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We had early generation NC machines the used servo valves and rotary hydraulic actuators ( motors) for positioning. They still had to have ballscrews to move the axis. The machines were made by...

Looks like it has plain sleeve type spindle bearings. If that's the case, they may be worn. My old clunker lathe has plain spindle bearings, and believe me it's impossible to adjust it so that the...

Unreal !!
I thought our shop was the last place on Earth that had one of those dinosaurs. Good iron and good electronics, lasts a long time. Anyway as far as connecting to a PC over the serial port,...

A few things that you need to find out. What is the scale output ? TTL 5 volt, or 1VPP sinewave, or what? When you find out that will tell you if an interface of some type is needed. Also what DRO...

From what little I know about Mach3, you can't "close the loop" with direct feedback. With EMC2 and a PICO or MESA card it is possible. EMC2 runs under Linux OS, not Windows, but it's free download....

trevj:
I used to work for the dealer that first imported these mills to Canada, back in the early 90's. I installed and seviced a bunch of partner mills across southern Ontario for about 5 years. I...

Try this website US Digital | Products » LIN Transmissive Linear Strip

Breathe:
The "star" rails are superior to THK. If they are the ones, that I think they are, they use roller bearings. Much more robust, larger load capacity, ect.
THK use ball bearings. I have a...

You are welcome. Good luck!

Don't open the file with DNC program. Open it with Windows Notepad, you will see it

You must place a "Control D" character at the end of the file. In Window XP there is no way that I know to make a control D character. So what you can do is save a file from the machine, then "cut...

Al:
Agreed what you say, But somewhere in ther it says servo, anyway I concur, I think it needs the encoder

That link states that you have servo , not stepper

If the basic structure of the frame of the machine is sound, then linear rails will work fine. Many modern machine tool builders use this system

Looking at the MAX website, I think you have the closed loop servo. I can't imagine encoders on a stepper. Anyway, if it is a closed loop servo, then the short answer is NO, you need the encoder.

I would like to give you some info on this. Yes it is possible. We have 10 CNC finishing mills doing hard milling with magnetic tables. They are made by "SCHUNK". Their web site will have info on...

Can you pry it up, off the floor a small amount ? Then slip some gas pipe or round bar under it, and roll it away from the wall. Kinda like the Egyptian methode of building pryamids.

Ihavenofish:
ACE Distribution, in Brampton, claim to be the Canadian supplier of Turcite. Telephone No. 905-487-0669. They sometimes have off-cuts, and smaller strips and pieces that can be had for...

Thanks for the link Jay, that will come in handy at times. Fretsman, you can use resistor arrays that come in 16 or 18 pin DIP packages ( I.C. style ), that way your setup can be more compact. Just...

I don't know about open source brushless drives, but you might want to check this out.http://www.granitedevices.fi/index.php?q=home. He seems to have a nice product.

Hello Carveone;

Glad to see some head way as far as solving the step-over issue. I'm an EMC2 hobby user, never even considered MACH 3 because of short comings I couldn't live with. I run a closed...

No industrial CNC mill that I have seen in 35 years has ever used pneumatics for counter balancing. Why? Because air is very compressable. With temprature changes so does the pressure. Also the...

We have a smallish desktop mill here. The head is not heavy at all, but as we started to add items to the head, the weight started to add up. My partner, who was a bit concerned about equal load on...

Ordered mine on Wednesday the 17th. I was told it was back ordered. Bought it anyway. Got a call from HF at 2:00 PM today, saying the back order is in, and it will ship Monday the 22nd.

I talked to head office in California. They told me 20 days or less. They were still taking orders, and it was not discontinued. Same price or less if it should go on sale when they get the new...

Your English is better than many people in Canada.

I am familiar with Kessler (used in our DMG macines). I also find that their prices are extremely high. I have disassembled one spindle for...

Yup,
Keep that lock in a baggie. Let the servos or stepper do the locking. I know the mechanical locks can improve stiffness, but they can also seize the gib, if the circumstance is provided.

We still have some older controls that booted the whole OS off of a few hundred kilobytes of EPROM memory. Allthough not many bells and whistles, but it got the job done. And on that thought , how...

Those washers are called (oddly enough) Tab Washers. Although the FAG bearing book I have refers to them as Locking rings, or something like that. I get them from my supplier, Motion Industries....

Have a look here> http://www.divelbiss.com/
I have bought a bunch of these for the plant I work at.
They are fairly inexpensive, easy to program, and they have pretty good software for creating...