Re: X- Axis won't do as it's told.. FEEDBACK

--- In CAD_CAM_EDM_DRO@y..., "baccus61" <rich5886@o...> wrote:

> Hi Gang,
> I am slowly going bald here as my router has been playing up on

Once again I will humbly bow to the boffins.
Thank you all for replying so soon to my queery and rest assured I
will try ALL of your suggestions and get back to you in a few days as
this will take a bit of time for me. I am currently working 12 hour
shifts and don't get much time to PLAY after work so I break up my
time either working in the shed or tapping on the computer until I am
totally stuffed.
I am sorry for not elabourating enough on my setup so here is a bit
more info (wish I could take a pic of all this for you).
Gecko 201 drives
the power supply for the control circuit is a small 400ma transformer
outputing 8V which is connected to a small board I made up to
regulate the power to 5VDC (7805 IC) with 4.7K pullup resistors
across the parallel port wiring. The negative is wired to pin 25 of
the parallel port for the Gecko's earthing. I was a bit worried
about doing that but it worked. This is my first time with
electronics and it is proving to be daunting but very interesting.
The //port cable from the computer was made up from an old printer
cable I had laying around as the 2 cables I bought only had 8 or so
wires in them (null modem cable? A story in itself) and I had to
change the connector for the Driver box. I will definately check
that again to see if it is ok and outputing correctly.
The weight of my Z axis slide would probably be 8 to 10 lbs (if that)
so I didn't think that inertia would be a problem but I will fit a
small flywheel to it and test again. I suppose adding a larger 32
size motor would have accentuated that problem if it does exist but I
thought at the time the inertia of the larger rotor would have
compensated for that.
I also have a solid state switch that runs the router (very cheap $74
Chinese router but built very well with variable speed......I am
happy with it so far) but that has stopped functioning since the
refit and I haven't had time to look at that yet. (control supply
voltage????)
The cable to the motors was originally a cable for a CCD camera with
sheilded twisted pairs which seemed to work ok but after all the
debate on the wire size lately I have changed to a size 18 gauge 7
wire cable but I couldn't find a shielded one. I will check this out
last as I am severely limited to the choice of wires I can purchase.
This was the only one I could find that was even remotely the right
size and configuration. I had previously wrapped these wires around
a ferrite core to impede stray electric pulses but I don't know if it
made any difference as I couldn't detect any.

Thank you all for your help and valuable time and I hope I am edging
nearer to the pinnacle of my machining acheivements. Now, where are
the plans for that CNC wood lathe. It only needs 2 axis to function.
((The 14lb linear rectifier has been put back in the
cupboard.......FOR NOW.......))
Regards from Richard.