Porper Vs Hightower

[Agent17]

Why would I have to demand that Don checks and verifies the headstock and tailstock alignment first? Wouldn't he do that on all sales as a matter of Q.C. ??? Is that a common problem? Or a one time thing?
thanks, Bill

Yes, you would expect so.

I have no idea if it is a common problem. I commented because it appears madman has a similar issue.

But knowing my luck, its just that - bad luck.

I am just saying from my experience, it is something that should be right from the start. So make sure it is.

I'm making people aware of my issue so they can avoid it in the future.

Don has been fine and helpful about all this, and I have no complaints on customer service, but Porper are in the lathe business. The tailstock is non adjustable, so it goes without saying that the tailstock MUST line up from day one or you will never get accurate enough results.

 

[cueman]

Michael Webb;3480282]
I really hope this info helps with both machines. Joe Porper and Chris Hightower are equally great guys, Stubborn as the day is long in believing what they offer, if they didn't, they wouldn't sell them.

Me and Joe stubborn? Where did you ever get that idea? :rotflmao1: :rotflmao:

 

[JerseyBill]

bore chuck

At the moment I am to sleepy to get into details but I will say that if a chuck is still .003 out at the same opening after having bored it you have done something wrong. After boring the chuck It should run dead nuts to the play in the bearings which is probably in the .00001 range.

Dick

Very possible that I 've done something wrong...I did inquire, and I think I know how , but maybe I screwed up?? it's possible....I thought I followed instructions?? I'm going to go through the whole process again and see if it comes out different.
thanks,

 

[whammo57]

Let me add 2 cents.

I always check tail stock alignment when cutting a straight 30 in coring dowel. I take a nice slow thin cut and then measure both ends of the dowel. If the tail stock end is smaller, the tail stock is too close to the cutter. If the tail stock end is larger, the tailstock is too far away from the cutter.

I put a dial indicator on the side of the tail stock and move it the appropriate amount to get the ends to cut as close to the same size as possible. I usually can get it within a few thou.

As for chuck runout or wobble, Number the holes that you use to put the bar in to tighten the chuck. Put your dead center in the chuck. Keep loosening and tightening the chuck using the 3 different holes in the chuck until you find one that consistantly gives the truest spin on the dead center.

I found one hole on mine that always chucks up with in 1 thou. The other 2 holes do not.

Maybe it's just me but it is worth a try.

Kim