Oh hi, I abandoned this project long ago and replaced everything with extrusions.  It became, essentially a 3018 machine.  I am using one of those GRBL boards you buy on Amazon with an LCD controller.

can you paste all parts list?

I sorta built it as I went along.  Here is a preliminary set of parts:

1) Left side (gantry) - 6mm acrylic

2) Right side (gantry) - 6mm acrylic

3) Table Plate -- acrylic

4) Table Plate Side, Left -- acrylic

5) Table Plate Side, Right -- acrylic

6) Table Plate back plate -- acrylic

7) 8mm Rod supports (metal or plastic) x 6

8) Y leadscrew

9) X leadscrew

10) Z leadscrew

11) Table support blocks x4 (plastic), 3D printed

12) Table bearings and pillow blocks (LM8UU) x 4

13) Leadscrew coupler x3

14) NEMA 17 or 23 motors (I am using 17) x 3

15) MDF table (200mmx200mm)

16) Y axis 8mm rods x2

17) X axis 8mm rod x1

18) Z axis 8mm rod x1

19) Leadscrew bearing and mount x3

20) Printed Z carriage (note, NOT X carriage)

21) Z carriage plate -- acrylic

22) Stepper L-shaped mounts x2

23) Z carriage T-nut x2

24) X carriage T-nut x2

25) X bearing and pillow block (LM8UU) x1

26) Z bearing and pillow block (LM8UU) x1

27) 8mm Rod clamps x2

28) L-shaped brackets (1"x1") x4

29) A lot of M3 hardware (screws, nuts, washers)

For electronics, I will probably put in a RAMPS or a GRBL-Pi on a Model B+ RasPi, and mount it to the side

Thanx for the reply

Looks interesting - do you have it documented somewhere in more detail than just one photo?

This is actually what will become my 3-in-1.  I based this on my CNC machine, and use a flying gantry with a few printed parts.  My intent is to install a 'head' that holds a spindle and run the whole thing off either a Sanguinololu board or a RasPi with a GrblPi board on it (using Teacup).  I am still gearing up for this but the intention is to also replace each acrylic panel with an aluminum equivalent just to make it stronger and more rigid.  I want to keep it to desktop dimensions with the table currently at 6"x6" but I easily scale up to 8"x8" by widening the bed and using longer rods.  The most I imagine this unit being is 18"x18" which may be sufficient for most.  Really large scale machines have already been done.  I can easily, for example, also extend my ShapeOKO to be a printer and laser engraver with different electronics.  What else would you like to know?

Thanx for the reply. TBH nothing specific. My mind is walking through the similar route currently - just without my own CNC machine currently ;) I am planning to do a desktop CNC diode laser engraver / dremel mill and are considering using acrylic for first version before I go for 6mm aluminium (which seems to be the tickest aluminium plate available around here within reasonable budget). And as you used 6mm acrylic it sounded like a good read if its more completely documented to see what would be the typical issues one can run into when taking that route. The local MAkerlab has a laser that can cut acrylic but for metal parts I would have to get some local metalworking shop to do the cutting which can be quite a pricy for a unique set of parts. 

I cut my own metal parts as well as tge acrylic.  I use a scroll saw or jigsaw with a metal bit and drill out holes with a press.  For the acrylic I highly advise you not use nuts and use thermoplastic inserts instead.  I will tap holes in my aluminum.  I may also cover my acrylic with sheet aluminum bonding it to the acrylic for strength.  With the inserts in place I can lock screws in with stronger hardware and apply more torque to them.  If you need any kind of help let me know.