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08-07-2017 #1
is it dependant on cfm from compressor
at what psi / bar do you run a plasma
can you hold the material to be cut on a bed of nails type affair using nuts and bolt
could you then magnetize the bolts
m4 bolts @ 3'' sticking up through a threaded plate at 2'' spacing, 'just' laying in the trough
do you 'have' to use a machine torch
is mach 4 now good for the novice
are more people going servo - even at 200 to 400 watts
are there simple i.e. beginner set up video's for mach 4 compliant controllers
IF running ball screw gantries on a plasma, is there a beneficial screw pitch to get the speed up
I am going to buy
two 1000mm
one 900mm
and a 300mm
bosch rextroth gantries
I suppose I am going to link the two 1000mm gantries with a rubber belt
do I go for a 50mm round 24 tooth htd 8mm pitch pair of gears and belt
what about collision break away attatchments for the torch, is there an off the shelf option
so in short, a 1000mm by 900mm bed using off the shelf gantries
200 watt Panasonic minas a4 servo's and drives
DON'T KNOW AS YET WHAT CONTROLLER
have mach3 license and sheetcam
this is what I am after but its belt drive, I am going to use second hand ball screw versions
bit like that buy I want it so the water trough is sitting on the floor and I can have a top on the table
so I have to link the x drives with a belt - 'that maybe the determining factor'?
any one use the stuff?Last edited by nobby; 08-07-2017 at 01:02 PM.
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09-07-2017 #2
I'll go for a couple of these. Are you asking about a straight forward tank or with the ability to raise and lower the water level via compressed air? Compressor running at about 8 bar should do. The air should be oil and water free. Bolts sticking up should be ok as long as the plate you are cutting is reasonably flat. Just make sure the tops of the bolts are as level as possible. A machine torch would be required. A magnetic torch collision device would be relatively easy to make depending on how your are going to do the initial height setup for the plasma. If you are using arc voltage control for cutting height control then do you need an initial height set control as well? If not and you are going to set the height at the start and either manually adjust it or let it cut then the collision device is easy enough. Two machined plates with magnets embedded in them and a couple of pointed grub screws through from the back plate to locate the front plate the torch is on.
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