Comments on: A Homemade DRO for the 7x Mini-Lathe http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/ Plans, projects and how-to's for home machinists Sun, 05 Feb 2012 23:24:11 +0000 hourly 1 http://wordpress.org/?v= By: Ronald van Aalst http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/comment-page-1/#comment-32747 Ronald van Aalst Mon, 21 Nov 2011 21:34:30 +0000 http://www.machinistblog.com/?p=2070#comment-32747 another caliper takes care of the cross feed. this required drilling one of the caliper beaks and grinding off parts of both beaks. grinding was ok, but drilling was a nightmare. It also took me two M3 holes in the carriage. (the first hole was too close and jammed with the gib strip nuts, duh!) [img]http://i625.photobucket.com/albums/tt336/raalst/DSCN0448.jpg[/img] I'm still thinking about how to keep the end of the calipers from swivelling. I have a workaround (a bit of scrap between caliper and carriage), but I like something more sturdy. another caliper takes care of the cross feed.

this required drilling one of the caliper beaks and grinding off parts of both beaks.
grinding was ok, but drilling was a nightmare.

It also took me two M3 holes in the carriage.
(the first hole was too close and jammed with the gib strip nuts, duh!)

[img]http://i625.photobucket.com/albums/tt336/raalst/DSCN0448.jpg[/img]

I’m still thinking about how to keep the end of the calipers from swivelling.
I have a workaround (a bit of scrap between caliper and carriage),
but I like something more sturdy.

]]> By: Ronald van Aalst http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/comment-page-1/#comment-32719 Ronald van Aalst Mon, 21 Nov 2011 08:44:26 +0000 http://www.machinistblog.com/?p=2070#comment-32719 Nice idea. For longer travel I succeeded in applying a digital caliper without mutilating the lathe with the aid of a magnetic base and a small vise. The vise is magnetically held by the base, and the "tail" of the caliper is held in the vice. it is one-way, you have to push the caliper back by hand, but on the other hand it is easy to set up AND measures the combined actions of saddle and compound. picture here : http://i625.photobucket.com/albums/tt336/raalst/DSCN0445.jpg Nice idea.

For longer travel I succeeded in applying a digital caliper without mutilating the lathe
with the aid of a magnetic base and a small vise.
The vise is magnetically held by the base, and the “tail” of the caliper is held in the vice.

it is one-way, you have to push the caliper back by hand,
but on the other hand it is easy to set up AND
measures the combined actions of saddle and compound.

picture here : http://i625.photobucket.com/albums/tt336/raalst/DSCN0445.jpg

]]> By: Richard http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/comment-page-1/#comment-31957 Richard Mon, 07 Nov 2011 09:57:36 +0000 http://www.machinistblog.com/?p=2070#comment-31957 Hello Rob, This looks like a great idea. I was wondering if you have finalized the prototype and made plans for it to download? All the materials needed in your bill of work,minus the aluminum is available at your local Harbor Freight,including the rare earth magnets.I have a Central Machinery 7 x 12 that's just begging for an upgrade such as this. I was going to purchase the DRO 2 axis kit from LMS,however I do not like the idea that it hinders the swing travel of the compound rest. -Rick Hello Rob,
This looks like a great idea. I was wondering if you have finalized the prototype and made plans for it to download? All the materials needed in your bill of work,minus the aluminum is available at your local Harbor Freight,including the rare earth magnets.I have a Central Machinery 7 x 12 that’s just begging for an upgrade such as this. I was going to purchase the DRO 2 axis kit from LMS,however I do not like the idea that it hinders the swing travel of the compound rest.
-Rick

]]> By: tsaavik http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/comment-page-1/#comment-663 tsaavik Wed, 06 Jan 2010 22:20:22 +0000 http://www.machinistblog.com/?p=2070#comment-663 Since googlereader was requesting the images (instead of machinistblog.com) your htaccess worked and blocked them. Later when anonymous tried to access the site directly, their browser had the images cached already, so the browser displayed the cached images instead of re-downloading them from your site. You could add googlereader as a "trusted" domain to your htaccess code to fix this. OR, if you want to continue to block google i suggest appending a constantly updating timestamp to all your images. For example lathe.jpg?epochtime=1262816405 Since googlereader was requesting the images (instead of machinistblog.com) your htaccess worked and blocked them.

Later when anonymous tried to access the site directly, their browser had the images cached already, so the browser displayed the cached images instead of re-downloading them from your site.

You could add googlereader as a “trusted” domain to your htaccess code to fix this.

OR, if you want to continue to block google i suggest appending a constantly updating timestamp to all your images. For example lathe.jpg?epochtime=1262816405

]]> By: admin http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/comment-page-1/#comment-623 admin Tue, 29 Dec 2009 23:00:10 +0000 http://www.machinistblog.com/?p=2070#comment-623 The "I steal..." image is coming from MachinistBlog, but I don't know why you're seeing it. A few weeks ago I found that a shady website had hot-linked some of my images. So I did some research and found that I could <a href="http://altlab.com/htaccess_tutorial.html" rel="nofollow">modify my .htaccess file</a> so it would display a different image instead. Then I made a substitute that would give me some free publicity. It appears that the solution is either not fool-proof or I did something wrong. The offending web site is gone, so I'll remove the code so you can see the images. (Let me know if you're still having a problem) I'd appreciate it if anyone could tell me why this happened. The modification I made is suppose to be widely used. -- Rob The “I steal…” image is coming from MachinistBlog, but I don’t know why you’re seeing it. A few weeks ago I found that a shady website had hot-linked some of my images. So I did some research and found that I could modify my .htaccess file so it would display a different image instead. Then I made a substitute that would give me some free publicity. It appears that the solution is either not fool-proof or I did something wrong.

The offending web site is gone, so I’ll remove the code so you can see the images. (Let me know if you’re still having a problem)

I’d appreciate it if anyone could tell me why this happened. The modification I made is suppose to be widely used. — Rob

]]> By: Anonymous http://www.machinistblog.com/a-homemade-dro-for-the-7x-mini-lathe/comment-page-1/#comment-622 Anonymous Tue, 29 Dec 2009 19:37:00 +0000 http://www.machinistblog.com/?p=2070#comment-622 Is there a reason all the images say "I steal images from machinistblog.com"? They show up both on my Google reader, and on your site. Is there a reason all the images say “I steal images from machinistblog.com”? They show up both on my Google reader, and on your site.

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