Definately a scrapyard challenge

[Swarfing]

Jonathan

Have you bought the ballscrews yet? If not then get 10mm pitch (RM1610) for X/Y to get a higher feedrate and use HTD timing pulleys (although 1:1 ratio is about right for those motors and 10mm pitch screws adding the pulleys still helps as it reduces resonance). 5mm pitch screws (RM1605) will work but it wont go anywhere near as fast, or more importantly the acceleration will be less and possibly vibrate more as the screw is spinning twice as fast.

He is using an MDF box and i think the screws he has ordered are much more suitable, you need to stop pressing everyone with the need for speed? shake rattle and role will not bode well here.

Bruce your screws will be just fine for the application you have there.

[Jonathan]

He is using an MDF box

So was I, and I am now though it's no longer there for strength. To start with that will be a limiting factor, but there's always the option to add a steel frame ... or even a simple rectangle on the bed made from steel box would help a lot.

you need to stop pressing everyone with the need for speed? shake rattle and role will not bode well here.

That's why I mentioned you'll get better *acceleration* with 10mm pitch screws, and less vibration from the screw as it's not spinning so fast. I agree high rapid speeds are pretty much useless, but good acceleration is important. When I cut the mayan calender using lower aceleration values (as I was limited by the computer) than Jazz did added over an hour to the time it took. That's quite an extreme example admittedly, but the general trend is true.

Yes they will work fine, but not as well as could have been.