MWF FEED
23rd December 2017, 06:00 AM
Hi Guys,
Since it has been a bit quiet of late, Christmas preparations and all that. I thought that I would set to and make a marking out gauge.
I had all the bits and pieces in the surplus metal pile.
22-12-2017-001.JPG (http://metalworkforums.com/attachment.php?attachmentid=371419&d=1513963845) 22-12-2017-005.JPG (http://metalworkforums.com/attachment.php?attachmentid=371422&d=1513963853)
I didn't take any pictures of the offcut of 40 mm round bar before I had put it in the lathe four jaw, centred and drilled it 6.2 mm. The hole is 10 mm offset from centre. The chunk of steel between the chuck jaw is there to balance the offset weight. The piece is turned to leave a 13 mm spigot. I also lightly countersunk the hole to remove any sharp edges.
22-12-2017-006.JPG (http://metalworkforums.com/attachment.php?attachmentid=371423&d=1513963856) 22-12-2017-007.JPG (http://metalworkforums.com/attachment.php?attachmentid=371424&d=1513963859)
This is the finished piece. I drilled a 4.2 mm hole in the spigot and threaded it M5 going into the bore for a pinch thumb screw, before reaming the through hole 1/4" inch to suit the length of chromed steel rod. That clears any burrs from the drilling and threading that would foul the bar that goes through it.
22-12-2017-003.JPG (http://metalworkforums.com/attachment.php?attachmentid=371421&d=1513963850) 22-12-2017-002.JPG (http://metalworkforums.com/attachment.php?attachmentid=371420&d=1513963847)
I had a nice broken carbide drill shank with an 1/8" inch diameter shaft that I intend to sharpen to a point, to make a scriber. After drilling the end of the 1/4" rod with a 2.5 mm drill to a depth of 13 mm, I threaded it M3. I followed this by cross drilling with a 3.2 mm drill and reaming to 1/8" inch. This made the carbide drill shank a very good fit with the M3 screw holding it solidly.
22-12-2017-008.jpg (http://metalworkforums.com/attachment.php?attachmentid=371425&d=1513963862)
Apart from making the thumbscrew and sharpening the scriber to a point, this is the finished article. The chromed steel rod is 18" inches long ! I haven't decided what length to cut it down to yet.
Thanks Guys ! I won't be around over Christmas, so Greetings and good wishes to all.
Attached Images
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-005.JPG (http://metalworkforums.com/attachment.php?attachmentid=371422&d=1513963853) (180.9 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-006.JPG (http://metalworkforums.com/attachment.php?attachmentid=371423&d=1513963856) (173.9 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-007.JPG (http://metalworkforums.com/attachment.php?attachmentid=371424&d=1513963859) (132.2 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-008.jpg (http://metalworkforums.com/attachment.php?attachmentid=371425&d=1513963862) (92.8 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-003.JPG (http://metalworkforums.com/attachment.php?attachmentid=371421&d=1513963850) (164.5 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-002.JPG (http://metalworkforums.com/attachment.php?attachmentid=371420&d=1513963847) (131.0 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-001.JPG (http://metalworkforums.com/attachment.php?attachmentid=371419&d=1513963845) (166.8 KB)
Read the full thread at metalworkforums.com... (http://metalworkforums.com/showthread.php?t=201369&goto=newpost)
Since it has been a bit quiet of late, Christmas preparations and all that. I thought that I would set to and make a marking out gauge.
I had all the bits and pieces in the surplus metal pile.
22-12-2017-001.JPG (http://metalworkforums.com/attachment.php?attachmentid=371419&d=1513963845) 22-12-2017-005.JPG (http://metalworkforums.com/attachment.php?attachmentid=371422&d=1513963853)
I didn't take any pictures of the offcut of 40 mm round bar before I had put it in the lathe four jaw, centred and drilled it 6.2 mm. The hole is 10 mm offset from centre. The chunk of steel between the chuck jaw is there to balance the offset weight. The piece is turned to leave a 13 mm spigot. I also lightly countersunk the hole to remove any sharp edges.
22-12-2017-006.JPG (http://metalworkforums.com/attachment.php?attachmentid=371423&d=1513963856) 22-12-2017-007.JPG (http://metalworkforums.com/attachment.php?attachmentid=371424&d=1513963859)
This is the finished piece. I drilled a 4.2 mm hole in the spigot and threaded it M5 going into the bore for a pinch thumb screw, before reaming the through hole 1/4" inch to suit the length of chromed steel rod. That clears any burrs from the drilling and threading that would foul the bar that goes through it.
22-12-2017-003.JPG (http://metalworkforums.com/attachment.php?attachmentid=371421&d=1513963850) 22-12-2017-002.JPG (http://metalworkforums.com/attachment.php?attachmentid=371420&d=1513963847)
I had a nice broken carbide drill shank with an 1/8" inch diameter shaft that I intend to sharpen to a point, to make a scriber. After drilling the end of the 1/4" rod with a 2.5 mm drill to a depth of 13 mm, I threaded it M3. I followed this by cross drilling with a 3.2 mm drill and reaming to 1/8" inch. This made the carbide drill shank a very good fit with the M3 screw holding it solidly.
22-12-2017-008.jpg (http://metalworkforums.com/attachment.php?attachmentid=371425&d=1513963862)
Apart from making the thumbscrew and sharpening the scriber to a point, this is the finished article. The chromed steel rod is 18" inches long ! I haven't decided what length to cut it down to yet.
Thanks Guys ! I won't be around over Christmas, so Greetings and good wishes to all.
Attached Images
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-005.JPG (http://metalworkforums.com/attachment.php?attachmentid=371422&d=1513963853) (180.9 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-006.JPG (http://metalworkforums.com/attachment.php?attachmentid=371423&d=1513963856) (173.9 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-007.JPG (http://metalworkforums.com/attachment.php?attachmentid=371424&d=1513963859) (132.2 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-008.jpg (http://metalworkforums.com/attachment.php?attachmentid=371425&d=1513963862) (92.8 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-003.JPG (http://metalworkforums.com/attachment.php?attachmentid=371421&d=1513963850) (164.5 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-002.JPG (http://metalworkforums.com/attachment.php?attachmentid=371420&d=1513963847) (131.0 KB)
http://metalworkforums.com/images/attach/jpg.gif 22-12-2017-001.JPG (http://metalworkforums.com/attachment.php?attachmentid=371419&d=1513963845) (166.8 KB)
Read the full thread at metalworkforums.com... (http://metalworkforums.com/showthread.php?t=201369&goto=newpost)