nope 4 unused wires not connected and each had heat shrink wrap on them

will dig the original stepper out when i get home from work and post some photos

i would love some further guidance

yep we measured all 4 of the not connected one and they were not connected to the machine.

But the eexisting stepper that came from denford only had 4 coils wired not all 8

angel-tech wrote:I don't think you should have wired it so that 4 coils were not used, the coils are usually wired in series or parallel, but i'm pretty sure they're all used.

they weren't all used on the original stepper we checked

I still have it to be fair

is the stepper getting hot (too much current). Check the connection box is not full of coolant (more likely to cause the drive to fail). Do you have the tension on the belt too tight. Is the stepper full of coolant. stepper was an exact match for the original one that came with it tom and didn't no...

Martin wrote:I would check the wires from the motor. Look for fraying which would cause a phase to short to ground.

ok wiring is fine, it is a brand new stepper so

you can get them new from Coventry tools I think it is

um ok thanks, what check it all the way back to cabinet?

all thoughts welcome

about two months ago the x stepper on my triac died, got a new one. well last night my brand new 2 month old stepper died.

im aware steppers are pretty hard to kill, anyone got any suggestions? could it be the x parker sd2 drive card causing this?

anyone interested before it goes on ebay?

ive got a nikken BT35 tool holder with 5/8 (16mm) collet in it for sale

good condition, not sure what its worth so open to offers

As I don't know the spec of the current strippers in the triac at the moment it's very to buy a new one.

Anyone got any thoughts on if this is a suitable replacement

MY34HY0-5

http://astrosyn.com/section.php/55/1/my34hy_series_1_8

Measurement wise it looks the same as current

It's proving very hard to get a suitable replacement, current shaft is 9.5mm all New nema 34's are 12-13mm

Can anyone help, does anyone have a triac stepper spare?

Need one urgent

If I get a bigger shaft then the cogg/pulley won't fit

Sadly it is yes.

With just a light bit of pressure on the cog it's stalling so it needs to be replaced

Turns out I need a new stepper motor on my triac, when under any sort of load even light it's stalling.

I don't want to replace the drive card or stepper housing can anyone recommend a replacement?

I do have an urgent job but that's out the window now

I haven't no, at some point I want to do a mach3 conversion and add spindle feedback.

I'll have to get a tacho and see.

But as the label on the side of the cabinet reads this doesn't seem these as other starmills

Well on mines it's set to 5500rpm

Here's the label off the side of the cabinet

got a starmill with atc and the label on the side is different to the one I have without an atc. the motor on this one reads 0.6hp and 0.5kw the info sheet for starmill say max of 4000rpm but the denford software installed on the computer with this starmill says 5500rpm. anyone shed any light on this?