[Islam]

Front part of the table designed for dovetail.

[Islam]

Z axis movement, please note the vertical movement of the mechanism block to compensate the axial displacement of the wire along the threaded axis.

https://www.youtube.com/watch?v=zUId...ature=youtu.be

[Islam]

1st trials.
spiral column - 3 door - 1.5" diameter - 17" length - 3" pitch
Square column - 4"x4"

[Islam]

Driving mechanism of the gantry is located in the rear side of the machine using only one stepper motor.

https://www.youtube.com/watch?v=UuMg...ature=youtu.be

[louieatienza]

Very cool machine! Nice work...

[Islam]

Two samples has been done today by the rotary axis.

[Islam]

ramp column made using the ability of rotating the 4th axis around its joint.

[Islam]

Two wall clocks.
1st one is a combination of 3.0mm sheet metal cut by my diy plasma machine and a plywood engraved by my diy cnc router.
2nd is 100% made by my cnc router on 16.0mm plywood.

[Islam]

Work piece 600 x 600 mm (23.6" x 23.6")

[JerryBurks]

That looks very nice. I guess the Arabic writing lends itself more to artistic pattern and calligraphy than the Latin alphabet. You built a very capable machine with creative technical solutions.

[Islam]

A candle holder made of ash wood and 2.70mm sheet metal.

[Islam]

600.0 mm height - 58.0mm max dia. - 15.0 mm min dia - pine wood

https://www.youtube.com/watch?v=3d7gRC5L8bo

[Jason Marsha]

Love this machine. How about a video of the overall machine cutting/routing wood.

[Islam]

Love this machine. How about a video of the overall machine cutting/routing wood.

I am going to take a video of the overall machine while cutting by a professional Cam.

[Islam]

My method in photos to produce four Cabriole legs at the same time by my machine.
Using 4 x identical square columns 60x60mm attached to each others as one square coloumn 120x120mm by a tape and two steel flanges screwed to them from their ends.

[Islam]

Routing the four attached columns according to the outer profile of the Cabriole leg, and then rotate every column 180 degree and reattach them as one column again and engrave the new column according to the inner profile of the Cabriole leg as illustrated in the attached photos.

[Islam]

Video of the roughing engraving of the rear profile of the four Cabriole legs.

https://www.youtube.com/watch?v=fST_...ature=youtu.be

[iwaskevin]

Islam very nice job. its nice to see people think outside the box !!!

[FandZ]

Very nice work, Please forgive me if I missed it, but what cam program are you using for your 4th axis? Every now and then I think about adding a lathe attachment on my cnc machine but the cam portion stops me from really perusing it.

[Islam]

Very nice work, Please forgive me if I missed it, but what cam program are you using for your 4th axis? Every now and then I think about adding a lathe attachment on my cnc machine but the cam portion stops me from really perusing it.

I use my own new technique to operate the stepper motor of the 4th axis in one direction simultaneously with the other two axis (Z & X) or (Z & Y) instead of rotating the 4th axis motor left and right every rad.
This reduced the column engraving time dramatically (i,e from 1:30 hour to 7.0 min) and achieves much better surface finish)
This technique is implemented by editing the G code generated by VcarvePro as follows:

1. Draw the upper half side of the column profile using only arcs and lines (do not use poly-lines or splines).

2. Load the drawing to VcarvePro.

3. Make the origin point in the upper left position.

4. Use the (create profile tool path) strategy to generate the tool path using any tool, but make sure that the tool is (ON) machine vectors in the setting (not inside or outside)

5. Edit the generated tool path as follows (If your rotary axis is parallel to the X axis):

a) Delete all of the (Z) letters and their following numbers.

b) Replace (G17) by (G18)

c) Replace (Y) by (Z)

d) Replace (J) by (K)

e) Replace (G2) by (B)

f) Replace (G3) by (G2)

g) Replace (B) by (G3)

This edited G code will move the Z axis along the X axis according to the column profile but without rotation of the 4th axis, So we will add what will rotate the 4th axis simultaneously with the X & X axis ass follows:

Suppose that the rpm of the 4th axis is 60 rpm.
Suppose that the resolution accepted = 1 rpm/1.5 mm

This means that the feed rate of the rotary axis to achieve the last assumptions = 60x1.5 = 90.0 mm / min

Also this means that the rotary axis will rotate 1.0 rad every 1.5 mm along the X axis.

So we will add the letter (A) indicating the 4th axis to each line followed by a number (the length/1.5 x 360)
(i,e if the length of the 1st arc along the X axis is 150.0 mm, we must add: A36000
The line will be something like:
G2 X## Z## I## K## A36000 F21600

And every line must be followed by the line:

G92 A0.0 (Which will reset A to Zero after each line.
If anybody is interested in my technique I can clarify it better by photos.