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Hello, I am holding a master degree (5 years) in Mechanical Engineering from University in Belgium and have gained now 13 years of experience. I run also my own mechanical design office in Belgium since 7 years now. My wish is to open a new office in San Francisco Bay Area as a Sole...

Hello, I have created a new axis system and I would like to know the CG of a body relative to this new axis but the measuring tool kept on giving the result to the absolute system. Thank you, DVE

Hello, All bodies within the file seem to be locked : I cannot select any edge to perform a radius ... Do you know how to unlock ? Many thanks

Hi Everybody, When using the sketcher, it is sometimes difficult to make the difference between the objects belonging to the sketcher plane and the objects "in the background" ? Is there then a possibility to hide the elememts (or filter) in the backgrounds ? (Of course, without to have to go...

Hi, When I try to use the draft analysis, I have the message : "Wrong view mode. Change it to material mode to see the analysis results". Yes, but how to change ??? Thank you for help, DVE

Hello, I am looking for any information about Design & Calculation of Hirth coupling. (Is there some standard existing ? How are defined the teeth ? Maximum allowed torque ? Serration by bolt ?) ... Last but not least : how are reacting Hirth coupling when the shaft is under flexion load ...

Hello All, I have 2 right-angle shafts to connect, the driven must rotate at half the speed of the driver one. Worm gears are generally recommended for big reduction ratio. So, can I use a worm gear with the small ratio (2)in this case ? The distance between shafts is 45 mm. So, I found the...

Hello, I am searching for a steel alloy which should have nearly the same thermal expansion coefficient as aluminium alloy (--> alpha = 22.10-6 / °C ). - Does anyone know a supplier and/or steel center service ? - In which applications are used such a steel alloy ? Thank you very much for...

Hello, What is the best approach to design a torsion shaft to cope with crankshaft torsional vibration ? As an exemple, let's consider the Griffon (Rolls Royce)engine with a torsion shaft between the propeller gearbox and the crankshaft. I expect the best would be to have an expended model...

Hello, I have been suggested to use a cadmium coating on cylinder walls. I have the impression cadmium is quite ductile, so it is maybe not the best way to cope with wear ... What do you think ? Thanks, DVE

We have more than a thousand of 2D.model under Catia V4. Each 2D drawing is using a detail as 'engineering drawing block' (Company name, logo, date, description, ...). We need to change the company name and logo. Of course, we can make it one by one using the function 'Detail-manage-replace' but...