information on graving on aluminium padlock

i would like to engrave on a aluminium padlock but when we engrave the pointer does mark twice on each letter.

i would like that it would that the tracer would run only once.

witch font can i use

the dimension of the surface is 30 mm with and height 10 mm

for an example the mane to wright is MAINTENANCE

THANKS

 

thanks for your reply. the thing is that I am looking for a single-line font in the software and I can't find one.
do you have an idea for a font?
thanks for your help.

 

is it possible to add font to cam.openbuilds.com? does it support the single line fond?

 

ok, thanks for your help