Hey, at least I assumed it was a typo and not a senior moment ;-)) Rick...
28637
Goran Hosinsky
hosinsky
May 10, 2011 10:11 am
I have not tried it yet but the freeware program Centrecam + a webcam on a Morse taper mount sounds to me to be a practical solution. I use a green laser and a...
28638
Malcolm Parker-Lisberg
mparkerlisberg
May 10, 2011 10:18 am
Rick I think it was the latter, because even the correction was wrong, It should have read "I missed out the ' by' between the word distance and using." or my...
28639
Malcolm Parker-Lisberg
mparkerlisberg
May 10, 2011 10:23 am
Goran You really need a micro positioner on the camera mounting so that you can ensure the camera is co-axial with the spindle axis. Malcolm I don't suffer...
28640
Goran Hosinsky
hosinsky
May 10, 2011 10:34 am
I think the program allows moving the center of the crosshairs to adjust for any off center mounting. Goran...
28641
Malcolm Parker-Lisberg
mparkerlisberg
May 10, 2011 10:45 am
Goran As the displacement in X and Y will depend on the angle of an off centre camera relative to the angle of spindle rotation, better accuracy in positioning...
28642
Rick Sparber
rgsparber
May 10, 2011 12:50 pm
Don't forget that the resolution of the camera will limit your accuracy. Rick...
28643
Malcolm Parker-Lisberg
mparkerlisberg
May 10, 2011 1:13 pm
Rick Adding a supplementary lens will increase the magnification and hence possible resolution. Try a lens from a pair of reading glasses in front of your...
28644
Rick Sparber
rgsparber
May 10, 2011 1:17 pm
Makes sense. Has anyone tried this on an optical center? Rick...
28645
Paul Alciatore
epa_iii
May 10, 2011 4:50 pm
If you use mirror(s), you will need high quality ones because small optical defects will cause a variation in the angle of reflection. You need the same angle...
28646
Malcolm Parker-Lisberg
mparkerlisberg
May 10, 2011 5:47 pm
Paul Small imperfections in the mirror surface don't matter, because you are using it in fiducial mode, ie. returning to the same position. If you use a piece...
28647
Paul Alciatore
epa_iii
May 11, 2011 2:10 am
Malcolm, If the mirror has slight deviations from flat, then you could set up a reference point (line actually) at one vertical position on it and then wind up...
28648
Malcolm Parker-Lisberg
mparkerlisberg
May 11, 2011 10:54 am
Paul I beg to differ, if you use a line laser or a diffracting line generator the mirror imperfections will make the image generated from the reflecting...
28649
cuttysark71
May 11, 2011 12:31 pm
This has been a great thread, so here's my two cents. One thing to remember, in order to get good reflected spot and thus higher accuracy, you will have to...
28650
Rick Sparber
rgsparber
May 11, 2011 1:08 pm
This thread has focused <pun> on one solution but there are many more. IMHO, they break down into two categories - procedural and mechanical. Procedural - can...
28651
curt wuollet
curtwuollet
May 11, 2011 5:26 pm
Yes, I find that screw machine drills and collets make life much easier than changing to the much longer drill chuck and jobber length drills. Especially since...
28652
rexarino
May 11, 2011 5:49 pm
So one need only build a drawbar with a vertical laser above the nut! Seems like a good project for publication in HSM... Rex On Wed, May 11, 2011 at 10:21...
28653
Paul Alciatore
epa_iii
May 11, 2011 7:07 pm
Malcolm, A regards the use of chrome plated copper tube, you are obviously willing to be satisfied by less accuracy than I would be. That's you and that's me....
28654
Malcolm Parker-Lisberg
mparkerlisberg
May 11, 2011 8:00 pm
Paul You are still missing the point. If you are using a fiducial system, you are only using one small area of the mirror surface and returning the beam to the...
28655
calvin
moosebaker...
May 11, 2011 10:13 pm
Hello Just wondering if anyone has ever considered mounting a rifle scope to the side of the head, to sight a virticle line as far away as possible? just a...
28656
Paul Alciatore
epa_iii
May 12, 2011 12:39 am
Malcolm, From Wikipedia, "In imaging technology, a fiduciary marker or fiducial is an object used in the field of view of an imaging system which appears in...
28657
Paul Alciatore
epa_iii
May 12, 2011 12:44 am
I think that is a far better idea than any of the laser schemes. But it is also more costly as rifle scopes are generally more expensive than lasers. You...
28658
Malcolm Parker-Lisberg
mparkerlisberg
May 12, 2011 11:07 am
Paul Never had much faith in Wikipedia material, for a better definition of Fiducial see: <http://dictionary.reference.com/browse/fiducial> ...
28659
Malcolm Parker-Lisberg
mparkerlisberg
May 12, 2011 11:13 am
Paul A cheap video camera mounted on the telescope would solve the viewing problem and again provide a fiducial system. Maybe an old ex-government gun sight...
28660
Paul Alciatore
epa_iii
May 12, 2011 5:44 pm
Malcolm, I thought of that, but decided to keep it simple. Paul A. ... Malcolm, I thought of that, but decided to keep it simple. Paul A. At 06:13 AM...
28661
Malcolm Parker-Lisberg
mparkerlisberg
May 12, 2011 6:48 pm
John My other though for producing a telescope was to add a Barlow lens (bi-concave lens) to an old film camera telephoto lens, dirt cheap now. You can get...
28662
Paul Alciatore
epa_iii
May 13, 2011 1:38 am
A Barlow lens is essentially the rear half of a telephoto lens. It is a negative lens and by mounting it somewhat behind a positive lens it effectively...
28663
John
jhd5701
May 23, 2011 12:28 pm
I am getting ready to move up from my x2 to a larger mill. What are your suggestions? MSC has a Rong Fu with DRO and power feed for 2500 dollars. Any better...
28664
ED BAUD
ed_baud
May 23, 2011 1:37 pm
John I Think ENCO has the same mill free freight Ed in Florida ________________________________ From: John <John5701@...> To: mill_drill@yahoogroups.com ...
28665
Bill Stietenroth
k5zty
May 23, 2011 2:07 pm
Get the R8 spindle. Much easier too find new and used mill tooling in R8. Bill in Houston ... From: "John" <John5701@...> To: mill_drill@yahoogroups.com ...
