topic Absolute accuracy recommendation for consumer electronics in Creo Modeling Questions

Absolute accuracy recommendation for consumer electronics

dmartin — Sat, 08 Nov 2014 00:06:47 GMT

Everyone,We could use some advice regarding what other companies, particularly those in consumer electronics, are using for accuracy values in Creo. We've been using relative accuracy as a default, and of course that comes with a lot of issues. We're exploring values for absolute

Absolute accuracy recommendation for consumer electronics

bokm9606 — Sat, 08 Nov 2014 00:08:42 GMT

.001 mm absolute is what I have been using for tiny parts

Absolute accuracy recommendation for consumer electronics

bfrandsen — Fri, 27 Oct 2017 00:55:15 GMT

Absolute accuracy recommendation for consumer electronics

dgschaefer — Mon, 10 Nov 2014 14:43:39 GMT

I've been using 0.0001" / 0.00254mm (the default when choosing absolute accuracy) for everything since I started on Proe back in 1996, rev. 16. It has generally served me well; I've had few occasions where I needed to tweak it. My biggest accuracy related problems have been with files created with relative accuracy.

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Absolute accuracy recommendation for consumer electronics

GaryPitt — Mon, 10 Nov 2014 20:24:33 GMT

Hi Dave - we make injection moulds and have been using 0.0002" (0.005mm) as
our default accuracy for 15 years.

Regards

Gary Pitt
Columbia Plastics Ltd
19320-60th Ave
Surrey, B.C.
V3S 3M2
604 530 9990 Ext 236

Absolute accuracy recommendation for consumer electronics

jmoody-2 — Mon, 10 Nov 2014 21:47:50 GMT

Discussion of absolute accuracy should include the typical part size, no?

John

Absolute accuracy recommendation for consumer electronics

PaulMailloux — Mon, 10 Nov 2014 22:18:39 GMT

Same here, .0002” absolute accuracy for over 17 years now… with an occasional deviation by a .0001” to either side… we stay clear of relative accuracy.

Paul

Paul Mailloux Cad/Cam Applications Engineer

NyproMold, Inc.

144 Pleasant St, Clinton, MA 01510 ▪ www.nypromold.com

RE: Absolute accuracy recommendation for consumer electronics

merrill.rosenow — Tue, 11 Nov 2014 14:06:19 GMT

In Reply to John Moody:

Discussion of absolute accuracy should include the typical part size, no?

Yes and no, it has to do both with the size of the part, and the size of the smallest features you want to include with them. These features create small vertices and curves which affect part stability. We make sheet metal parts and use about 0.0025" (the smallest size typically available given our dimensions).