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Apron refurb measurements

 

Group,
Before I head down maybe not too deep of a rabbit hole, has anyone seen detailed dimensions for the location of the hole for the handwheel shaft in the various South Bend aprons? ?I’ve got wobbly handwheel shafts on my 10k and 14.5”. ?I’ve measured the gears in the 10k and have a center-to-center distance calculated for one pair, but I need the vertical distance down from the rack or bed. ?That distance will be dependent on how much wear there is on the saddle and ways on any given lathe, but I should be able to nail down the numbers by getting bed and rack measurements in headstock or tailstock areas where there’s no wear.

Seems like many of the online accounts of those that have bored and bushed the shaft holes have been off just enough to have the gears bind up a bit when everything is reassembled. ?I also plan to nail down the vertical dimension for the lead screw axis as long as I’m in measurement mode! ?Please point me in the right direction if you know where to find this out from someone’s previous travel down this path.?

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736


Sent from for iOS

--
-George M.
 

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??? Have ya asked over on the Practical Machinist forum ? I know some guys there have posted about this project in the past .

animal

On 9/17/24 4:31 PM, George Meinschein via groups.io wrote:

Group,
Before I head down maybe not too deep of a rabbit hole, has anyone seen detailed dimensions for the location of the hole for the handwheel shaft in the various South Bend aprons? ?I’ve got wobbly handwheel shafts on my 10k and 14.5”. ?I’ve measured the gears in the 10k and have a center-to-center distance calculated for one pair, but I need the vertical distance down from the rack or bed. ?That distance will be dependent on how much wear there is on the saddle and ways on any given lathe, but I should be able to nail down the numbers by getting bed and rack measurements in headstock or tailstock areas where there’s no wear.

Seems like many of the online accounts of those that have bored and bushed the shaft holes have been off just enough to have the gears bind up a bit when everything is reassembled. ?I also plan to nail down the vertical dimension for the lead screw axis as long as I’m in measurement mode! ?Please point me in the right direction if you know where to find this out from someone’s previous travel down this path.?

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736


Sent from for iOS

--
-George M.

 

I haven't asked there. Seems like most of the posts on topic there involve a near miss on locating the bored holes properly.? I could be wrong, but that was my takeaway after checking there and on hobby machinist before posting here.

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736

Sent from Proton Mail Android



-------- Original Message --------
On 9/17/24 10:24 PM, mike allen wrote:

??? Have ya asked over on the Practical Machinist forum ? I know some guys there have posted about this project in the past .

animal

On 9/17/24 4:31 PM, George Meinschein via groups.io wrote:
Group,
Before I head down maybe not too deep of a rabbit hole, has anyone seen detailed dimensions for the location of the hole for the handwheel shaft in the various South Bend aprons? ?I’ve got wobbly handwheel shafts on my 10k and 14.5”. ?I’ve measured the gears in the 10k and have a center-to-center distance calculated for one pair, but I need the vertical distance down from the rack or bed. ?That distance will be dependent on how much wear there is on the saddle and ways on any given lathe, but I should be able to nail down the numbers by getting bed and rack measurements in headstock or tailstock areas where there’s no wear.

Seems like many of the online accounts of those that have bored and bushed the shaft holes have been off just enough to have the gears bind up a bit when everything is reassembled. ?I also plan to nail down the vertical dimension for the lead screw axis as long as I’m in measurement mode! ?Please point me in the right direction if you know where to find this out from someone’s previous travel down this path.?

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736


Sent from for iOS

--
-George M.

--
-George M.
 

George?
There is a member or i may say there was That worked for south bend lathe he had a lot of parts. I am sure he could be of help to you. I don't know his name or group profile. I would ask around. There are other south bend lathe groups?

GP


On Tuesday, September 17, 2024 at 10:31:46 PM EDT, George Meinschein via groups.io <gmeinschein@...> wrote:


I haven't asked there. Seems like most of the posts on topic there involve a near miss on locating the bored holes properly.? I could be wrong, but that was my takeaway after checking there and on hobby machinist before posting here.

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736

Sent from Proton Mail Android



-------- Original Message --------
On 9/17/24 10:24 PM, mike allen wrote:

??? Have ya asked over on the Practical Machinist forum ? I know some guys there have posted about this project in the past .

animal

On 9/17/24 4:31 PM, George Meinschein via groups.io wrote:
Group,
Before I head down maybe not too deep of a rabbit hole, has anyone seen detailed dimensions for the location of the hole for the handwheel shaft in the various South Bend aprons? ?I’ve got wobbly handwheel shafts on my 10k and 14.5”. ?I’ve measured the gears in the 10k and have a center-to-center distance calculated for one pair, but I need the vertical distance down from the rack or bed. ?That distance will be dependent on how much wear there is on the saddle and ways on any given lathe, but I should be able to nail down the numbers by getting bed and rack measurements in headstock or tailstock areas where there’s no wear.

Seems like many of the online accounts of those that have bored and bushed the shaft holes have been off just enough to have the gears bind up a bit when everything is reassembled. ?I also plan to nail down the vertical dimension for the lead screw axis as long as I’m in measurement mode! ?Please point me in the right direction if you know where to find this out from someone’s previous travel down this path.?

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736


Sent from for iOS

--
-George M.

--
-George M.

 


On Tue, Sep 17, 2024 at 10:09?PM Guenther Paul via <paulguenter=[email protected]> wrote:
George?
There is a member or i may say there was That worked for south bend lathe he had a lot of parts. I am sure he could be of help to you. I don't know his name or group profile. I would ask around. There are other south bend lathe groups?

GP


On Tuesday, September 17, 2024 at 10:31:46 PM EDT, George Meinschein via <gmeinschein=[email protected]> wrote:


I haven't asked there. Seems like most of the posts on topic there involve a near miss on locating the bored holes properly.? I could be wrong, but that was my takeaway after checking there and on hobby machinist before posting here.

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736

Sent from Proton Mail Android



-------- Original Message --------
On 9/17/24 10:24 PM, mike allen wrote:

??? Have ya asked over on the Practical Machinist forum ? I know some guys there have posted about this project in the past .

animal

On 9/17/24 4:31 PM, George Meinschein via wrote:
Group,
Before I head down maybe not too deep of a rabbit hole, has anyone seen detailed dimensions for the location of the hole for the handwheel shaft in the various South Bend aprons?? I’ve got wobbly handwheel shafts on my 10k and 14.5”. ?I’ve measured the gears in the 10k and have a center-to-center distance calculated for one pair, but I need the vertical distance down from the rack or bed.? That distance will be dependent on how much wear there is on the saddle and ways on any given lathe, but I should be able to nail down the numbers by getting bed and rack measurements in headstock or tailstock areas where there’s no wear.

Seems like many of the online accounts of those that have bored and bushed the shaft holes have been off just enough to have the gears bind up a bit when everything is reassembled.? I also plan to nail down the vertical dimension for the lead screw axis as long as I’m in measurement mode! ?Please point me in the right direction if you know where to find this out from someone’s previous travel down this path.?

Thanks,
George H. Meinschein, P.E.
Firearm and Ballistics Engineering LLC
150 Brittany Drive
Freehold, NJ 07728
gmeinschein@...
Cell#: 732-580-1736


Sent from for iOS

--
-George M.

--
-George M.

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