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Old 10-10-2020, 06:43 PM
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I managed to strip the threads on the two M8 screws that hold the compound to the cross slide on my lathe. After much handwringing and many skull cramps, I took on the job of removing them. Turns out, it is easier than I thought, and much easier on mine than Kieth Fenner's.

Now to hodge up a tee bolt to replace the original. I'm thinking a simple weld buildup of common hardware and a little machine work. Pays to have more than one lathe

Not real impressed with ball oilers. By my count, there are 6 8mm OD ball oilers that should be replaced. Pretty sad, when there are only a dozen on the whole machine. Any suggestions on a Canadian source?
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Design to 0.001", measure to 1/32", cut with an axe, grind to fit..
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Old 10-10-2020, 08:17 PM
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No need for welding with another lathe around, just a little grinding after turning and threading
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Old 10-10-2020, 08:54 PM
Lew Hartswick Lew Hartswick is offline
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That cross slide looks suspiciously like the 8 we have in the metal shop at Valley High. (my memory is on a strike at the moment) . :-)
...lew...
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Old 10-10-2020, 09:05 PM
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Cam, they are called Gits oilers.
Available in Edmonton
Motion Industries has them as well as Guillevin International, the hydraulics dudes.
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Old 10-10-2020, 09:22 PM
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Quote:
Originally Posted by digr View Post
No need for welding with another lathe around, just a little grinding after turning and threading
Neither the Barnes #5 nor the Taig are set up for single point threading, and I don't have a tap and die for the closest SAE thread.
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Design to 0.001", measure to 1/32", cut with an axe, grind to fit..

Last edited by camdigger; 10-10-2020 at 09:31 PM.
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Old 10-10-2020, 09:23 PM
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Cam, they are called Gits oilers.
Available in Edmonton
Motion Industries has them as well as Guillevin International, the hydraulics dudes.
Thanks Gerry! There is a motion industries in Red Deer...
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Design to 0.001", measure to 1/32", cut with an axe, grind to fit..

Last edited by camdigger; 10-10-2020 at 10:07 PM.
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Old 10-26-2020, 11:56 AM
threepiece threepiece is offline
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This thread reminds me of a mishap that occurred to me a number of years ago.

Using a Clausing Metosa lathe I was making cuts on a rather large round bar. The piece was about 10” diameter over a foot long and heavy. The machine wasn’t complaining as I added a bit to the depth of cut on each successive pass..........until it exploded.

The two m8 screws securing the cross slide sheared off. The first sound was that like a medium size gun being fired. The second was a combination of the large round landing on the bed of the lathe and the cross slide hitting the floor five feet behind me.
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Old 10-26-2020, 06:39 PM
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Quote:
Originally Posted by threepiece View Post
This thread reminds me of a mishap that occurred to me a number of years ago.

Using a Clausing Metosa lathe I was making cuts on a rather large round bar. The piece was about 10” diameter over a foot long and heavy. The machine wasn’t complaining as I added a bit to the depth of cut on each successive pass..........until it exploded.

The two m8 screws securing the cross slide sheared off. The first sound was that like a medium size gun being fired. The second was a combination of the large round landing on the bed of the lathe and the cross slide hitting the floor five feet behind me.
Nothing so dramatic here. Just your every day ROC manufacturing practices. The M8 bolts were machined out of soft steel and the nuts used in assembly were a thin low profile nut that only engaged 2 1/2 threads. The bolt threads stripped off making adjusting and setting the compound an issue.

I have lashed up a repair using standard hardware and flanged nuts. Time will tell how good the repair is....
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Old 10-26-2020, 08:35 PM
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Quote:
Originally Posted by camdigger View Post
Nothing so dramatic here. Just your every day ROC manufacturing practices. The M8 bolts were machined out of soft steel and the nuts used in assembly were a thin low profile nut that only engaged 2 1/2 threads. The bolt threads stripped off making adjusting and setting the compound an issue.

I have lashed up a repair using standard hardware and flanged nuts. Time will tell how good the repair is....
Even though they use sheetmetal nuts there is room for a thicker nut.
I did the same as you, to change the bolthears from a15mm wrench to 14mm(9/16")
They will work just fine.
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Old 10-29-2020, 04:58 PM
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Just to update a little. The first image is one of the stripped bolts. There is not enough thread left for a thicker nut, nor a washer under the original nut. Explains the need for new bolts.

I tried both the local distributors for Gits oilers. Still waiting for a reply from the hydraulic dudes. Motion Industries came back with a minimum order of 100$. They wanted me to buy their whole stock of 8 mm oilers.

I tried both local to me outlets of the original vendor of the lathe. Modern Tool Edmonton is still checking inventory after 10 days. Modern Tool Calgary has stock in all 3 sizes this lathe needs 6,8, and 10 mm. They were glad to sell me the 8 mm ones I needed and dropped them in the mail sans shipping charge. Post Mark on the letter size envelope says $0.89 in postage on a $32 sale. The new oilers supplied have a flanged top and are made of steel compared to the original smooth shouldered brass oilers.

Turns out, the old ones can be popped out by driving a screw into the centre hole and using a nail puller renovation bar to pull the old oiler out. The new oilers were simply driven in using a brass punch.
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