Giant 20' x 3' x 2' router build

[charlieuk]

ok cool i will try work that into the design. is there a standard method for doing the belts i couldn't find much when looking last week?

[JAZZCNC]

ok cool i will try work that into the design. is there a standard method for doing the belts i couldn't find much when looking last week?

No real standard way regards laying out as it's often machine dependant but regards sizes etc then there is kind of standard in that most use in HTD 5mm pitch belts and either 15 or 25mm wide. Pulley sizes will depend on if your having a ratio but from experience between 18-20T for 1:1 ratio is best. If you go too small you risk excessive wear and jumping teeth due to fewer teeth being engaged. Equally don't go too large on pulley size as the extra inertia will have a negative affect.

Really this is something you should have worked out before ordering the ballscrews as you could have had the screws machined in such away that they suited pulleys and made life easier.