Warco Major CNC build log

[Robin Hewitt]

Robin have you given much thought to the "hammering out ceremony" once the ballsrew is attached?

I'm doing it the same way I did last time, the screw housing bolts to the honking plate. Only difference is I'm using 2 screws this time instead of one. I think it needs a bit extra to lock the screw parallel to the quill.

I may well be interested in your old Z-axis... its still likely to be an order of magnitude better than anything I can produce (yet).

Not exactly pretty but you can have the X and Y screws if it helps They are cluttering up the workshop, probably going in the bin next time I tidy the shelves. If I find a box I could send the whole she-bang standard parcels.

I bought zero backlash nuts from Marchant Dice for the X and Y, odd things that you had to crush sideways to set. I never got the backlash below 3 thou. Also I didn't get the ends machined, just glued on extension sleeves with Loctite. With the benefit of hindsight, a false economy.

The Z axis was a disappointment, nice screw off ebay but I didn't eliminate flex and it always fell slightly short of the mark. I'm hoping the honking plate will fix that.

Robin

[irving2008]

I'm doing it the same way I did last time, the screw housing bolts to the honking plate. Only difference is I'm using 2 screws this time instead of one. I think it needs a bit extra to lock the screw parallel to the quill.



Not exactly pretty but you can have the X and Y screws if it helps They are cluttering up the workshop, probably going in the bin next time I tidy the shelves. If I find a box I could send the whole she-bang standard parcels.

I bought zero backlash nuts from Marchant Dice for the X and Y, odd things that you had to crush sideways to set. I never got the backlash below 3 thou. Also I didn't get the ends machined, just glued on extension sleeves with Loctite. With the benefit of hindsight, a false economy.

The Z axis was a disappointment, nice screw off ebay but I didn't eliminate flex and it always fell slightly short of the mark. I'm hoping the honking plate will fix that.

Robin

Robin,
That sounds very generous of you, if it would get me up to speed quicker and allow me to create updated parts later then that would be great. How likely are your Major parts to fit the Minor ?

[Robin Hewitt]

Pic 1: Cheeks put in with a couple of bolts. Needed a bit of extra removing from the left cheek because the casting was far from straight. Heavy application of the angle grinder at the bottom before the ball screw bearing plate would slide home, had to cut out an extra 7.5mm

Pic 2: Ball screw fitted, view from the side. This is as close as you can get the ballscrew to the quill. Hence requirement for honking plate.

Pic 3: Pile of bits removed, Irvings' if he wants 'em

Should have taken a front view with the ballscrew installed. Maybe next time.

Next I have to relieve the cheeks a tadge so I can fit the motor plate, bit of a poor measurement there.

Then make a false honking plate, cut the pulleys and wire it up so so I can make a real honking plate

Robin