-right image shows two slots – one that’s been created with a “Straight Slot” sketch feature and one that’s been created with a combination of line and arc sketch features. It can be seen that the “Straight Slot” feature has a Temporary Axis through its centre, whereas the slot created with line and arc features does not. I’d be interested to know if this is different in SolidWorks 2014.
The second CAD Animation is of a Push to Close Latch. Created with Solidworks.
The aim of this mini-project was to create some simple Solidworks animations of interesting everyday mechanisms. The first animation – a retractable pen – was created with the help of this Instructable: http://www.instructables.com/id/Giant-Clicker-Pen/