to make things a bit easier i use the limit switches as the home points rather than the datum/proximity switches.

Hi Dave, got the orac sensor working eventually. Nice to see you got the triac, lovely machines. This sounds like "trying to teach your gradma to suck eggs", but if you need any help give me a shout, i've done a few.

Tom.

hi, i'm interested in the drive rack. Would you sell it alone, or are you selling it all as a job lot. Any ideas on costs.

i'm fairly sure it has been sold.

In laymans terms a router will normally be around 5 times faster than a mill, but the mill will be 5 times more accurate. Because the router axis moves 5 times more per step of the motor than the mill. This is due to the stepper motor directly driving the screw on the router, and the pitch of the sc...

i won't be getting to it for at least a week

they came out of working environments but i've not tried them. Since my first Novamill i never try to get the tutor and original software going, just straight into the conversion.

i've not converted a 5 yet, and yes the turret does look like fun to convert.

i'm in Cardiff, so a fair distance unfortunately

i have 3 and they're 1994 models, from the description of yours they sound the same.

well done, but i'm still concerned about the sgr being energised at the startup. Maybe someone can enlighten us.

Hi there, i shall be converting one of these soon.

check the relays, especially the sgr

Unfortunately i have no idea, but a pic of the motor may help. I would expect it's a dc motor, a datasheet for the spindle board would help

on mills, a signal is sent to to the sgr relay which enables/supplies power to the spindle board, and the pot/analogue board varies the spindle speed. It looks like the next step is to check the motor actually works.

I'm suprised the sgr relay is on when you start the machine, is there any other switch for the spindle, maybe on the pot.

going by the micromill drawing it would look like the right one is the sgr relay, but the diagram is for 2000 models, is your machine that new. Unfortunately i don't have a micromill here to look at, but normally one relay is the e-stop and the other is the sgr (which powers the spindle/spindle boar...

press the emergency stop and see which one goes off.

when you turn the machine on does one of the relays click on.

or is one of the relays marked "SGR"