pauls diy cnc router

[catsam]

I have started by getting some of the parts for my cnc mill the base is a 30mm sheet of ply 1200mm by 600mm and you can see from the photo I had some luck with the Y axis I did a deal with someone. they had a 5mm pitch ball screw assembly unit on a THK rail with a stepper motor. which was a good starting point for the mill I have also started to make the Z axis from a sheet of aluminum and some steel rod you can just see next to the router

[catsam]

I am just laying out the parts. its just to see how they will fit on the table. the round rails are 12mm hardened polished steel which will run on 4 open linear bearing carriers which I got from ebay. I also got from ebay was the 1500mm long trapezoidal screw with 3 nuts. you can see the Z axis witch i have made. its just stood by the Y axis unit i got

[catsam]

I have fixed the Z axis to the Y axis and cut a 150mm bit of the trapezoidal screw i got from ebay . the X axis should have 1000mm off travel on it . and it should give me 150mm travel on the Z axis. it needs to have the ends milled down to fit the bearings I don't know how
I am going to do this
I might have to get this done bye some one. I also need some blocks made for the ends and the nut

[catsam]

this is the round rails it is not bent it just looks

like that in the photo I had a problem I could not drill the rod it was to hard.

to get someone to drill and tap the rails they would have cost £60 each so I welded some tabs to the rails

you can see in the photo how the rails should work I hope they will take the wait of the Z axis.
the rail is on 20mm by 20mm box steel I will have to see how this works I think the ply bed might bend in the middle to with all this wait

[catsam]

for some reason i did not take any photos off the parts for the sides of the gantry I made for the Z axis I think is was because they are just some bits of metal cut out of a 5mm sheet of steel and welded they did not look all that existing so I did not take any photos. they did take a long time to cut out with a jigsaw.
it seems to work well I cut a hole in the side to keep the wait down

[catsam]

I have put the X
Y and Z axis on the table they slide ok I still need the
trapezoidal screw to be milled down at the ends to take some bearings for the Z axis this I can not do my self i don't have the tools and it need to be right

[catsam]

I have made a test clamp out off ply for the router its not all that nice looking but it dose show me how it will work.
I also have put some micro switch's on the y axis this was not essay to find some where to put them with out them getting in the way

[catsam]

I have had some blocks made for the nuts and bearings for the axis which I could not make ( what I need is a cnc mill )
I could have made them bye hand but they would need to be done right to make them work with the lead screws for the X and Z axis

[catsam]

I have had a cool black box made for the power supply and drivers for my cnnc mill and on top of it is some off the parts witch will be going in the control box

[catsam]

I have started to put some parts in the control box. the red and green switch will start and stop the mill(e stop) and the black slider switch witch you can just see will switch between two home switches on the X axis a long and short one

[catsam]

here I have put some plugs on the back of the box for inputs and out puts for the home switches and motors there is also a 240v output for the router

[catsam]

here are my stepper motor controllers
and two motors