shape something on plexi/perspex that is not an intricate shape ie shape of
a tear drop?

looking for suggestions but at the mo the 12GBP Aldi bench grinder is
winning. :-)

--
Sir Benjamin Middlethwaite

"The3rd Earl Of Derby" wrote in message
. uk...
shape something on plexi/perspex that is not an intricate shape ie shape
of
a tear drop?

looking for suggestions but at the mo the 12GBP Aldi bench grinder is
winning. :-)

--
Sir Benjamin Middlethwaite


Suspect you may get a melting of the plexi/ perspex and a rapid "blinding"
(filling of the cutting edge voids) of the abrasive wheel if you use the
grinder method, attractive as the price may be. Maybe it won't happen but I
suspect it will.

You don't mention size of the teardrop and this could have influence on the
method best used.

If it's a small teardrop handtools it may be applicable to hacksaw to
approximate shape and then file to precise shape needed. If larger then I
think I'd try an electric jigsaw on a low speed, speed too high and plastic
particles likely to adhere to the blade or surrounding area. If the shape
doesn't have to be too precise a jigsaw finish may be all that's needed. If
precision is needful then I'd leave an allowance and finish by filing.

Genuine perspex is normally supplied covered with a film to help avoid
scratching whilst cutting. If the material you use has no coating then
you'll probably need to exercise your ingenuity to fix some sort of
protection to the sheet prior to cutting, as well as placing the sheet on a
non-abrasive surface whilst cutting.

Oome wrote:
"The3rd Earl Of Derby" wrote in message
. uk...
shape something on plexi/perspex that is not an intricate shape ie
shape of
a tear drop?

looking for suggestions but at the mo the 12GBP Aldi bench grinder is
winning. :-)

--
Sir Benjamin Middlethwaite


Suspect you may get a melting of the plexi/ perspex and a rapid
"blinding" (filling of the cutting edge voids) of the abrasive wheel
if you use the grinder method, attractive as the price may be. Maybe
it won't happen but I suspect it will.

You don't mention size of the teardrop and this could have influence
on the method best used.


Large tear drop.

Actually the fine abrasive wheel is doing a better job than the tools you
have suggested(have tried hacksaw/hand file) it does leave a residue around
the edging,but once it has hardened it just flicks off and leaves an almost
flat surface.
Once I've finished the profiling on the BG I'll file for perfect finish.

I've cut two cardboard templates out and taped them to the perspex then
grinded the perspex to near the taped edges and then will move tape to the
near finished area to grind where the tape was.

Thanks for input.

--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
shape something on plexi/perspex that is not an intricate shape ie
shape of a tear drop?

One of these
http://www.handytools.co.uk/acatalog...anders_30.html

Didn't you ask the other day what they were good at?


--
Dave
The Medway Handyman
www.medwayhandyman.co.uk
01634 717930
07850 597257

"The3rd Earl Of Derby" wrote in message
. uk...
shape something on plexi/perspex that is not an intricate shape ie shape
of
a tear drop?

looking for suggestions but at the mo the 12GBP Aldi bench grinder is
winning. :-)

Linisher

The message
from "The3rd Earl Of Derby" contains these words:

shape something on plexi/perspex that is not an intricate shape ie shape of
a tear drop?

Do you mean a 2D shape cut out of a slice or a full 3D shape?

--
Skipweasel
Pay no attention to that man behind the curtain.

The Medway Handyman wrote:
The3rd Earl Of Derby wrote:
shape something on plexi/perspex that is not an intricate shape ie
shape of a tear drop?

One of these
http://www.handytools.co.uk/acatalog...anders_30.html

Didn't you ask the other day what they were good at?

Yes,but it was too big for my pokey little hole of a workshop...cant swing
the cat in there.

--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
shape something on plexi/perspex that is not an intricate shape ie shape of
a tear drop?

looking for suggestions but at the mo the 12GBP Aldi bench grinder is
winning. :-)

--
Sir Benjamin Middlethwaite

Rotozip thingy works a treat on all plastics/perspex and the like,
bloody handy with a tile bit fitted too !!

Got mine off ebay !!