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This is a good point and I thought I recalled doing something to that effect when I roped it up. Sure doesn't look like it in the picture though.

Perhaps I should remove the pic?


ciao

lino

Here's one way I did it:

http://www.vernadesign.com/millpics/DSC_0030.jpg


Later I just took a short cut and put a loop of rope around it's "neck". Locked the Z gibs just in case, and...

I don't think your post was pulled. The original post was posted in two places. You responded (as did I) in the other spot:
CNC Zone clubhouse

The First Law of Thermodynamics says (basically), "The best you can do is break even."

The Second Law of Thermodynamics says (again, basically), "You can't even do that."

Both laws always...

Maybe I'm misunderstanding, but wouldn't a larger idler decrease the "idler rotation speed" for a given belt speed.

Actually, the best way would be to have a large bearing OD, with the races at a...

Hey Y'all,

I've been doing some digging around for devices that can get the count rate up higher than Mach's 40kHz-ish output.

So far, I've found Grex and NCpod. Are their any others?
I've...

Hello All,

I'm happy to announce that I've gotten my Fluxeon drive connected and working now also. I had a little problem because it turned out my encoder didn't have differential outputs, but...

Hello Xerxes,

Thanks for the response. I'm running at 20V now.
Motor seems to be responding to the step response fine.

I have another question, perhaps a little off topic?

Is there a way...

Hello,

I got my drives last week and I'm in the process of hooking them up...

I think I found a typo in the documentation.

On the electrical specs page, the logic supply voltage is listed as...

Hey Dave, You might try something like this model. It's a quick and dirty, semi-scale from memory and a couple pictures, but should convey the point.

The red fin is an appropriate shape if you...

coming off at 45 degrees (or 135 , if you prefer) from each of the rear corners would be good, coming off each of the 4 would be better (but tricky).

Also, since we have effectively banned...

Hi Phil, yes you're right again, I miss spoke (wrote?)...
Stiffness will increase.. (that's my story and I'm sticking to it <grin>)


But you're right, preload has nothing to do with it...
...

I'll second this, welding or heating is gonna make stuff move. Additionally, using the tensioned guy-wire setup I mentioned earlier might also introduce a bow into the column.

That said however,...

Hi Dave,

This isn't a bad way to go, but I'd make a couple changes...

First, the loads in a square column are concentrated in the corners, so that's the best place to make it stronger. Instead...

Hi Phil
It's a santec bedmill, more in this thread: Interesting Big Square Column Mill
Hopefully in the next several days, I'll be starting a build thread with lotsa pics...



I know that...

Interesting Thread.

Here's what I was considering doing to my IH for a while (before I solved the problem another way: sold it and bought a bed mill with the same travel, but 4 times heavier,...

Are you talking about a cone stack pulley arrangement?
Like you see on the J head Bridgeports (among others)?

If so, 14 speeds means you'll need a stack of pulleys 14 tall...
Another option is...

Up six posts, the line right above the shipping price list:
-Fluxeon VSD-A, €150 VAT 0%



ciao

lino

Not to keep playing devils advocate here, but before we hang Tormach in effigy...

I haven't heard any of the IH spec gurus speak up here, doesn't the IH cnc conversion have floating ballscrews...

Hello Ken,

I didn't ignore that point I don't believe. Every application of turcite that I've seen (which I'll admit is enough to count on my hands) also had direct lubrication.

Perhaps the...

Actually, I believe that the Tormach uses a PTFE and delrin blend, that is similar to Turcite. I think (that is, as I understand) the difference between the plastic used on the Tormach and Turcite...

Here's another CNC ready example of a Santec/Sharp on the 'Bay
Santec BedMill

It's the "Big Boy" model.

Of the Santec/Sharp type, there appears to be a RB-10 model, like mine (shown in the...

I think there are roughly two sizes of this machine, one that is comparable to a Series 1 Bridgeport such as the white one above also for sale here:BedMill
It weighs about 2270 lbs in non CNC form. ...

I just bought one of those just like the white one with a 3 axis CNC conversion (inop centroid from 1992) 2 days after I sold my IH mill.

For $100 more than I got for my IH...

The IH was...

Hmm, so maybe I'm beginning to catch on here...

So most AC servos (therefore most drives) use 3 hall effect sensors (or some equivalent) with 120 deg sep. for commutating. Fanuc does it *their*...

Hello, please forgive me if I'm asking the obvious, trying to get up to speed on AC servos and drives, but the learning curve is near vertical right now...

I know that newer Fanuc motors (still...

Hello,
I'm also very interested in these drives. Is there a website with a summary of specs etc available, or is it too early? I admit I've only read about 5 of the 9 pages of this thread so...

Tito,

On my IH mill, I measure 86.5" from tip of hand wheel to tip of hand wheel including full table travel.


ciao

lino

Ciao Tito,

Devi scusare il mi italiano...

Quale distanza vuoi?
Dal base tra il tavolo, o
la distanza da la sinistra parte dal tavolo quando il tavolo e' al sinistra tra la destra parte dal...