Hacking a Roland CAMM3 PNC-3000

[black5f]

My cnc

Some tests during the rebuild
http://www.youtube.com/watch?v=8MmqXxubpXI

A long boring vid but shows the tool depth process:
http://www.youtube.com/watch?v=LhC_nnL0uqI

Moving fast, 250mm/s
http://www.youtube.com/watch?v=KGCIQ4nq-tE

[Robin Hewitt]

Moving fast, 250mm/s

Gosh that's quick :surprised:

Where d'you get the bellows from?

[black5f]

Impractically quick! (and dangerous!). Usually cut wood between 5 and 20 depending how deep. Bellows came with the unit (Isel), 20 years old now. They are actuall just folded with U shaped thin plastic formers glued in the folds.

Tom

[Robin Hewitt]

Me again

I replaced the 20mm linear shafting and it certainly tightened it up.

Replaced the X, Y ball screws and doubled up on the nuts to add a 1kN preload :naughty:

The ebay M8x.75 half nuts I bought on Monday haven't arrived. Can't thread the ballscrews 'til I have the nuts or it suddenly becomes guesswork for the length and die closure.

A very nice man at bellevillesprings.com gave me half a dozen washers to preload the thrust bearings. Their £15 minimum order translated in to 150 pcs :whistling:

The metal for the splash guards did arrive so I will probably start on that.

Pic is the bed and saddle upside down.

[Robin Hewitt]

I've extended the table 2" forwards with a lip. Then I decided that driving my Warco mill using MSDOS was a right PITA after seeing what Windows 7 can do with this thing.

I have the new software about 80% complete so I'm going to do that before I cut the splashguards. It takes a DXF file, converts it to a cut and then drives the mill.

Back in a few weeks, if I don't get sidetracked again :whistling:

Robin

[Robin Hewitt]

Me again

Splash guards fitted and looking a bit '70s retro.

An IP65 sealed box bolted to the right hand end is the suds tank, I'm using the Tee slot as a gutter.

Next, sealing it with gasket compound and cutting some slots in the bed so I can fit tee nuts from above and improve the drainage.

Robin