greetings! I have a great workstation using a Quatro video card, 12 gigs of memory. However when I create linear patterns from extrudes and fillet, it runs really slow and takes forever to the see the results. Picture a plate with small symbols patterns up and down on a 5 1/2 by 5 1/2 plate which is Two sided. I added more memory (12 gigs) and video card has 4 gigs. Still running slow. I would love to find out why its running slow.
thanks.
Thanks! for the quick answer. That is a bummer because linear patterns is something I would be using all the time. Is this true for pattern sketches as well as apose to patterning extrudes and fillets at the same time.
What CPU speed?
5-1/2 inches or feet?
How complex is the feature being patterned?
How many instances in the pattern?
Are you using the Geometry Pattern option whencreating the pattern?
What is the Virtual Memory set to?
Are you using the correct recommended graphics driver? (Which Quadro card?)
Which OS?
Do you have the Aero theme enabled?
Hi Fern,
Welcome to the forum.
As silly as it sounds, moving the features around in your feature tree can have a drastic effect on the performance of a complete rebuild.
I had a play around with one of my models on Wednesday, which used a boss extrude, two cut extrudes and a wrap.
One of the cut extrudes uses a patterned sketch and was initially second in the tree below the initial boss extrude, then the second extrude and finally the wrap.
I wanted to know how much it would effect the rebuild time by moving that first cut extrude around in the tree.
After a few tests, I deleted the pattern of the sketch in cut extrude1, and used a feature pattern instead, then played around with that.
Please see my results:
| Feature Tree Order | |||||
| Test 1 | Test 2 | Test 3 | Test 4 | Test 5 | |
| Boss Extrude 1 | Boss Extrude 1 | Boss Extrude 1 | Boss Extrude 1 | Boss Extrude 1 | |
| Cut Extrude 1 (Patterened Sketch) | Cut Extrude 2 | Cut Extrude 1 | Cut Extrude 1 | Cut Extrude 2 | |
| Cut Extrude 2 | Wrap 1 | Pattern 1 (Cut Extrude 1 Pattern) | Cut Extrude 2 | Wrap 1 | |
| Wrap 1 | Cut Extrude 1 (Patterened Sketch) | Cut Extrude 2 | Wrap 1 | Cut Extrude 1 | |
| Wrap 1 | Pattern 1 (Pattern of Cut 1) | Pattern 1 (Pattern of Cut 1) | |||
| Rebuild Time (Seconds) | 35.72 | 9.47 | 128.64 | 106.72 | 105.65 |
As you can see, the time difference is huge, and my machine is no slow coach (get around 60 seconds on Anna's punch hole test) the pattern is of around 450 instances, and quite a complex sketch, I really wanted to test it.
So from the results, its pretty obvious that I would have my feature tree in the order of Test 2.
I know that if you have many features in your tree then testing each aspect would not be viable, but, once your model is complete, hit Ctrl + Q, check the 'Statistics' and what ever is taking the longest, generally have that as far down the feature tree as possible. Hit Ctrl + Q again, check your statistics to see if it has improved your rebuild time.
I hope this will help a bit.
Phil.
Phil,
Thanks for running the tests and posting the results. Most interesting!
I'm really surprised that the feature pattern is so much slower than the sketch pattern. Usually sketch patterns are slower than feature patterns. Do you have "verification on rebuild" turned on? If so, it would be interesting to see the results if you turn it off. (Or on, if you have it off now.)
Jerry Steiger
Hi Jerry,
That surprised me also.
Verification on rebuild is turned off. If I get chance I will run the tests again with it on and see what effect it has.
I have just run 'Test 2' with Varification on rebuild turned on, and it came in at 40.50.
If I find the time to complete all the tests again, I will, then let you know the results.
Phil
patterns in SW are slow. no way around it. it just plain stinks! you could have a terabyte of ram and it wont matter.