Okay, you convinced me. Just thought I'd check!

I am using a smoothieboard. My parts are on order. I plan on setting the max output to 2 amps with the option to add drivers later if needed.

That's the one I was talking about but mine is only 10x10. It's tight but it works. Maybe 10x15 would have been a bit better. I'm sure that for most applications 10x25 will be plenty. The signal wires for all the end switches and so on can be very thin.

@TohoeTim - I also have a smoothieboard that I've been considering its use on my OX. However, I'm shying away from using it mainly because it uses the A4892 stepper drivers which only support 2A per winding. It seems counter intuitive but in some ways the gShield might actually be a better choice for the OX since it uses the TI DRV8818 Stepper Drivers which are good from 2.5A per winding. However, it's big problem is that it only has 3x drivers.

The TinyG has 4x drivers but is WAY more expensive!

Short of running external stepper drivers from the smoothieboard the Azteeg X5 is probably a pretty good choice since it uses 4x of the DRV8825 stepper drivers which also support 2.5A per winding. For those who don't know the X5 runs the smoothie firmware.

It's also worth noting that Panucatt--the company that makes the Azteeg X5 controller--is coming out with a CNC specific version of the X5 soon. It will support replaceable drivers (ala Ramps), as well as, the ability to plug in external drivers in the 3.5A per winding range.

Regards,
Brian

p.s. Tim do you live in Tahoe? I'm down the road from South Lake Tahoe on 50.

I hear you...but there should also be plenty of space for the bigger carrier.

Yep, I live in South Lake Tahoe. I'm gonna try it with the board limited to 2 amps. I am a rookie so I haven't a clue if it will work. They referred me to an $18 driver per motor part that I can add later.

I am also wondering if a 24 volt power supply will compensate?​

I'm far from the expert regarding electronics (or most anything for that matter) but it's my understanding that using higher voltage (e.g. 24 versus 12 Volts) will allow the windings to come up to peak voltage quicker. In general move voltage the better. I don't know about the $18 drivers but there is definitely a limit to both the amps and volts that you can run through the smoothie. Got a link for the $18 drivers?

Just a thought...I guess I could hook my smoothie to my current cnc router and see how it works. Right now I'm using LinuxCNC with an older Xylotex driver board so I would have to do some rewiring.

Cheers,
Brian

From Arthur: THB 7128

If you slow down the feed, will it reduce the amp draw? My comment about the voltage was based on my thought that doubling the voltage results in half the amps? I am an electrician but this is my first try at a router.

looking for enlightenment...

Hi Guys,

Just about to start putting togehter my first OX and wondering if I could get a recomendation as to the weight I can mount on the Z axis. I plan to use the standard 8mm screw and nut from the parts store.

I have a 2.2kw chinesse spindle and mount that I would like to use but its not light..... Do I need to think about something smaller?

ya i am looking for a smaller one as they are about half the weight but even then the RCmotor spindle with an ER11 collet chuck seems like a really nice balance between power and overall weight. This looks like it would beat the pants out of a dermal but how is it up against a wood router?

Ok sign me up for a set as soon as you can just hurry up and take my money already as your parts all look amazing!

+1 - I'm also interested and have sent you a PM.

Brian

So here I am giggling like a school girl insisting that my girlfriend comes and checks out my new parts....

She ask why on earth she is being forced to look at more cnc parts this early in the morning ....

Same reason I have to watch you look at pages and pages of shoes .... Cause they are purrry and spakle and will look really nice with that little black OX number I have sitting in my workshop....

Vengeance is mine!

Huge thanks to Robert for getting this custom order done in lest time than most shops take to quote a job in! Stellar services and highly recommended to all!

Hey Robert,

I've ordered the motor, ESC and the collet...No pressure!

Question...is the a place where I can download current drawings of the machined parts?

Regards,
Brian

Would ferrite cores reduce signal noise?

Cheers
Stew

Robert, i've a couple of questions:
Do you use a Battery or a Power Supply?
How much current does it draw?
Supply voltage?
Total Power?

@Robert Hummel, are you cutting all these parts with a outrunner as a spindle?

What would you say is the total weight for this machine?

Hey Robert,

They look great! Sending you a PM now.

Brian

Do you mill all these aluminum parts with the rc spindle? I've had my eye on your design for awhile