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alpsat
10-18-2004, 01:29 PM
Hello,

I am about to buy PRTalpha 120-60 , dimensions are ideal for my work
(signs, engraving, cutting). Being in France, I never saw the machine
and I have a doubt about the guidance of the carriage on axis X for
example. are the guides sufficient to avoid the torque
reaction which applies during the advance of the machine to X?
are the rails which guide the carriage are machined (rectified)?
Could you deliver your opinion of user to me on returned work with the
120-60, is this rather precise and end for engraving. When you cut
out over a big length, manage to join two fine features correctly
(cutting of letters)? Could you advise me on the tables with
depression (maintenance of small parts)
Thanks for your answers.
Greetings
Jj Beccaria

fleinbach
10-18-2004, 04:13 PM
Just as a computer has no value without the information installed by people. As a musical instrument can only produce beautiful sounds in the hands of a skilled preformer. The Shopbot is capable of producing componants, or whole assemblies of componantes, as acurate or finely fitted as is the skill of the operator running it.

I have personaly cut parts from 61 X 121" sheets of MDf creating arched alcoves for the home theater rooms I build. These alcoves are 52" wide by 84" tall. I then apply trims to fit the arches. To align these trims I put 1/4" holes in the main panel and mateing holes in the trim pieces. The widest spacing between holes is 82" The holes are for dowel pins. The trims are made from 3 pieces and the joints fit perfectly.

You can see an example here http://theaterrooms.com/Danker.htm