CNC DIY 12x12 2008 Assembly Instructions

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STEP PRE-01

STEP PRE-01

A small vice makes setting the bushings easy. Put them in a little at a time and check that they are going in straight.

STEP PRE-02

STEP PRE-02

STEP PRE-03

STEP PRE-03

STEP PRE-04

STEP PRE-04

STEP PRE-05

STEP PRE-05

STEP PRE-06

STEP PRE-06

STEP PRE-07

STEP PRE-07

STEP PRE-08

STEP PRE-08

watch the little holes on the edge and make sure that you have them on the same side, this is important!

STEP PRE-09

STEP PRE-09

STEP PRE-10

STEP PRE-10

STEP PRE-11

STEP PRE-11

we used the small washers, not the large ones. Note how the washer just covers the outside of the bushing to hold it in place.

STEP PRE-12

STEP PRE-12

STEP Y-01

STEP Y-01

Thread the brass parts assembled and compressed. The spring keeps equal pressure on both sides of the thread to minimize backlash when the motor changes direction. Not shown here is that part 3 with the small bushing is mounted to the end of the thread with the short extension and the long motor extension is at the top. A large drill press will help. We were able to set this in place with a soft mallet, go slow and make sure you do not bend the screw. We set the short side into the bushing that is flush with part number 3 (on the outside the bushing is slightly recessed). We were able to start it with large wood clamp and then set part 3 flat on a wood surface and gently tap it down on the long screw, checking to see when it was fully seated into the bushing.

STEP Y-02

STEP Y-02

Note that the small holes on the side ALL face up.

STEP Y-03

STEP Y-03

STEP Y-04

STEP Y-04

STEP Y-05

STEP Y-05

remember: these are metric so go get a set of metric Allen wrenches; don’t even try to fake it.

STEP Y-06

STEP Y-06

STEP Y-07

STEP Y-07

STEP Y-08

STEP Y-08

STEP Y-09

STEP Y-09

STEP Y-10

STEP Y-10

STEP Y-11

STEP Y-11

STEP Y-12

STEP Y-12

STEP Y-13

STEP Y-13

STEP Y-14

STEP Y-14

STEP Y-15

STEP Y-15

STEP Y-16

STEP Y-16

STEP Y-07

STEP Y-17/b>

Note that the holes on the edge of the outside box are ALL DOWN, the traveling parts mounted to the screw (26:27 and 28:29) are ALL UP.

STEP Y-18

STEP Y-18

<b>STEP Y-18

Squaring out the back plates. This is the bottom and it will take a lot of work to mount the Y axis if you do this now. Put in just 8 22x wood screws to square it up and don't tighten them too much. Then you can easily take it off to mount the Y axis and then put it back.

STEP Y-19

STEP Y-19

This is the bottom. Use the small screws and here is where an electric screw driver comes in really handy.

STEP Y-20

STEP Y-20

Flip the whole thing over. Use the small screws, line up with the traveling parts. (26:27 and 28:29). We put the four corner screws in first and this helped. To adjust the position we used a small piece of tygon tubing over the end of the screw where the motor is going to go and our electric screw driver. Go slow.

STEP Y-21

STEP Y-21

STEP Y-22

STEP Y-22

STEP Y-23

STEP Y-23

STEP Y-24

STEP Y-24

STEP Y-25

STEP Y-25

STEP Y-26

STEP Y-26

STEP Y-27

STEP Y-27

Watch the direction of the cable connection. Look at pictures of the final and align the motor. Put bolt (no washer on the motor side) on plastic side, washer, lock washer, nut. Don't forget to tighten the four set screws on the coupler between the motor and the screw shaft... Use a M2 allen hex wrench.

STEP Y-28

STEP Y-28

STEP Y-29

STEP Y-29

== There is a little change in lead screw install for our 12x12 model. It is no longer a tight fit between the lead screw shaft and the ball bearing. You can find a lead screw end support nut(three of them, one for each axis), which will hold the lead screw in place with the ball bearing. Please refer to the following link (The instruction for our 7x7 model, step Y53-Y55.) http://www.zentoolworks.com/files/CNC7x7Manual.pdf ==

STEP Z-01

File:12x12 STEP Z-01N.jpg

STEP Z-01

STEP Z-01

OK: we moved the Z here because you need it to complete the Y axis. Everything you learned doing the X axis is redone here. Same rules: take time to check the the parts.

STEP Z-02

STEP Z-02

STEP Z-03

STEP Z-03

Parts 4-5 is on the left, then the anti-whiplash brass, then parts 6-7 with the large hole toward the inside (so the brass can go through) then part 8. Note the the screw drive has been set into the bushing in Part 3. We did this with a rubber hammer but a drill press would have been a better idea.

STEP Z-04

STEP Z-04

You will need two 3M bolts and 4 washer, 2 lock washers, and 2 nuts. Bolt the anti-whiplash to part 5 using the large holes in part 4 for access. Note the holes on the edges. Keep track of these, they become important.

STEP Z-05

STEP Z-05

Use 3M bolts with 4 washers and 2 nuts. fasten part 3 to part 8, heads on the outside, nuts on the inside. Thread the rails through the bushings and fasten to part 8 using 5M 22mm hex bolts with one washer.

STEP Z-06

STEP Z-06

using 2x 3M hex bults and 4 washers and 2 nuts; fasten part 3 to part 9 such taht the head is on the 3 side and the number 3 is hidden from view and mount the part on the side that does not have the 9.

STEP Z-07

STEP Z-07

This shows the completed part and the parts you need for mounting the motor. Mounts are 2 part12s and are mounted with 4 large wood screws and 4 washers.

STEP Z-08

STEP Z-08

Fasten the two part12s to Part9 on the same side as the Part3. We put the 12's facing inward for aesthetics. The 12s should be parallel with the long axis. Now thread the drive rod through the mount and fasten the rails using 2 5M hex bults and 2 large washers. Did you remember to check the holes so that the outer parts point up and the inner parts point down? Just checking...

STEP Z-09

STEP Z-09

4 x large wood screws and 4 x small washers and 1 x Part2 to the Part12s to form the complete moter mount. Put the motor coupling on the screw shaft.

STEP Z-10

STEP Z-10

Here is a good look at the edge holes in the proper alignment. Part21: we will visit this again when we mount the Z axis to the Y axis, but not quite yet...

STEP Z-11

STEP Z-11

We put the front plate on with small wood screws and small washers (Part16) then turn it over to mount the motor. 4 x 3M hex bolts, 4x small washers, 4x small nuts, 4 x lock washers. Head to the outside, on the inside put a washer, lock washer, then nut. Look for the plug. When you mout the Z axis you want this to be at the back so in this orientation it should be UP.

STEP Z-12

STEP Z-12

If you didn't mount part16, above, then do it now.

STEP X-01

STEP X-01

At this point you are an expert: Like they say in Med school: Watch one, do one, teach one... From left to right: Part 17, 18, 20, 19.

STEP X-02

STEP X-02

Start with the tricky part, putting the short shaft end of the long screw into the bushing on part 17. A drill press helps. We were able to do this with a rubber hammer and going very slow and checking allignment. Add part 18 then part 31. Put the anti-whiplash brass on the screw (compressed) and give youself 12 to 14 cm from the end.

STEP X-03

STEP X-03

Get ready to attach the brass as we did before: 2x 3M bolts, 4 small washers, 2 lock washers, and 2 nuts.

STEP X-04

STEP X-04

Bolt and washer, set these up for the next step.

STEP X-05

STEP X-05

Thread the screw though the part and then add a washer, lock washer, and nut to attach the anti-whiplash to the plastic.

STEP X-06

STEP X-06

Thread in the rails.

STEP X-07

STEP X-07

attach the rails to the 17 and 18 pair (opposite the motor mount, the numbers may be hidden at this point) using M5 allen hex driver. Use the 30mm bolts (second shortest) and large washers. Also prep two short thin bolts with washers, ready to add washers and nutes on the other end. This will hold parts 17 and 18 together.

STEP X-08

STEP X-08

This shows parts 17-18 with the rails attached and bolted together. Be glad that this part needs no name anymore...

STEP X-09

STEP X-09

Now to the other side. Here is part19 and 20 face them like so...

STEP X-10

STEP X-10

and flip them together...

STEP X-11

STEP X-11

Like this... This will be the motor mount. Two M3 nuts, 4 small washers, two lock washers, two nuts. Four large wook screws and 4 small washers to attach the two part12s.

STEP X-12

STEP X-12

STEP X-13

STEP X-13

this shows the parts after the two M3 nuts, heads out...

STEP X-14

STEP X-14

And with the part number IN, we have yet another "nameless" part, let's call it the Y axis motor mount plate (the Yammp?)

STEP X-15

STEP X-15

Now put the Part12s on, hide the numbers if you like, use the 4 large wood screws and four small washers. This is another time that new electric screw driver comes in handy...

STEP X-16

STEP X-16

STEP X-17

STEP X-17

STEP X-19

STEP X-19

don't know where Y-18 went, but arrange parts30 and 31 and put 21 on them so that the holes align. Use lots of the small screws and small washers. DO NOT DRIVE THEM ALL THE WAY IN YET. Note that the holes in 21 are slots, you need some jimmy room here...

STEP X-20

STEP X-20

Look on each side of the part 21 and you will find 4 holes on each side. Drive in small wood screws with small washers on each side: now you can go back and tighten down all the screws on the face of part21.

STEP X-21

STEP X-21

STEP X-22

STEP X-22

here is a shot of the other side and the four screws that go into the edge of Part21.

STEP X-23

STEP X-23

Tighten the rest of the screws on Part21. Yes, the electric screw driver has now paid for itself...

STEP X-24

STEP X-24

STEP X-25

STEP X-25

set up for the motor mount plate, thread the drive screw through and fasten the rails on using large washer and M5 x 30 mm nuts.

STEP X-26

STEP X-26

completed Y axis rail, all it needs is the motor

STEP X-27

STEP X-27

4 large wood screws, small washers (they have to set into part2) one part 2. Add this to the Part12s.

STEP X-28

STEP X-28

STEP X-29

STEP X-29

slide the coupler onto the drive rod

STEP X-30

STEP X-30

mount the motor, same as for X and Z axis and WATCH THE PLUG DIRECTION!!! 4 x 3M hex bolts, 4 x small washers, 4x small nuts, 4x lock washers. Washers are not needed on the motor side.

STEP X-31

STEP X-31

Attach motor so that the plug goes toward the back.

STEP X-32

STEP X-32

STEP X-33

STEP X-33

Now we attach the Z axis assembly to the X axis. Z axis motor up, plug to the back.

STEP X-34

STEP X-34

Use the small wood screws and small washers: two on the top, two on the bottom of the back plate.

STEP X-35

STEP X-35

Same for each side, two on the top, two on the bottom.

STEP X-36

STEP X-36

And add small screws to these 6 points on the bottom as well.

STEP X-37

STEP X-37

These are the two hidden bottom screws from the last images.
These may require you to drive the axis to the center. We did this by turning the screw by hand, but if you plan ahead (before you mount the motors) you can drive the screw with a drill. We used a small section of 1/4" tygon to couple the drive screw to the drill (used a large screw driver head on the drill). Go slow.

STEP X-38

STEP X-38

Now get ready to mount the back plate (part22)

STEP X-39

STEP X-39

You have 8 wood screws with small washers

STEP X-40

STEP X-40

and you have a complete Y and Z axis assembly!!!

STEP A-01

STEP A-01

Use 5M 45mm hex bolts (4 of them) and 4 large nuts, 8 large washers.

STEP A-02

STEP A-02

...and fasten to one of the three sets of holes on the side of the X axis assembly. The hole choice is according to where on the plate you want the working medium to be. Washers to on both sides of the plates. This is where is it handy to be able to take the bottom plates off of the X axis assembly so you can get at the back side of the bolts, it's a tight squize.

STEP A-03

STEP A-03

Now you've finished except for the wiring harness. If you haven't attached the bottom plates (part32) yet, do so now...

STEP A-04

STEP A-04

Step back, deep breath... Admire your creation. Call over your significant other and gloat a bit.

STEP A-05

STEP A-05

STEP A-06

STEP A-06

Cool, eh? Don't forget to double check your screws are tight (especially the motor couplings).

Now if I can just remember where I put the soldering iron I can start on the wiring harness...

STEP A-07

STEP A-07