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I have no longer contributed to this site, due to lack of readers.

For anyone, who wants to pick up from here, I have at least two more ideas on how to improve on current feeder designs.

1. I...

Well, I know about the sun. Used to live in Mallorca for some time.
The best contact I have is Adopt in Austria AdoptSMT GmbH - Used Machines and Spare Parts for the Automatic PCB Assembly Process -...

Ola Fernando,

good to hear you want to get into P&P machines. I'll send the files in ACAD/MDT 2004 format to your PM. Let me know if this works.
However, you may want to check out used feeder...

Thanks, this is very helpful.
Last question: Is the extruder value the string which comes out of the nozzle or the advancement of the 3 mm filament?

; generated by Slic3r 0.8.4 on 2012-07-12 at...

Thanks, slic3r looks pretty good, but is the output metric only? In this case I would need to change the settings in Mach3 to metric.

What is your point mojalovaa?
Some of the basic rules of this forum is to read other threads about motor basics first and then if you don't find the answer open a new thread on this subject. This...

I'm using CamBam pro which is free up to 40 uses. I've not used up all 40 trials yet. So far, I've only processed 2.5 D and not 3D.
I'm using FreeMill, if I cut a model in a single path (wax or...

I'm working on an extruder for my CNC machine, using the fourth axis to operate the extruder stepper.
All free software I find to convert STL file to G-code create E-axis numbers instead of A. I...

The schematics show a 0.33 Ohm resistor for 3.5 Amp.
Else, I have no experience with this driver board.
You can use only one power supply.

KH39GM2-801 pdf, KH39GM2-801 description, KH39GM2-801 datasheets, KH39GM2-801 view ::: ALLDATASHEET :::

The current limiting resistors are already on the driver board.
The circuit measures the voltage drop over this resistor and limits the current.

In principle unipolar setup is less expensive than bi-polar. In practice, only printers and scanners use the cost advantage of a lower cost driver IC.
With Mach3 you are restricted to the use of the...

As my German Bavarian colleague already mentioned the program pattern should be copied and pasted 5 times using an offset code G55, 56 and the pattern will repeat in the new offset location. See CNC...

It depends on your knowledge and experience.
I would rather buy a kit, motors driver boards and power supply from a vendor which will help you with the set up.

The motor number typed in google...

There is a long way to go from three motors and a power supply to a CNC router.

-The 3V are not rated voltage but used for reference to calculate the resistor.
-Typical voltage is 24 Volts, but...

Pick and place smt?
http://www.wimp.com/robotsfly/

The main difference between this Wikiplacer and any other commercial product is, that we are a group of people with many years experience in the industry, sharing our combined knowledge for free, in...

The wikiplacer project is already going full speed and we'll post our progress on WikiPlacer this week.
We have decided to build a single nozzle, single head table top machine for the hobby market,...

Thank you for the interest in the feeder project. The motors are likely purchased directly from China or through a direct importer like Kysan Electronics I selected A12FT-5V400RPM
Empty feeder...

We would love to have you on the Wikiplacer project. Get a password and sign in or write a PM to me. At the moment, we are discussing how much Wiki we want to be, before we post any meaningful...

I got motors and encoder discs placed in space. Will need a smaller encoder for Z-axis as well and will keep on going on WikiPlacer

The encoder discs Nails suggested are actually made out of Mylar not glass and pretty inexpensive as well. I'll put these in my drawing.

Very well. I'll look at all options. Since we also want to rotate the disc at the turning station, we may require a two stage drum. One, where the turning motor engages and one for the encoder strip....

Before I go into weekend relaxation, I would like to discuss, what I got so far.
I was briefly searching for off the shelve encoder discs, without luck so far. Also knowing, that glass tends to...

Until we have a host and website for the Wikiplacer we continue here.

In our first on-line brainstorming session, we got already quite some details accomplished.

We’ll need your and customer...

Here is another option of linear motion, but less expensive than linear motors:

Control of Inverted Pendulum with Servo Pneumatics - YouTube

Assuming you didn't program the circular cut as a 3D cut and the z axis suppose to move first before the circular cut, than this is a totally different issue than motor wear.
1. Is the bit capable...

This is a good and valid point RomanLini and I'm scared about this as well.
There are a few things I would propose for this new design to make copy clones more difficult.
1. We could develop our...

The idea of individuals contributing to a larger scale design project isn't all that new. GT | Newsroom - Georgia Tech Research Institute (GTRI) Receives $1.5 Million to Create Online Collaborative...

I'm all for a closed loop system. However, we should make these decisions with all team members involved and will likely come to the same conclusion.
Linear motors are still too expensive, unless...