Upgrade? Chinese CNC Machine

[Swarfing]

Agreed......

[Carlb1058]

why not just follow 1 path at a time then the chap wont get too confused..

Rick

Just turned it over and measured the Y and I get 3 to a cm - whatever that works out to *shrug*

[Ricardoco]

Just turned it over and measured the Y and I get 3 to a cm - whatever that works out to *shrug*

3 turns to a cm yes? What ever they are i suspect the pitch is not the same for x and y

Rick

[Ricardoco]

I get 1500.68 methinks I did summut wrong

Ok

200/ (52-3) x 100
or
200 / 49 x 100 = 408.16

where 200 is the original steps per and 49 is the output cut measurement minus the tool diameter, multiplied but the input cut measurement..


is that a Bit easier?

Its a brain doo'er i know

LOL

Rick

[Carlb1058]

Ok

200/ (52-3) x 100
or
200 / 49 x 100 = 408.16

where 200 is the original steps per and 49 is the output cut measurement minus the tool diameter, multiplied but the input cut measurement..


is that a Bit easier?

Its a brain doo'er i know

LOL

Rick

Just a tad - cheers :) I ended up with 409.62 using 3.175 as the tool diameter

[Ricardoco]

Just a tad - cheers :) I ended up with 409.62 using 3.175 as the tool diameter

Once we have got both axis to move the same amount i can do the math again and give you the imperial equiv, then we can change the system to old school as like swarfing said it could be a yank model. but we will get it for you then of course that will rule out the mechanical and software stuff as the source of your trouble, leaving only the electrics but they may be fine and just need proper BOB and stepper drivers should you be so inclined..

Rick

[Lee Roberts]

(0r 1/8" if you require brain drain )

lmao.

.Me

[Carlb1058]

Getting there, thanks to one and all who chimed in with all the info it's greatly appreciated.

Attached is a short run video - I really should get the camera out before I start aye anyhoo I'm pretty sure you can pick who it is that's being engraved, all I need to do now is get the probe working i.e. retracting on touch not spinning the motor and twisting the probe cables in to a ball The finally motor tuning ended up at 400s 2500a 200v - my initial test of this setup resulted in a 100mm straight line on X and on the Y so with that, WOOHOO although I still need to sort the Z out, time to sit and mind melt over the mach manual

BTW the line art used for this came from my tattoo line art collection a job I did for a few decades before I got bored. . .

So if anyone is looking for anything in regards to line art feel free to let me know, odds are I've probably got something that can be worked on if not exactly what you want.

[Ricardoco]

Getting there, thanks to one and all who chimed in with all the info it's greatly appreciated.

Attached is a short run video - I really should get the camera out before I start aye anyhoo I'm pretty sure you can pick who it is that's being engraved, all I need to do now is get the probe working i.e. retracting on touch not spinning the motor and twisting the probe cables in to a ball The finally motor tuning ended up at 400s 2500a 200v - my initial test of this setup resulted in a 100mm straight line on X and on the Y so with that, WOOHOO although I still need to sort the Z out, time to sit and mind melt over the mach manual

BTW the line art used for this came from my tattoo line art collection a job I did for a few decades before I got bored. . .

So if anyone is looking for anything in regards to line art feel free to let me know, odds are I've probably got something that can be worked on if not exactly what you want.

Its always nice when you can actually make something, its like light at the end of the tunnel..Im glad you are now getting some good results.

Rick

[Carlb1058]

Its always nice when you can actually make something, its like light at the end of the tunnel..Im glad you are now getting some good results.

Rick

Cheers Rick, and thanks for the help - atleast now I can do some of the required math should I need it again