https://www.cnczone.com/forums/syil-products/59118-sx3-circuits-versions-post-post2308310.html#post2308310
Type: Posts; User: neilw20
https://www.cnczone.com/forums/syil-products/59118-sx3-circuits-versions-post-post2308310.html#post2308310
Run each pair of limit switch wires back to controller and don't save wires by connecting common grounds at switches. Any common ground points should be right near/at the controller. If the wires are...
Yes. All shields terminated at one end only, your star point. If second end not connected no current can flow in the shield and induce currents in enclosed wires.
Ok. I watch this space.
Might be dried lubricant in sealed bearings.
Get a piece of tube to use as a stethoscope and you will then be able to locate the problem. Might be the belt stiffening with age (most likely) and it looses flexibility.
3 years waranty on most...
It depends on whether the hard limit is electrically wired to trip e-Stop. Otherwise it is just a switch as a reference point for homing, you can configure in settings, and you can set soft limits...
Soft limits take priority, if they are WITHIN the hard limits.
Hard limits still work, and probably, if you are lucky, and have it all good. HARD limit is a mechanical crash, then you have hard...
Travel restricted due to short gas strut, I think.
In the files I sent, buried in there, are the procedures for setting soft/hard limits.
When it is all setup correctly, Referencing should work and...
Here are some useful (IMHO) Mach3 files.
Black box is a useful PDF. Just click it. Weird web site feature??
Your soft limits are probably not correct.
Home the Z axis.
Zero the z readout.
Turn off the soft limits (screen 1). Might already be off.
Move down until you hit the bottom hard limit. Write...
Hi mlchman,
I have all manner of circuits, information, settings for Mach3 (still recommended interface) ... USE old XP PC for most reliable operation. Win 7 with LOTS of changes to scheduler. Win...
From my collection, up to 12 years ago.
Still using my SX3. 2000 hours approx. now. Every 200 hours, redo the X slide gibs. Needs teflon ones, one day( or year)
Minimum andaximum timings? On a squarewave? I bet the steepper motor misses steps before you hit that limit.
If you don't backup for a year, you are prepared to lose a years work.
Mach3 manual...
If you use an AC motor you will lose a lot of low speed torque. When jumper is in for for 110vac it works as a voltage doubler, so you still get 300vDC rail, so max speed is controlled by maximum...
The ST micro is a customized micro, and you will get little or no product support or useful data, I suspect.
With/without hall sensor might be ok. Consider if your mains voltage is not above ac...
I have seen and fiddled with quite a few models, like this one, but this is yet another I don't have a schematic for.
A clear closeup of the square motor drive chip woul be helpful.
Look here... ;)
https://www.cnczone.com/forums/syil-products/409310-cnc-post2399092.html#post2399092
Probably something wrong in Emergency Stop wiring. The silly spindle cover switch is the first...
Try these files for driver and rest of machine.
Might be rubbish on spindle sensor magnet ring.
Use adhesive tape to clear whiskers.
Try not to remove sensors, else phasing might be screwed up....
Your pm box must be full. It blocked my send.
neilw21 at y7mail • com
Sorry. Don't recognize any of those numbers.:mad:
Try this: Closest I could find. Look at page 41. Get the Estop wiring correct.
Ref:
...
I believe your safety relay on main board won't be closing.
If that is the case you won't have any voltage on the big electrolytics. Be careful. All this stuff is at mains potential.
I don't have...
Pictures of PCBs so I know which of the many versions you have. I hAve most if the schematics.
Your problem is in the big motor controller PCB.
Can be a simple as e-stop lockout. Most wiring is...
I believe you are getting a spurious spike on z axis making mach3 say it is homed.
Symptom is that z axis ends up green.
My SX3 gets spikes on z sometimes due to dust on z slide causing exactly the...
Hi Mike.
I have emailed PDF. Too large to attache! Grrr.
just updated known errors. Navigate with bookmarks is best. All the information I have, in one place. Enjoy
Neil
Hi Mike.
Can you take some photos of the main board so I know which version you have. Do you gave schematics?
Do not remove front panel with power on. The magic smoke will escape, then make sure...
Still here. You have s problem?
The long ic on bottom center of piggy back board will almost certainly be MC33035 or MC33033, depending on pin count.
They scratch off numbers, but I have been around longer than them.
Searching...
I got my first CNC when I was 58, and second when 64.
There is hope for you yet? or buy some ballscrews and retrofit your Bridgeport. Nothing a scrape of the ways and gibs won't fix.
Stepper motors...
And that was almost 8 years ago. Did they figure it out, or die after retirement?
Note my signature!