Help please. Dip switches and mach 3 settings

[cropwell]

I think it is about time we had a proper review of the situation.

When you have your PC up and running with Mach3 loaded and you can get each axis moving, then we should tackle problems one by one.

Starting from basics :-
Leadscrew pitch
Belt ratio if not direct coupling
Microstep settings
Steps per
Velocity
Acceleration
Driver current

If anyone thinks something else is needed please add to the list and I will revise this post.

BTW Andrei 5.7A is less than 2% above 5.6A and the stepper should handle this.

[Radu_Andrei]

Ok. I.ll get back when it.s ready for review.
Thank you.

[Clive S]

Ok. I.ll get back when it.s ready for review.
Thank you.

OK remember that nema 34 do not spin as fast a nema 23-24

Your win 7 pc should be fine (as long as it is 32 bit). Also If I remember keep the kernel in Mach3 to 25k/cs I have a feeling you tried it at 35k

I would not have any doubts about this problems you.ve menitioned if there would be a constant. Like, ok 60V is not enough. It should not work. But it varies. Sometimes works just fine.

This will work but not as fast. Ie the motor won't spin faster unless you up the volts to the drive

[dazp1976]

Got my £32 bargain Dell 780 the other day. Installed windows xp but weirdly it will connect via wlan to my other pc's but won't connect to internet? Probably a blessing in disguise tbf (no chance of viruses). Might try Windows7 at some point.

Looks like I'll be waiting until October for an AMAT25LV from Amadeal which is frustrating.
Gives me time to get Mach3 installed, the electronics box wired up & all tested before hand I guess.
In terms of steppers I might need something bigger than the Nema23 425oz/in I have for the x,y.
Using 5mm pitch ball screws I'm planning on setting it up with:
The drivers set at 1000 per revolution
The steps per unit set at 200
So If I'm right 5mm/1000 gives me 0.005mm resolution and 200 steps is 1mm (1 unit).
Should give me a reasonable rapid velocity.

I'm running my dying Sieg X2 on 2000/400 on 5mm pitch atm which Mach3 shows I could have a maximum velocity of around 2800mm/min ish.
I have to have the Gib so tight on that tiny table though, the motors start missing steps at 1400mm/min. Those settings give me 0.0025mm per step.

If I can get closer to 2000mm/min using the 1000/200 settings on the AMAT25 with a 0.005mm accuracy I'll be plenty happy enough :)

[Radu_Andrei]

Hi dazp1976,
If I got it right, you.re talking about milling steel and/or aluminium. I.ll use it mainly for wood, and sometimes for plastics. I guess each material and machine has it.s own limitations. I.ll keep in mind your specifications for when I get there. At the moment, I.m searching for a new motherboard or pc.
About the Old Gigabyte socket 775 Matx board you.re mentioned some time ago, I can get a separate motherboard and the add to it all else, or get a whole second hand pc. I.ve just found this one for 15 Euro,
https://www.olx.ro/oferta/desktop-pc...tml#e11bdcef1f.
Is this the kind you were talking about?

[dazp1976]

Hi dazp1976,
If I got it right, you.re talking about milling steel and/or aluminium. I.ll use it mainly for wood, and sometimes for plastics. I guess each material and machine has it.s own limitations. I.ll keep in mind your specifications for when I get there. At the moment, I.m searching for a new motherboard or pc.
About the Old Gigabyte socket 775 Matx board you.re mentioned some time ago, I can get a separate motherboard and the add to it all else, or get a whole second hand pc. I.ve just found this one for 15 Euro,
https://www.olx.ro/oferta/desktop-pc...tml#e11bdcef1f.
Is this the kind you were talking about?

Yes for milling aluminum.
The PC running my X2 conversion is similar. It was a custom build about 10 years ago that eventually sat in the loft for years. It has this board in with a Celeron 331 (2.66ghz)
https://www.gigabyte.com/Motherboard...M-S2-rev-10#ov
I put 2GB ram in as I'm using on-board video.
350w psu, dvd, floppy.
Has a faster SATA drive in there but I assume an IDE one will be just as good, just take slightly longer to start up.
Setup is flawless on the 3 axis X2 mill.

Only trouble with sata drive is xp needs an initial driver on a floppy for it when installing fresh. Some boards these days don't have a header.

Have 4GB ram in the new/old Dell and putting a video card in there in case I go 5 axis on the next machine. It's overkill but at least it shouldn't have any issues.

Also on another note. Because I neglected to use screened cables on the X2 I decided not to fit limit switches. Soft limits in Mach3 have worked perfect for it so far. As long as they're set up correctly in relation to the home position and remember to home at the end and beginning of the day it seems to work spot on.

[driftspin]

Only trouble with sata drive is xp needs an initial driver on a floppy for it when installing fresh. Some boards these days don't have a header.

If this really is problem you need to solve to get it to work, you can get a program called "nlite Os" to slipstream the driver into a xp install cd.

It is free and i have used it a lot to make bootable automated install cds for xp.
It also lets you slipstream all known patches and servicepacks and turn on or of unwanted features.


Grtz Bert.

Verstuurd vanaf mijn SM-A320FL met Tapatalk