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Gerry - I know what you are saying about the 40% more holding torque, but if you look at the torque curve of most any motor you'll see that the available torque when wired uni-polar holds out to...

Yeah - the big limiting factor of the 3977 is that it is 2.5amps bi-polar and limited to 32V, although most people only run them from 24V. However the Probostep uses a different driver that is quite...

Gerry,

The Gecko drivers are nice, but for an extra $200 they will NOT double the performance of the PROBOTIX drivers. Maybe 10-20% increase in top speed, but no more. You are right that the green...

Punkidd,

Come and speak to the thousands of satisified customers we have. Rod, er - cnctester is the only customer I have ever had to refuse a sale to. He created a big disturbance in our mailing...

If you want your crevice reamed, follow crevice reamers advise. Otherwise, we have had many Joe's builders have good luck with any of our kits.

I personally prefer the ProboStep kits because they...

Customer service is second to none. ;)

Often times it is challenging for the new guys to grasp the concepts and to get up and running, but we guarantee you success and are available to answer your...

You have to set the enable lines. Also, the enable lines and step lines need to have the invert checkbox checked.

>Len

It is VERY good ;)

And we WILL ship to the UK. We ship these all over the world.

Trust me, you will spend more money trying to make a home-built machine work, even if you build one from plans,...

That's Awesome! I never realized how tiny those little machines were.

>Len

Moshe,

Make no mistake, the FireBall V90 is no TOY! Don't be discouraged by all the old farts who hand around here and try to talk you out of taking the CNC plunge. :nono: There is no such thing...

Man - that is going to be really nice. Those motors are MORE than enough to drive a machine that size.

>Len

Nice! Where'd you get that rack mount case?

>Len

Haro,

The ProboStep documentation is currently being updated. Here are a few documentation items we are working on...

http://www.probotix.com/manuals/ProboStepVX.pdf
...

Keling,

This thread is about hardware, not electronics and motors. Perhaps you linked to the wrong page. All I saw there were motor/driver kits.

>Len

If you are comparing the V90 to the ZenBot, then you will have similar results with milling PCBs because they are both flying gantry machines. True, that the F90 may have been more suitable for PCB...

Jeff,

The "Steps per" metric in Mach3 is the number of steps it takes to move the machine one "unit." The unit can be either inch or centimeter. With all due respect, I think you may be missing...

Jeff,

I am not sure what you mean by "can't run faster than 450 steps per revolution". Those stepper motors are 200 steps per revolution. They can be electrically divided through microstepping to...

Thank you Chris for contacting me about this thread.

Lucian, I will gladly warranty this board for you. Please contact me again. My telephone is listed on the contact page, as well.

>Len

Contact me offlist @ [email protected]. I will accept reparable Xylotex and HobbyCNC boards as partial credit for one of my systems. www.probotix.com

>Len

What is the problem you are having with the HobbyCNC board? How many wires do your motors have and how many amps are they rated for?

Well, there is a way to do it without soldering. You could grab the ground and 5V by hacking apart a USB cable. You could do this by splitting apart the cable that supplies the breakout board, or you...

Here is the way I would wire an e-stop to the PBX-RF. Many people will tell you that you also need a circuit to lockout the motor & spindle power while in e-stop.

Legally I can only say be sure...

The PBX-RF is functionally identical to the PBX-2, except that it is isolated from the PC through radio frequency. It is easiest to power the PC side of the board with the USB port, however a powered...

To connect the power supply:
* Whack the female end off of the power cable.
* Strip back 2" of the outer jacket. Separate the 3 wires. You should have a Black (L-AC) and a White (N-AC) and...

Nope - they are already connected. When you get your boards, you'll see this by looking at the bottom.

5-wire motors are basically the same in that they connect the center taps inside of the...

Jeff, sorry about that. I found your messages in my spam folder. I admit I haven't checked it in a few days.

To answer your question: The motors have leads that are maybe 10 inches long. You...

The cheaper version is not-isolated, therefore it is more of a risk since you will be connecting motor drivers directly to your parallel port. I always recommend using an add-on parallel port card as...

The LM317 is a great chip and can handle the higher voltages while still delivering 1.5amps. Granted, I do not need that much on the PC side of the board, but it's an economical benefit for me to...

I thought the "biased opinion" would indicate that I am PROBOTIX. Sorry.

I always recommend an add-on parallel port card, as you can never be too careful. Having said that, I have run many...

I'll comment because I know you will likely not get much response, as this is a brand new product.

This basically accomplishes the same thing as an opto-isolator, except the isolation chips use...