Re: [CAD_CAM_EDM_DRO] Re: Software options

Peter Reilley wrote:

>>I understand that TurboCad has a similar limitation on moving dimension
>>lines around to make a drawing readable.
>>But I stand to be corrected on that.
>
> In TurboCAD you can move the dimensions far away from
> the measurement point as you want. That way you can
> avoid having them pile up on each other. Is that what
> you were concerned about. It is quite amazing how
> you can flip the dimension around to find a suitable
> placement.

Simple moving of the dimension is not the problem, it's to do with
removing multiple construction lines, breaking construction lines,
putting in stepped dimensions, and all the other 'nice things' you can
do with paper and pencil. I converted my own draftsman to CAD many years
ago - when machines were more prone to crashing - and after one such
crash he commented "It's just like a drawing board, one sneezes and all
the lines drop on the floor" :) Now he is creating advanced aerospace
models and the documentation accuracy has to be to a very high standard.
Something that required an office with several draftsmen in the past,
but which now he produces with a few clicks ;)

> One objection that I have is that if you dimension something
> and then you later change that something the dimension
> does not reflect the change. Is that the normal way this is
> done. I am a CAD newbee so I don't know how other
> CAD packages do it.

One niggle with Pro-engineer to Autocad porting is that while everything
is SET to metric, one ends up with a scaling of all the dimension text
by 25.4 :( But a quick rescale when that happens and the dimension text
is back to what it should be. So changes in size scale all of the
dimensions. Trying to do some of that in Dolphin has been giving me what
I would describe as rounding errors, where 'round numbers' develop a
fractional part. Basically dimensions SHOULD scale with changes to the
base lines, but some packages do not 'link' the text, and just create
fixed text dimensions which then need to be edited if the base drawing
changes.

--
Lester Caine - G8HFL
-----------------------------
L.S.Caine Electronic Services - http://home.lsces.co.uk
Model Engineers Digital Workshop -
http://home.lsces.co.uk/ModelEngineersDigitalWorkshop/
Treasurer - Firebird Foundation Inc. - http://www.firebirdsql.org/index.php