topic Re: threaded hole, drill size not good in Fusion Support Forum

threaded hole, drill size not good

thebrown.ml — Mon, 14 Dec 2020 15:23:34 GMT

Hello, I just model a single threaded hole in a shaft and the drill size for the thread is not good. 1.33 is for the 1-1/2- 6 UNC but my threaded size is 1-1/2 - 16UNF. I should have 1.42. The size parameter is not accesible from the hole command. I can modify by the parameter tool only. What I'm doing wrong? What is the logic behind this?

I tried with others tap size and the drill size remain the same betwen each pitch size!

Re: threaded hole, drill size not good

HughesTooling — Mon, 14 Dec 2020 15:39:48 GMT

The problem is the dialog doesn't update when you change the pitch. The hole that's created will have the correct minor diameter (mid limit).

Mark

Re: threaded hole, drill size not good

thebrown.ml — Mon, 14 Dec 2020 15:46:10 GMT

Is it possible to update the dialog box? When I select an threaded hole size, this is always the coarse pitch first. So, everytime I need an other pitch size I need to enter the parameter tool to update the drill size?

Re: threaded hole, drill size not good

HughesTooling — Mon, 14 Dec 2020 16:11:08 GMT

The problem with the dialog has come up a few times but I hadn't notice the size in the parameter manager is also wrong! @jeff_strater Has this bug been logged?

@thebrown.ml Do you need to change the size listed in the parameter manager? The size of the hole created in the model is correct, is the hole call out in a 2d drawing correct?

Although the dialog and parameter manager are wrong the hole in the model is correct. Are you using the parameter as a reference somehhere?

Mark

Re: threaded hole, drill size not good

thebrown.ml — Mon, 14 Dec 2020 16:16:16 GMT

The hole call out in 2d drawing is not correct with my tests but as you said in the 3D model everything is fine!

To change the hole call out, I changed the hole size in the parameter tool and this is OK! I could also just overwrite the hole call out text.