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Hi kevh:
On our standard HAAS machines VF0, -2, -3 which have 36" wide cabinets
we space the back of the door when closed 39" from the wall. The heat
exchange area protrudes somewhat back of the door but this is no problem.
This provides 1" to 2" of clearance when the door is at 90 degrees.
You certainly want to be able to swing the door 90 degrees open.
On memory: At least 1 megabyte for general use. If you have large
programs, meaning many megabytes, then can you afford enough memory
to allow fully loading your largest or typically largest program(s)? If not then
1 meg maybe a good choice.
If you can not fit an entire program in memory, then it must be broken into
parts or use drip feed. I personally do like like a mechanical disk for memory
on any machine tool. It is ideal to have the entire CNC program stored in
CNC RAM memory. This avoids problems from errors during machining from
data transfer. If the entire program is in CNC memory, then after it is loaded
you can send it back to the source, do a file comparison and have knowledge
that the data in the CNC memory is exactly what was sent from the central
computer.
In drip mode HAAS uses available memory as a drip mode buffer. So if you
do not keep much of your memory full, then you have a large buffer that
can average variations in machine useage with respect to drip feed data
input. I have heard that Fanuc only buffers 10 bytes or thereabouts.
If the RS232 input is set for 7 data bits, Even parity, and 1 stop bit,
then I can transfer about 600,000 bytes per minute at 115.2 kbaud.
We can transfer RS232 data at 115.2 kbaud over long distances (4000 ft)
with very low error rates.
The HAAS machines are very easy to work with, and are quick and easy for
data transfer.
In general I would prefer a fully enclosed machine with a side mount turret.
If you are doing contouring you may want a high speed spindle.
Compare HAAS to other machines for operator panel convience and you will
want a HAAS for job shop applications.
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