Thread: The truth and nothing but the truth

Hi Ted,

Depends on the size of your build as to whether the cost prohibits using Ballscrews.

For me you cannot beat ballscrews and square lineal rails.

cheers,
Kym

Hi Kym,

Mind if i ask which is the best (and hopefully the cheapest) place to buy linear rails and ball screws ?

Thanks and best regards

Harender

Linear rails are available in Brisbane from SES Linear Bearings and also from eBay.

Supported rails are slightly cheaper and also available at the same places.

Ball screws will have to come from China if they are to be affordable. Many of the forum members use Solar Jean

I've built with ballscrews, rack and pinion and belts.

Depends what you are building. Is this a router for wood and plastics? I would not hesitate, rack and pinion on X and Y for me every time.

I remember attending a large engineering show that they have in Sydney or Melbourne every year.

I went around and looked at every computer controlled machine there similar in operation to a router (there were lots)

Plasmas, water jets, routers, punches. All BIG dollar machines. Every one with the exception of one Thermwood router was rack and pinion.

Most people I talk to, building or using similar machines who talk down rack and pinion, have never actually used it.

Again, this all depends on what you are building. A wood router say 900 x 1200 and up, can't go past R & P IMO.

I am with Kym on the square linear rails.

Greolt

G'Day All Thanks for the input I hope to build a 900mmX1500mm and wan't to do 2d/3d carveing and some scale model plane plan cut outs R &P sounds good what about 3/4 4 start leadscrew for X&Y and 1/2 4 start leadscrew for Z

Ted