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Subject: Re: laser cutting fonts

Date: 04/12/03 at 2:57 PM
Posted by: Raymond
E-mail: rwfalcke@telkomsa.net
Message Posted:

In Reply to: laser cutting fonts posted by David Toebaert on 09/13/00 at 1:26 AM:

Dear Sir

Iam looking for standard laser cutting fonts eg (stencil BT) that can be used in Autocad, my laser cutter make use of cad 13LT, and allthough the stencil font looks like stencil font, it is not a pollyline/arc and is not compatable with the laser cutting machines, eg. Firstly the Stencil font can not be edited or exploded, therefore one can go into Corel convert the standard stencil font to curves then export as a .dxf and import to Autocad. NOW THIS is where the problem arises, then when in autocad you now have a letter eg "A" that comprises of 100's of striaghtlines.

2. Now the laser cutter will now cut the staight line instead of an arc or polly line. 3. when these stencil fonts are saved the file sizes are far to big to e-mail and cause major problems for the laser cutter.

4. The laser cutters do talk of FILTERS which take some of these lines out but this is not good enough.

5. Is there software available to bye pass all the problems mentioned or do you surgest one traces over the stencil font in cad creating nice gentel arc's and polly lines????. If you could point me in the right direction or help in this matter it would really be appreciated. I have even conted Corel Draw help line and they where not able to solve my problem, even contact AoutoCad agentcies who understand my problem but are unable to advise.

PS there are also laser cutting limitation of tolerences eg 0.1-1.0mm so if one was to cut a standard STENCIL BT font out of steel and you wanted to have the hight of the letter 5-10mm high there are laser problems and matreial problems where by if the spaces are too small the intire letter will drop out defeating the objet of the stencil font.

thanking you kindly

Raymond


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