2+2+3 More Plasma builds, double the joy ! 3X2M and 2.5X1.5M cnc plasma build.

And tandem Y axis are finished on both machines !
Looong day, it is 2:50AM, so in a bit i will be chasing some dreams, but i doubt i catch anything, i dream about once a year.
Here is a short video of both axis moving at 15m/m, or "breaking them in" as car guys would say.
Enjoy, and thank you all.
Regards,
Tom.

This was tough, i sure know how to complicate everything !
This is the final implementation of the Z axis, after many, many others i tried and discarded them for being to heavy/bulky/ugly. :

The profile is 28.5cm long and 34mm wide inside so not much space there for all the stuff that i had to put inside
Travel is 165mm, screw can do 220mm, but the bearing took 100mm inside, so i got left with only 185mm to work with.
I might get rid of those screws on the top, but that would limit travel by 15mm, so that would leave 150mm of usable travel. Do keep in mind that there is another 10mm travel for the floating part of it, so the only unused space inside is 10mm used by an alu plate connecting the rods inside and holding floating stuff and leadscrew nut, here is a picture of the floating part in the UP position:

And in the DOWN position, notice there is no sensor/switch there, will have to put that in when i dismantle it to make another one, and maybe take some pictures, :

Here is the back side, plain and clean ( well not cleaned yet, but there is nothing there ) :

And here it is extended to the bottom limit :

Took two full days to make, several injuries to the left hand ( the one holding down the stuff while the right hand does the damage ), had to use a bit smaller motors (Nema 17), the leadscrew is 8mm pitch and 8mm thick by some miracle of very nice quality, 16mm round rails on the inside with 4 linear bearings, total weight just under 3KG and 128mm wide. The mounting on the machine will have to be done on the sides as there is no place for anything on the back side, any screws there will interfere with the movement.
More on the way.....

2 days! I took 3 months!

rodw wrote: 2 days! I took 3 months!

That is just for the Z axis, but since the day was not over yet i started putting parts together for another 3 and decided on removing the long protruding screws, so it will be just a box with a motor !
The main problem, i am running out of aluminium ! Not good, not good.
You took 3 months for the whole machine, i really hope not just for the z Axis ?

Nah, 3 months in my spare time just on the Z and Y axis drive including the CAD design (47,000 versions probably) and remaking parts you and Andy made me redesign and a seoncd version of a magnetic breakaway that actually worked. Then I found out parts I might have spent a day or so making were available off the shelf!

What is the material costs without nema17? Approx!