[Georgie]

Slaving or Syncing twin axis drives.
I am using twin screws to drive my main (X) axis gantry on my flatbed rouyer system (TRON). I'm a little confused and want to sync the (X) and (A) axis together but the manual (page 5-33) is a little unclear and does not make anty sense for me.

My M880 microstep drives have an ENA+(5v) and an ENA-(ENA) terminals. Do these need to be connected to my breakout board(C11) these can be set to 5,10,25,50,125,250 (Curently set to 10)

Does both the Dir(active low) and Step(active low) need to be ticked in the Motor outputs dialoogue box?

My x and y axis screws are 2.5mm per 1 rev. I make that 400 in the (steps per) dialogue box. and the Z Axis screw 2mm per 1 rev I make that 1000 in the (steps per) dialogue box. is this correct ?

I'd like to ask about the best setting for my steppers (Kelling 23H276-30-8B) running at 48v with current limit setting at 4.9A

I hope you dont mind all the questions but I think it's safer if I ask.

[Georgie]

I'm using MACH3 and managed to slave the X and A axis so now I can drive my gantry.

I just need confirmation on the setup for my steppers and screws.

My x and y axis screws are 2.5mm per 1 rev. I make that 400 in the (steps per) dialogue box. and the Z Axis screw 2mm per 1 rev I make that 1000 in the (steps per) dialogue box. is this correct ?

I'd like to ask about the best setting for my steppers (Kelling 23H276-30-8B) running at 48v with current limit setting at 4.9A

[ger21]

800for X and Y, 1000 for Z.

If wired bipolar parallel, then set to 4.2 amps. 2.1 amps for bipolar series.

[Georgie]

Thanks Gerry, I set them as you suggest. Now after all these months I finally can move my gantry.
Initial test are quite acurate but I will try some more acurate testing using DTI setup.

The gantry seems quite happy at 30inch/min. I dont realy know what speed to expect it to run at. Is there a general rule of thumb for gantry speed on flat bed router. x axis is approx 1.2mtrs long.

Thanks thus far, who knows, praps more questions later when it starts to get complicated.....

George

[ger21]

Is there a general rule of thumb for gantry speed on flat bed router.

Yes. Faster is Better. You may soon find that 30ipm is painfully slow.

[Georgie]

So, I should set the speed for the drives in Mach3 to maximum?
If 30IPM is painfully slow and the faster the better you say then I'm looking for an optimum speed trade of befor I start to loose steps. Can you indicate what sort of speed I should be aiming for. 100IPM? 200IPM?
Thanks
George