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Has any one used one of the autolube pumps form ebay?

like THIS ONE

Its for a Nova mill so should be ok size wise but not sure on reliability etc.

Hi A-camera
yes the dedicated pci to parallel like the mesa 5i25, I think they are better than the standard parallel but wanted to see if the Ethernet versions are better?

I saw your thread on...

What spindle are you planning to use? I know there were a few mentioned but cant see which one you decided on.

The thing to remember with spindle bearings is the amount of pre-load they have which...

I've just started looking at the frame for my new machine and whilst looking at different ideas I have come up with what I think is a nice simple design that could be used as a basis for most...

Had a bad Christmas Jazz? :0)

Before this gets really catty would it not be an idea to turn it in to something more positive and usefull like a standard design for a 2.2kw router? Yes I know work...

Yep, as I have said before you cant easily design every element of a machine without masses of engineering know how and expensive FEA software so the best approach is to over engineer the frame.
...

Merry Christmas all.

Here's to a working machine in 2015. Lol

Well to be fair the first post did say 1000N cutting force so guessing big cutters will be used and with 0.05mm accuracy that's not much error budget within the whole machine.

Without getting in...

I think it was left hand to resist loosening during rotation, you should be able to chase the direction of the thread that is visible.

Mines a mix of atlas and halifax. Robbed all the best bits...

Have you got any space between the base and end plate on the bottom axis (Y- I think on a mill)? I'm just looking to put ballscrews on my mill and want the biggest diameter possible as it is only...

:whistle::whistle:




Delrin will have reduced friction But I found that it just acted as a damper and masked the backlash. measuring low backlash only under a no-load condition. Once the load...

What he said..

You can easily get rid of backlash in lead screws by tensioning (or compressing) two nuts together but the resultant friction is often more of a problem than the backlash. My little...

Yep that looks good. Mk10? so you have only just started then:friendly_wink:

I would increase the distance between the y axis rails to match the z axis plate to increase bending and torsional...

Merry Christmas everyone, After a long lull here's to hoping I can building something CNC related during 2013:friendly_wink:

And of course all the best to Irving :beer::beer:

You get it with your delivery for the "next purchase", £100 seems resonable, I think I payed £80 ish from china last year.

Hi Steve

How did you get on with the normal bearings? I was looking at the 61908 (45x68x12) or the 61809 (45x58x7) as I was hoping the balls where smaller, which is better for high speed...

Welcome Andrew

Are you looking to build or buy?

The first obvious problem is that you will need to cut all the way through in one go so a sacrificial bed will be needed and probably double...

Hi Rick
Only just seen this and dont know if your still looking but the plastic your after is also used for scratch plates on guitars etc. Search "3 ply scratch plate"

or look here...

Nice design, I'm not sure I can find anything wrong with it :smile::smile:

maybe a slight tweak here and there but everthing seems to be where it should be, I like the Z axis thats how I think...

OK I'll put my head above the parapet then :heehee:

I've not had any experience with them, only looked the web site. and I'm only going to say that IMHO they seem quite expense for what you get....

OK so I as a result of a question on another thread here is a very Basic calculator for precision round rail.

Unfortunately its not the 'bells n whistles' version I had planned but hopefully is...

Since I've just had my structural analysis exam today I had vowed not to do any more calcs for at least a week........:nope:

So use this site...

heres what I have so far. Any comments....:smile:

Jason has done an excellent job of the PCB, it even fits on a 100x80mm board, just need to to sort out the ground planes and star earthing then it finnished. :beer::beer::beer:

Heres the latest...