Is there any more information on this?
I've just bought one and was reading through and then it stopped.............
Would love to hear more
Snowy
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Is there any more information on this?
I've just bought one and was reading through and then it stopped.............
Would love to hear more
Snowy
I can run the motors so X,Y and Z all arrive at their target simultaneously, I can read all the buttons and quadrature encoders, I can light the lights and stuff. I can read a sequence of positions and speeds from a serial host then execute them as a tool path.Whether that is of any use to you rather depends on whether this next bit looks like something you could understand...
;
;***********************************************
;
; Home: Go to the limit switches then return
;
;***********************************************
;
Home:
ld hl,0 ; zero coords so we get the return offset
ld (Xcoord),hl
ld (Ycoord),hl
ld (Zcoord),hl
;
ld a,4 ; Set the sequence so it starts
ld (hseq),a ; with a lift
ld hl,NmiHome ; Tune in to the Home service
ld (NMI),hl
;
call NotIdleLoop; ; returns when stepping is complete
;
ld hl,0 ; We started from zero so the position
ld de,(Xcoord) ; counters will have the distance moved
and a ; To get a return co-ordinate we need
sbc hl,de ; to reverse the counts.
ld (mX),hl ; subtract the position from zero
;
ld hl,0 ; repeat for Y
ld de,(Ycoord)
and a
sbc hl,de
Eh?, that looks like Z80 (if I can remember 40 years ago)
It has a 4MHz Z80A with a counter timer chip hanging off the NMI pin, a little feature that keeps you on your toes :tears_of_joy:Quote:
Originally Posted by Doddy
Removed.
I'd rather rather do Z80 Assembler than STM code using HAL, I like to get down and dirty :tickled_pink:
Removed.
Sorry chaps, didn't realise I was feeding a troll :culpability:
Hi Robin,
I had a Specy 48k+ but i was 7 at the time. Not a scoobie.
Do you have any paperwork or manuals you could share? i haven't started stripping it down yet, don't even know if its steppers or servos and if they're worth keeping, what are the collets? i'm thinking a possible swap to linuxcnc to get it moving, whats your thoughts? i could donate the electronic gubbins to you if they'd be off use. i think it's only of use to me as a hardware frame as i don't have the know how for diggin into the electronics of it.
Snowy
It is 400 step/rev steppers so it purrs.
There ar 3 manuals:-
User's Guide
Command reference manual
Service notes (Which includes the full circuit diagram).
I could swap you a set of collets for the front panel with all the knobs and switches on.
You won't be needing them unless you take my firmware hack :sneakiness: