Search:

I bought 3 - Nema23 steppers, 425oz-in, and run them from a Gecko G540 board connected via USBCNC to a laptop.

This is my order for 2 of the ball screws, and bearing blocks:
SFU1605-C7-975 975mm...

Awesome. I can share any drawings w you if you need a starting point.

Sent from my SM-N920W8 using Tapatalk

Awesome, keep up posted.

Thanks gents, about what I expected. Might look at getting a better motor and VFD and running a 2 speed belt drive instead. Something that can get up to 9k rpm possible. I saw someone on YouTubs...

Wondering if 99% of the machining I will be doing will be aluminum, could I use a 4kw 20,000 rpm spindle motor? I would hope to be able to utilize the extra speed when milling parts from 6061 or...

Never did, I bought a new pulley, wasn't it, machined the old pulley on the lathe, trying to make it perfectly round, not it. I think its just the tolerance of the bearings and trying to whack...

Hey lcvette. Mine is still running pretty well. Got the mill portion working decently, still noisy though. I am building a stand with heavy duty castors and a tool box under it now as I'm re-doing my...

I want to buy a probe for my CNC mill that I run Mach3 on. Are there macros where I can probe for the center of an object? Any recommendations on a decent probe to get that would be compatible with...

It sold for $3600.

288930

Thanks for the update metalworkz

Sent from my SAMSUNG-SM-G900A using Tapatalk

@KevMoto, hope the move goes swiftly and smoothly and you can start playing around with the machine again.

I finally bought a proper endmill, a Moritool roughing EM for aluminum specifically....

Coils, that's good news, I think the rest of your setup is software now. I just ordered a handheld tachometer from eBay to calibrate my spindle speeds, hopefully that is a fruitful endeavor.

Sent...

Thanks for that. I feel like $6800 is a lot for a CNC Conversion of the charter oak machine. I know its servo based, but how much could I do a smooth stepper setup on my own? I have a CNC machine...

Thanks for the feedback guys. I think part of my problem is, I quite enjoyed converting my current machine, and would enjoy converting a new one as well, but like you said, its time spent not towards...

Preface, I converted a Grizzly Lathe/Mill combo to CNC and really enjoy using it, though the mill portion really leaves me wanting.

I want a proper mill to do prototype and small production runs...

coils, sounds like you got the answer you need.

Have you been able to get the VFD to run the motor without the G540 connected? For me that was tougher, the Hitachi manual is pretty complicated...

I am running a G540 to a Hitachi VFD. There are 3 wires from the G540 that you need. The VFD 10V DC +, the Ground, and the VFD V+ Output signal. This part is relatively straight forward, the tricky...

Cool, thanks Al.

Handheld Digital Photo Laser Tachometer Non Contact Tach Tool RPM Tester | eBay

Wondering if its even worth that price. Need to calibrate my lathe index sensor and trying not to spend $200+.
...

Finally got my magnetic pulse sensor working and getting reliable readings within Mach3. Now I am trying to calibrate the spindle so I can do some threading on the lathe.

I have a Grizzly...

Hi guys,
Wanted to thank everyone for their help. Managed to get the sensor working today. Well, a new sensor. Bought the same sensor as I originally did, wired this one up with the 1k resistor...

Is my sensor dead?

Reviving this dead thread. AL, I'm trying what you suggested. I've got a resistor between the V+ and Ve+. IE attached the photo of the resistors I bought.

On my meter I get 12v between V+ and the...

Bummer about the injury. Measly 315, that's all I can do on a good day, ha!

Too bad about the table too, although a table on wheels soundy awfully tempting to me. Then I could do a proper...

So I've started to re-do the Z axis on the mill. Tired of it flexing and lack of Z accuracy. This will be the stepper to spindle mount:
241524

It's 3/4" 6061, and yeah I messed up the bore, but I...

If they make a USB G540 now thats great. I had to get the USB converter, my original laptop was a piece of crap and ran out of memory a lot. Got a better one for $150 but no parallel ports. Very rare...

These are the 2 ballscrews I bought for the machine X/Z lathe axis:

SFU1605-C7-975 975mm Ballscrew & Flanged Nut w/ Machined Ends
Item# 407 $100.06 USD 1 $100.06 USD
SFU1605-C7-365 365mm...

"In your picture of that mount (with the Y flipped upside down) is that 4 tiny screws holding the plate?
And, how long of a ball screw is the one for your Y ?"

Yeah, 4 tiny screws, this is the...

"For Zer0fighter... I noticed your ball screw only was about half the length of the cross slide table while FannBlade's looked to go all the way across and insert where the old screw did. So I was...

Thats my plan too, an index pulse for accurate lathe RPM, and do the threading that way.