Upgrade? Chinese CNC Machine

[Ricardoco]

Rick,

Been toying with the steps and velo etc - getting close but still get it ovalling (if that's a word) on the Y instead of a circle, that is my vernier is showing me right dimensions for a 52mm circle on the X but narrower on the Y - might knock it down some more and see what that does.
As for Driver Test, yep ran that and it's fine, the machine is a not so old PC that was fresh installed with XP SP2 and Mach3 - nothing else on there - not even a virus checker seeing as it's not net connected it's not needed.

I use Aspire 3 on a different machine to create what I want

Addon bit:



As you can see, it's not a circle??? oh and I started videoin' as an afterthought

Ok thats better than you had before, so that means we are in the right track, i wonder if both the ballscrew are the same. could you do me a favour and cut a strait line 100mm long on the X and 100mm long on the Y and then measure them and let us know what you get.. Just Like Martin suggested.


Rick

[Carlb1058]

100mm on the Y I get 52mm
100mm on the X I get 42mm

[Ricardoco]

100mm on the Y I get 52mm
100mm on the X I get 42mm

now we are talking.. thats why it dosnt do a circle

What have you set your X to in motor tuning,
and
What have you set your Y to in motor tuning,

Rick

[Carlb1058]

now we are talking.. thats why it dosnt do a circle

What have you set your X to in motor tuning,
and
What have you set your Y to in motor tuning,

Rick

Slowed them down to as per your previous suggestion - one thing I did notice when it was doing it was the X was smooth in movement, the Y however seemed to jerk, as if going for example 10mm stages, a barely but still noticeable pause then continuing on?

[Ricardoco]

Slowed them down to as per your previous suggestion - one thing I did notice when it was doing it was the X was smooth in movement, the Y however seemed to jerk, as if going for example 10mm stages, a barely but still noticeable pause then continuing on?

Well lets see if i can get the math sorted to get them cutting the correct amount first.

Rick

[Ricardoco]

Slowed them down to as per your previous suggestion - one thing I did notice when it was doing it was the X was smooth in movement, the Y however seemed to jerk, as if going for example 10mm stages, a barely but still noticeable pause then continuing on?

LOL my brain has been doing loops here.. What size cutter are you using..

Rick

[Carlb1058]

LOL my brain has been doing loops here.. What size cutter are you using..

Rick

20 deg - 0.5F - 3.175 diameter coz that's what was in it when I wandered out to the shed this morning :)

Onwards and upwards to try these new figures - digits x'ed

[Carlb1058]

20 deg - 0.5F - 3.175 diameter coz that's what was in it when I wandered out to the shed this morning :)

Onwards and upwards to try these new figures - digits x'ed

97 on the X 86 on the Y or so my vernier says