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Hi, Well I'm not a physicist although I am an engineer of the electronic variety. My thinking is that the laser wavelength is around 600nm from memory and will readily detect edges of quarter wave.

John, You and Roy hit the nail on the head. I'm cutting an approximation of a 1.5mm metric thread...something I've never done before. I thought that engaging the half nuts at the same number on the

Hi Roy, Yeah, but once Vikki's commercial number from MM arrives I think she'll find new games to play. Vikki's had the fun of sussing out how far you can push a $1 laser and it's been an interesting

Hi Jim, I'd try keeping the half-nuts engaged and reversing up - as opposed to using the threading dial. If the problem persists you must have some sort of slippage (on keyed gears???). Are you doing

Small Parts has them: http://www.smallparts.com/products/descriptions/bsp.cfm Roy wrote: laser. idea liberty well

What thread pitch are you trying to cut? The threading dial only aligns for multiples of 1/2 tpi; if you're doing a metric approximation (with an SAE leadscrew) you'll have to keep the half-nuts

<kettletrigger@...> wrote: lathe, but it always went piece even though I thought http://i131.photobucket.com/albums/p312/kettletrigger/ThreadError1.gif cuts. I made no changes it for clearance then

If nothing is slipping, it may mean you have the gears set up for metric threads. How many tpi were you trying to cut? How many tpi did it actually cut, as measured with a thread gauge (no estimating

It's been a couple of years since I've done any screwcutting on my lathe, but it always went fine back then. Today I learned the hard lesson of running a test piece even though I thought it would work

Item# 140108076785 I just listed my little 7x12 Homier. If you need one take a look. Lots of pictures. Need money to finish my 8x14. Donny

THANK YOU TONY !!! I most always sit back and sift for useful info. and much can be learned in doing so. The topic on the copyrights was getting foolish and wasting space that could be used for

Patrice, I think Druid has put to words what I believe as well. As for the search engine on this list, it is lacking but it does as good as can be expected on a free for all site like this. I see the

OK guys, its time to put this topic to rest. No need for any more comments. I as a moderator dont have a problem with any kind of info put out on the net as long as its a benefit to all. Personally, I

It is not a problem to turn down barrel blanks. Some of the ones I purchase are a couple of inches in diameter for a .357 hole. They are oversize so the builder has the option of a bull barrel or

Vikki, Rather than trying to drill a pin hole in a thicker piece, glue some al. foil on BOTH sides of a thick washer. Mount a straight pin in your drill press (or mill) and bring it down on the

What a lot of hoo-ha about nothing, as the saying goes. 99.99% of the message on these boards really aren't worth saving, including this entire thread. Having a decent search interface, or an index,

Hi Patrice L., Good points and well-taken. I am pleased to hear that you removed the "copyright" from your site - however, as with the best of intentions, this generates another problem and a

G'day Patrice. Thanks for getting on top of the problems. I have no objection to your copyrighting the data base but not the content, that belongs to the writers. You need to protect yourself and the

Let me address what I can. 1) I will add a reference to the Yahoo group. Not sure why I did not do it but I see how that may be a good idea. 2) I removed the copyright at the bottom of these pages (a

hi all- the cnc 8x12/14 prototype's finished and working under power. we still need to familiarlize ourselves with the control software, but so far so good. we started turning some acetal/delrin rod