SOUTHBEND LATHE ACME THREAD CUTTING

When cutting Acme and similar deep,coarse,threads its common practice toset the compound parallel to the lathe bed and apply small side to side movements so the tool cuts one flank at a time. This considerably reduces the load on the tool and helps prevent chatter.
Threading Stop - Practical Machinist
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Videos of Southbend Lathe Acme Thread Cutting
Watch video24:40Southbend Compound Large Dial Conversion- Part 318K viewsDec 6, 2012YouTubeHalligan142Watch video3:09Thread cutting closeup.192K viewsApr 14, 2012YouTubemarkp0177Watch video10:46MACHINE SHOP TIPS #24 Acme Threading Part 1 tubalcain208K viewsJan 26, 2011YouTubemrpete222Watch video13:02MACHINE SHOP TIPS #25 Acme Threading Part 2 tubalcain120K viewsJan 26, 2011YouTubemrpete222Watch video11:29How to Cut a Fine Thread on a Lathe (Training Film)166K viewsSep 10, 2013YouTubeOpen Source Machine ToolsSee more videos of Southbend Lathe Acme Thread Cutting
Cutting internal Acme Thread - Practical Machinist
Jul 28, 2011because SB undercut those threads with a groove. At some point it's. all groove and no more thread. One solution is to hack off the end of the shaft, and silver solder a brand. new bit of stock in place. Cut the new shaft end to the correct length and. put your new knob threads at the end. 07-29-2011, 12:26 PM #14.Metric threading with 10k South BendJan 29, 2010Threading Stop - Practical MachinistJan 24, 2009Making a new Cross Slide Acme ScrewJan 24, 2008cutting acme threadsNov 21, 2006See more results
Threading On A Southbend Lathe - YouTube
Click to view on Bing2:33Mar 01, 2013Threading on a 6" Southbend lathe at the shop. Please watch in HD!Author: UnitCrane514Views: 15K
Cutting Internal ACME Threads on a Metal Lathe - YouTube
Click to view on Bing28:49Aug 14, 2015This is part two of a job for a Darra James Model 95 Table Saw where I make a pair of new ACME nuts through a piece of 1" round stock for the elevation and t..Author: Keith Rucker - VintageMachineryViews: 94K
Machining an Acme Thread (Training Video) - YouTube
Click to view on Bing14:10Sep 10, 2013A detailed explanation about how to machine an Acme thread on a metalworking lathe, from a U.S. World War 2-era training film. For more about the open source..Author: Open Source Machine ToolsViews: 99K
Cutting Right Hand External Acme Threads on the Metal
Click to view on Bing16:17Feb 12, 2018In the second part of this series of cutting Acme threads, we cut some external Acme threads on the metal lathe. The shaft is set up to turn on a center and..Author: Keith Rucker - VintageMachineryViews: 35K
Internal "ACME" thread using a lathe - The Home Machinist!
Dec 08, 2006The last tap is the tap that actually threads to size, the other 1 or 2 just removes metal to make it easier to tap, unless its a once through tap then it cuts a pass with regular 60 degree threads and the last part of the tap finishes to ACME. Our taps go from 1/4" up to 1.5". A set of ACME taps in not cheap.
Cutting ACME threads - The Home Machinist!
Mar 25, 2003I thought about making a 3x long nut with correct internal thread depth but cut with a 55 degree angle instead of 60, and slotting it 2/3 of the way lengthwise, then set a clamp ring or a side-clamp using a setscrew on it to close down on the screw thread. this might be too much friction but that seems to be the case with most all of the zero-lash nuts. the difference in
How to make my South Bend lathe cut metric threads?
Mar 05, 2014Anyone have success making a South Bend 10K lathe cut metric threads? Thanks--Mike. Tags: None. martik. Senior Member. Join Date: Mar 2011; Posts: 303; Share Tweet #2. 03-05-2014, 07:31 PM. You can get very close by just changing the stud gear, ie; a 26 tooth stud will cut 11mm in position B4 of your QCGB. Easy to cut the gears from delrin
How Cut a Female Acme Thread? - The Home Machinist!
Jun 06, 2008I haven't seen it mentioned, so I mention it. The ACME thread has an included angle of 29 degrees. meaning that you must set your compound at 14.5 degrees for the proper thread form. Cutting the smaller internal threads can be done, but it requires patience and time. A digital readout is nice, since you wont be able to see much of what is going on.
Machining Metric Threads on the South Bend lathe -- For Two
How to add metric threading capability to an antique South Bend lathe for a total cost of - Could it really be two dollars? Let's find out. Part 2 of 2How
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