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Thanks for replies guys, I've got a lot on at the moment so will have a good look when I sort out other issues I have.

Hi Guys, just thought Id post an update. I have a workaround for the toolchange at the moment. As long as I manually position the spindle in its home position before aligning machine it seems that...

Can you please elaborate a little on the spindle orientation procedure? Mine is same control as yours. I thought all one needed to do to orient the spindle was hold the align button down? If...

Hi Guys, If any of you have read previous posts you'll know I have no end of trouble with spindle drive issues, and really am regretting purchasing this machine.

I'm currently on my third spindle...

Well after my long ordeal - I've reached a milestone. I received a replacement drive from Robert at ARPI machine sales - great guy to deal with. Hooked it up and managed to get the spindle running...

It would be possible to change the bearings without messing up the timing, but I dont think it's a big deal to reset the timing. We get ripped off in NZ for everything s o likely you will be able to...

Hi Mallard,

Steve from SEC services sold me the resolver, It was cheap enough at 100 pound but I wasnt aware the rotor had been given some abuse. Unfortunately I spoke too soon about fixing the...

Hi Pete, It was an easy job to do, just a few things you have to watch out for.
Basically to ensure it is the spindle being making that racket I pulled the belt off (take top cover off, loosen motor...

I didnt overgrease the motor bearings, just the spindle, I dont want to pull the spindle apart incase I damage bearings doing it. Will the grease get pushed out of the way with a bit of a run in?

I recently replaced my spindle bearings on my Arrow 500 and as any woodbe jack of all trades, master of none would do, I gave the bearings a good caking of NBU15 isoflex grease, I just rubbed it in...

Well I was wrong, it wasnt the resolver. I bought one from a guy in the UK, put it on and it seemed to behave worse. Was a little annoyed - I was sold the resolver as "good" however it looks like...

I think we've narrowed it down to the resolver. I put a clock on output of back of motor, it ran near perfect, tho a little louder than I think it should when spun by hand.

The moment when I...

Just wondering, does the drive use the resolver for commutation or is it just used for feedback? The rotor of the resolver is not keyed so can slip - because it has hit the outer of the resolver, I...

Forgot to mention, rotor withing resolver is running slightly eccentrically - are they tolerant to this?

I need help - desperately! I've replaced spindle bearings, the problem is still there - maybe not as bad as before, but maybe I'm getting use to it, so just doesnt seem as bad.

I'm going to get...

I had no idea it could be a mechanical issue - so I didnt bother to mention the current mechanical status of the machine. I'm sure the spindle bearings need replacing. Although parts machine to size...

This arrow 500 I have is going to be the death of me, if it's not one problem its another.

I've just got a good handle on operating it, managed to machine up a good few parts. However now the...

Problem solved! - sorta! Thanks for everyones input, turns out the values it needs are from the center of radius to start of arc, not from start of arc to center of radius.

However... It seems...

I thort I had drawn my I and J as incremental? My manual calculation was definitely out - but thort I had the drawing down pat?

I guess first I have to figure out where the error is, my drawing...

thx for that TXcnc, maybe my maths was wrong?
i did a similar plot and it worked out??? where do I need to look to resolve this? VM or my machine? Perhaps its how the data is laid out?

thx for that TXcnc, saved the graph paper, so how come visual mill cant see that? How come its giving impossible coordinates? Any good suggestions on good value cam software that can do circular...

I have an Arrow 500 with CT controller. I have no training in CNC - jst thought I'd buy one and have a play for kicks. I'm using an old version of visual mill to process my files. Many of my...

Thanks, I think it happens at any table position, there is no swarf on the machine - it's hardly cut anything yet. The weird thing is you see the encoder jump around all over the place sometimes...

I have recently purchased a '95 Arrow 500 with a CT FNC controller. Have had a few teething problems. Getting most of them sorted now.

There is this one thing the machine does that freaks me out...

Problem solved - thanks guys.

I made up new connectors to get rid of the old cable etc, tried different settings, but the thing that seemed to fix it is getting rid of hyperterminal as suggested. ...

Is 15 seconds per kB too slow or am I just impatient? Is that typically the speed 9600bps runs at?? I would have thought it would be closer to 1kB per second?? I'm going to want to dump programs of...

Well I've finally got my new (old) machine running. I've just managed to get it plugged in, hooked up and running - tho I suspect my file transfer speed is many times slower than it should be - just...

I've posted this in the Cincinnati forum so apologies for double posting, I had no luck there so thought id ask here.

I bought my first CNC machine, was very excited, got it delivered and wired...

Anyone familiar with the spindax SA1100 spindle drive? Now that I've smoked mine, I need to find a component on it. It appears a small SOT23 component has blown on the board. I'm assuming its a...

I've just bought my very first CNC machine with all my hard saved coin. Its an ARROW 500 with CT control. I've been very excited over the past couple of weeks awaiting its arrival. It finally...