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AMCjeepCJ: You misread the I am better than you attitude. I make parts according to the ISO system, which justs means that it is a rule for everyone. If my part is not according to this, it's scrap,...

One time I worked at a factory on a frame outsourced by ESTEC(tuesday = spaceday).This frame had to rotate 180 deg. I was halfway and saw it was'nt going to work the way they planned it. I called my...

You want beef, you'll get beef. I have discussions every now and then with selfcalled toolmakers, diemakers etc. They all are bragging about the difficulty of their jobs and how they have to find...

A lot of these owners are living in their own kingdom. At a certain moment they find paying their employees a nuisance, because they should be pleased to serve their king. Every now and then I have...

CNC is an expensive candy-shop. Some people have mega-buck machinery and produce lousy designed, low quality ehh... crap. Other people produce wonderfull things on next to nothing. Allow yourself to...

No, not on your motherboard. The PCI card has an address and is recognised by the Bios at startup. This address must be unique and be in this case 0x278. An LPT1 has the address of 0x378. So to make...

No, first you need to put it's adres at 0x278, to be recognised by the computer as LPT2. Otherwise you have 2 LPT1 ports. On your card there should be a jumper where you can choose between LPT1 and...

Well, as with every problem, slice it. You need a PC with software and the ability to generate programs for the machine to run. Without an actual machine you can run this and get experience. For a...

Aim conservative. Your motors should be, in contrary to modelplanes, be fit for 100% dutycycle. 100 Watt output as heat on the shield of the motor is not outputted on the shaft. Ceramic coated...

He's just very busy with alternative heating, the CNC is just an excuse, we all know how cold Scandinavian winters are ;).

Carel

Oh yes, now we're talking reasonable sizes. The next consideration will be: is it for main business, support of business or private project(s). And required quality and projected time of course. This...

Well for milling metal in the size you want (24*24), you need a lot of metal. Look at Stevie's Gantry Mill Project and that machine is smaller than what you want. So work on your "unforeseen" and see...

I settled at drilling at random, but as this discussion goes up again, I re-enter. If we assume a solid hub to be fixed on an axle and a force applied by the screws of each 1 in whatever measure...

When I see 19 as a metric value, I get an itchy feeling. 16 or 20 is more used. And yes (25.4 / 4) * 3 = 19.05. So it looks more logical that Konstantins pitch = 3/4 inch.

Carel

Is it really necessary to build your own router? I assume that by cutting sheets you want 2-dimensional shapes. Laser-cutting, thus make a drawing and let them make it, is in my experience dirt...

And then there were the 1967-1968 3 cylinder DOHC 12-valve Honda 50cc and Suzuki 50cc two-stroke 3-cilinder. The parts of these real racing engines would have to small for this model-project!

Carel

OK, it's history night. Here is a stepper motor with an encoder on it's back. The encoder signals are going into a specialised chip. Out of this chip come Phase signals and PWM. The nice thing is,...

WilliamD: Roughly looking at the replies the Americans wanted to buy the motors (at a low price), and the Europeans want to make their own. You're spoiling our potential market! Just throwing a...

I have here an alternative encoder. It's a Sony magnetic encoder. This one sends out A-B signals, and because all the Sony measuring devices are sinoid, and need thus the Sony-interface to read them....

You can post the question to one of the FPGA newsgroups. Nobody will be very helpfull to someone who wants to jump quickly over the problems. This is homework?

Carel

Try this: http://www.item-systems.nl/ .It will bring you to the German site. Choose English and online catalogue. Choose MB, Dynamic Elements, Linear Slides, Linear Guide Systems. Here is the THK...

With an FPGA you are on your own. You have to assign pins, declare which variables are registered and which not and define the logic. I can even throw some code in, which is Lattice-Chinese and it...

Fabrication process of timing belts:

1) Put textile nylon on the mould, for optimal running of tooth on pulley

2) Rubberize to neutral line, or rubberize above neutral line and grind.

3)...

I don't see the building of an outrunner as a big project. When I saw that site, with the overwhelming data on it, I wondered if this low volume/torque ratio, low weigth and designed for torque motor...

JerryFlyGuy: Skills you develop separately from your work at home (like inventing winecorkscrew #65892 as a bookkeeper) are your own Intellectual Property. If your boss wants to use incidentaly these...

Legally it is quite simply. The Intellectual Property is owned by the business. If you are self-employed the IP belongs to you. If you are employed the IP belongs to the boss. They created the...

http://catalog.item-international.com/Onlinekatalog/navigator.jsp;jsessionid=FB888D0EC603A50F2E03511B2F5C6955#

Carel

It's the journey, not the destination, which can satisfy people.

Carel

White Tiger: I think we must compromise at screws drilled at random, because 0-90 is meaningless theoretical. I take the stand that 0-120 is way to difficult for the man who must drill the holes....

I tried to find the link for some very enthousiastic German DIY servo builders. I could'nt find it. They build their own lets call it inverted design brushless DC servo. It is very common in model...