topic Re: This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it? in 3D Part & Assembly Design

This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it?

akoulidis — Fri, 07 Dec 2018 20:16:14 GMT

I am working in PTC creo Elements/Direct Modeling 6.0. This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it?

What should i do?

Re: This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it?

FriedhelmK — Thu, 13 Oct 2016 18:28:20 GMT

Hi Alexis,

if you want to work on a part with the standard resolution "1.0E-6 mm" (see part property) with a workplane ( supose you imported geomery) with resolution eg. "1.0E-4 mm" (see workplane property) it will not work.

Either you down-change the resolution of your part in part properties to the resolution of the profile/workplane or you re-draw the profile in a new workplane in the resolution of your existing part.

I would suggest the 2nd.

Parts with lower resolution in your constructions will cause problems in the future.

Good luck

Re: This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it?

GaryLinscheid — Thu, 13 Oct 2016 18:34:23 GMT

One trick I have found, if you are working with an imported model, create the workplane without referencing the imported model and prior to projecting any 2D from the imported model, draw a line. This will keep the accuracy of the workplane at 1.0E-6 mm. The projected 2D may require some trimming to clean up the vertexes.

Re: This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it?

ThomasKirkman — Thu, 13 Oct 2016 19:51:52 GMT

Unlike parts, I found that I could increase the resolution of a workplane.

Re: This Error appears to me every time when i want to add helix ''invalid accuracy combination, cannot generate/modify part more accurate than profile'' how can i fix it?

akoulidis — Sat, 07 Jan 2017 08:24:27 GMT

Thank you very much!!