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Re PC104: A PC104 can be considered/configured as a motherboard.
Google: PC104 486 133 gives results.
Google: PC104 ISA returns adapters.
And of course, like life, it's an experiment. But it...

Here an AVR encoder, without filter. It will help you understand how to build it in hardware.

Episs, I think reading this, you still have to do some studying.
The power of an FPGA is that you can generate a multitude of global clocks. With these you can generate for each peripheral device...

You are right. The beer is stale, the coffee is cold and the tables are dirty. People have dreams and as soon their dreams need actual labour there is a problem. My opinion is if you are able to...

Geof: I understand your kind intentions. I don't pretend to be "eerily" in English. Having stopped posting, I stumbled via the email-notification on Greybeards post. The survivors of Market Garden do...

The film is Richard Attenborough's "A bridge too far" about operation "Market Garden", battle of Arnhem, september 1944. It was a disaster and 18000 allied soldiers died in combat. They are still...

Here you see my corcern on this forum, and probably the internet in general:
http://www.cnczone.com/forums/showthread.php?t=24669&page=3
If I help with a maybe sound design, it will be burned down,...

So this is all an a point of view difference. I see somebody who wants to create a spiral in his own way and gets into trouble. I don't have an opinion how the problem is generated. I could help with...

No, I have never heard of Occam's razor, and I am not in the least interested in it. Kiwi had a problem, I gave a solution and that seems to be your problem. And of course there is no magic, it only...

I think you are simplifying this issue.

You're reasonable up to speed. G41 or G42 are just "walked in".
X20
Y20
G42 5
Y10 ;computer knows the material is on the right hand, stop at Y15
X5 leftturn and first predictive move, goto X5...

Well I will give you some ideas. Think of the bearing system you have now. Increase the bearing size. Think metal as you now get a nut axle. Think round (lack of mill), because you need only a hole...

It is difficult. I wrote the program to design the algorithm. It is now correctly working in another computer. The basics are that it works in a normal coordinate system. 0 degrees is to the right,...

Well, welcome to the lunatic asylum. Be gentle to the nurses and psychiatrists, they are there to help you and don't forget the medication. Don't chew the chips.

Forgot rotating nutter. Excuse me.

First of all, I would propose to ban the Dutch from this forum, because their lack of ability to write proper English can always be interpreted as an insult. Other country's to follow. As...

Hi Handlewanker. First, I have'nt got a single stake in the rotating nut industry. If people want to make routers with CNC controlled jet propulsion, fine by me, but rather not in my street. So lets...

Angular contact bearings:
http://www.fag.com/content.fag.de/en/products/productinformation/rotativ_products/angular_contact_ball_bearings/single_row_angular/single_row_angular.jsp
Spindle...

These are angle contact bearings. There are also spindle bearings, look almost the same, lower loads, higher rev's. Be forewarned about questions about bearing fits and look what they will cost you....

I saw you generated your code with increments of 4 degree. If you integrate the compensation, you can create an error when the path moves forward, but the toolpath moves backward. This is what your...

The program does'nt test, it creates the toolpath. So if you are at point A, you look at the interconnect at point B, calculate the Comp_X and Comp_Y, add or subtract these from the point B...

But yours could as well end up as a CAD drawing. NC is right about the double bearing fixed at the front and sliding on the other end to avoid thermal difference problems. Personally I think the...

I think the Chinese are rare too. But it broadens your choice. Emco and the clones are interchangable. A friend of mine pulled the FB-2 column from his lathe and mounted it to a Chinese Emco milling...

It's stupid to throw a machine away, just because a gear is broken down. There are numerous ways to repair it. There are also Chinese FB-2 clones, see...

As pictures say more than words, here are two. One is the underlying fundamentals of the program, the other the expected reaction of X+Y+X+Y+ moves (90 degree sequence).

Pics and microcontrollers in general are in the 1-20 Mhz region. All your other applications are lower in frequency. So 100mhz will be more than good enough.

Kiwi, I have, just to keep the (old) mind sharp, recalculated your program and it never makes a negative move, it can compensate running the same direction as your program. However, I miss in your...

G01 X/Y moves generate 90 degree moves. The radius compensation program will solve for example, an Y+1 with an 90 degree circle, where the X+1 is solved with compensation of the half-angle. A steady...

At the moment I am programming this can of worms. The moves on the lowest resolution, as X+1, Y+1, X+1, Y+1, would generate 180+, 180-, 180+, 180-. The radius of millradius+1 when doing 180+, leads...

Yes, but they have the remote control AND the couch! Then the drill press is only a small price. And of course, being your family, you being world famous also affects them.