RE: Shop made Z-axis

2014-08-17 Thread Bill Bulkeley
The weight is not an issue if you worried about the thread being strong enough to lift the router you just use a longer lead screw nut Thus using more thread to achieve the same strength and a metal nut. I went with a cast iron nut with mild steel leadsrew 1/2 inch dia unf 20tpi but that was w

Re: Shop made Z-axis

2014-08-17 Thread Tim Krause
1/2-10 tpi acme is very common here in the states. A tap will cost around $45. 20 turns per inch sounds like a lot of winding to me. I was not concerned about the strength of the thread, but how the weight can affect the screw. -Tim - Original Message - From: "Bill Bulkeley" To: Se

Re: Shop made Z-axis

2014-08-17 Thread CURTIS GEORGE
Brandon I second the corian idea, I have use this material for a lot of different projects, It feels like stone, Solid and very stable, It can be worked with any carbide blade, It only comes in 1/2" thickneses but I can be glued together to form thicker parts, there are two down sides with Coria

Re: Shop made Z-axis

2014-08-17 Thread CURTIS GEORGE
Tim A quick release or slip nut would salve the thousand turns to get anywhere with that lead screw, get close to your mark and then screw it down to your desired depth. Just an idea? C.A.G. - Original Message - 1/2-10 tpi acme is very common here in the states. A tap will cost aroun