Upgrade? Chinese CNC Machine

[John S]

Well spotted and that also answers the question of the pot on the front so scrap that query.

The reason I wanted one is that is often quicker, faster, cheaper in the long run to buy off the shelf components than build.
You then also have the facility to just ship a component out in the event of a fry up.

However in this case it's not what I was looking for.

[Jonathan]

You want something like this then?

10000uF 50V X4 Rectifier filter power supply board kit s-8 | eBay

Just search on eBay for 'power supply rectifier' and you'll find plenty, although they are a bit expensive.

Edit: If you're happy to solder it then..
http://www.ebay.co.uk/itm/63V-2200UF...item4abe9b8dad
http://www.ebay.co.uk/itm/63V-2200UF...item33673235b2

[Swarfing]

Straight lines

God knows where that came from?

[martin54]

If it were powered by a meridian twin it wouldn't have come from China would it lol,

[Ricardoco]

Hi there, try and slow things down a bit 200 steps per and velocity 200 accel 100 and see if you get different results, also what are you using to Generate your G-Code. Also have you run the driver test for mach to see if it is running as should be. Is the machine dedicated to CNC or are you running other stuff in the background..

Rick

[Carlb1058]

Hi there, try and slow things down a bit 200 steps per and velocity 200 accel 100 and see if you get different results, also what are you using to Generate your G-Code. Also have you run the driver test for mach to see if it is running as should be. Is the machine dedicated to CNC or are you running other stuff in the background..

Rick

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

[martin54]

If you have been playing about with the steps does in now move the correct distance in each direction? Have you tried just moving an inch or two in a straight line in each direction doing each axis separately? Did you remember to hit save on the motor set up after you had changed the steps on each axis, simple thing but easy to forget to do when things aren't going as planned lol.

[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

[Carlb1058]

If it were powered by a meridian twin it wouldn't have come from China would it lol,

Good point although the Hinkleys are made in Thailand