Holes that populate on variable lengths

[Anonymous]

I see a couple posts about this but I can't get the commands to work. Maybe I am confused.

I have a component that is a simple rectangle solid .625" x .354" x variable lengths from 12"-96"

I want to have tapped holes auto post. I have read that I can have fusion round this number but I am not sure how. So for a 12" stick we will have about 2 (10-32 bolt taps) and about 3 if it's 24" and about 4 if it's 48" so on and so forth. It can round the number for example if the unit is 27" it my add 4. 

I was trying to use the rectangle or pattern on path tools but feel like I am on the wrong track and the posts I have read sound like they explain this but I can't understand still. I can do it if I go in and repattern holes after adjust length but I am thinking fusion can do this automatically when I adjust length right?

Thanks

[etfrench]

The dimensions need to be set with User Parameters.  Use formulas in these parameters.  Here is a list of the available functions.

 This thread may help.

[g-andresen]

Hi,

Look especially at the SIGN function as shown in the linked thread by @etfrench  in post 5.

günther

[Anonymous]

Thanks ET. This is basically where I am stuck. Do you know of any videos or examples on this? Keep in mind I have been using fusion for 2 weeks so I am extremely new. I have been stuck here for about a week trying to navigate on my own but I think I am entering something wrong or missing something obvious.

[chrisplyler]

Related Note #1: You can certainly set up parameter expressions that will return a whole number quantity to use in a pattern. The problem (at least last time I messed with doing it, and if they haven't fixed it yet) was that the quantity entered into the pattern settings (entered as a parameter name of course) will for some reason not update with a length change, even though the parameter itself will. So every time you change the length, you ALSO have to edit the pattern in the timeline, to get the number of holes to update appropriately.

Related Note #2: Assuming you want predictable spacing, and depending on how you want the holes to behave upon a length update, you'll want to use the Extents pattern option, and need to carefully establish the First and Last position of those extents. This may require extra sketch elements and a parameter, set up such that you have control over the end distance of the first and last holes that updates accordingly.

[g-andresen · Accepted solution]

Hi,

Here is a file where I practiced the method.

If you look at sketches and timeline and play with the parameters, you will get access to this process.

günther

[Anonymous]

Gunther - You sir are a superstar. I thought I was close. I was not... lol. Thank you all good now!

[g-andresen · Accepted solution]

Hi,

I'm glad if you get on with it.
Nevertheless it would be more comfortable and more versatile if logical functions ( IF;THEN;ELSE.. ) were available.

günther