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.
Need help with creating a counter sunk hole.
mcconnell113
Member Posts: 74 ✭✭
So i know exactly what scew we are using but I don't know where i would go to find the exact dimensions I would need in order to create a flush screw head once it's counter sunk. It would be this screw but different length.
https://www.mscdirect.com/product/details/67560169?rItem=67560169
tell me if this would be correct with my thinking. first off i measured the head to be half inch diameter and i see that it is 82 degree head so id go from the top face with a sketched hole down to a 1/4 hole at 82 degrees? Also if you didnt have a screw to measure how would you know how to draw the counter sinks? Lastly what is the best way to counter sign just use fillet or have two sketch planes and loft to one another? I'll probably answer all of my own questions in the next 5 minutes.
https://www.mscdirect.com/product/details/67560169?rItem=67560169
tell me if this would be correct with my thinking. first off i measured the head to be half inch diameter and i see that it is 82 degree head so id go from the top face with a sketched hole down to a 1/4 hole at 82 degrees? Also if you didnt have a screw to measure how would you know how to draw the counter sinks? Lastly what is the best way to counter sign just use fillet or have two sketch planes and loft to one another? I'll probably answer all of my own questions in the next 5 minutes.
John McConnell - Let's change things.
Saplingstore.com
Saplingstore.com
0
Answers
-
ive managed to fine the hole/countersink option but still isnt there different head angles that come into play or are they all the same. Also is it a 45 degree angle if its just automatically putting an angle in?John McConnell - Let's change things.
Saplingstore.com0 -
At present, the Hole feature in Onshape dictates the head angle (I think it's currently 45 degrees)
If you want another angle, you will have to model the hole, from a sketch lying on your desired hole axis, as a Revolve/Solid/Remove1 -
@andrew_troup has given you the answer. The sketch should give you the angle,size and depth you require, then revolve/solid/remove would seem to fit the bill.
0 -
okay perfect thank you. I've actually done that before when i modeled a corner rounding too i just haven't messed with design in a while so the ways of going about it have slipped my mind. Thank you guysJohn McConnell - Let's change things.
Saplingstore.com0 -
A decent countersink screw drawing would dimension the "virtual sharp" intersection of the line representing the silhouette of the cone with a line across the flat end of the screwhead. Naturally screws are not provided with a sharp edge, so the Outside Diameter of the head is always somewhat less than this.
The reason for the VS dimension is to be able to size the countersunk hole (off the bat, and/or without having a physical screw to try) so the head will be flush.0 -
do you have an example drawing so i can visualize what you're trying to get across to me? thanksJohn McConnell - Let's change things.
Saplingstore.com0 -
You can find all fastener dimensions in the machinery's handbook.
0 -
0
-
@andrew_troup
Thanks you so much that helps being able to see it. I successfully drew and machined the countersink.
John McConnell - Let's change things.
Saplingstore.com1
