Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.
First time visiting? Here are some places to start:- Looking for a certain topic? Check out the categories filter or use Search (upper right).
- Need support? Ask a question to our Community Support category.
- Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
- Be respectful, on topic and if you see a problem, Flag it.
If you would like to contact our Community Manager personally, feel free to send a private message or an email.
circular pattern defining overall diameter based on count
John_Stutz
Member Posts: 4 EDU
Trying to create a timing gear of rough overall diameter based on how many teeth will come close to that diameter. For example, I need a roughly 203mm diameter gear, knowing the tooth spacing is 5mm I created a circular pattern of 124 tangent circles that fits within the rough 203mm diameter. The count defines the overall final diameter of the gear. I want to use the count number (124x) to drive a circular pattern feature to cut the teeth. Variable studio does not allow the use of the count in a sketch pattern to drive anything. It can be solved by working backwards but that can't be the only solution. It seems to come to odds with Onshape's "deterministic regeneration architecture".
0
Answers
Hi @John_Stutz, here is one approach you could try:
- Within your sketch, constrain only 2 circles to represent the pattern.
- Dimension the angle between them with the calculation 360 / qty.
- You can then use the circular pattern feature to pattern the holes out side of the sketch if needed.
https://cad.onshape.com/documents/47c994f5a5c902fbfbfca2d8/w/fcf6de2db517cec141f3520a/e/108806d7fa108ccf4b5bc2de?renderMode=0&uiState=63eb88165825ce64cdc790e4Learn more about the Gospel of Christ ( Here )
CADSharp - We make custom features and integrated Onshape apps! Learn How to FeatureScript Here 🔴