Need Advice Turning a 3 1/2 " Mortise
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Need Advice Turning a 3 1/2 " Mortise
I am turning a 6"x6" wood cylinder between centers. I need to turn a 3 1/2" diameter x 1/2" deep mortise in one end. The mortise will need to have straight walls and a flat bottom. Due to the width of the headstock and tailstock I cannot get a turning chisel to go into the cylinder straight. I can only seem to get them to go in at an angle.
Is there any way of turning this mortise without using a lathe chuck on the other end? Any suggestions will be greatly appreciated.
Is there any way of turning this mortise without using a lathe chuck on the other end? Any suggestions will be greatly appreciated.
Re: Need Advice Turning a 3 1/2 " Mortise
You could use a face plate and a glue block
Ron Dyck
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10ER #23430, 10ER #84609, 10ER #94987,two SS A-34 jigsaws for 10ER.
1959 Mark 5 #356595 Greenie, SS Magna Jointer, SS planer, SS bandsaw, SS scroll saw (gray), DC3300,
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10ER #23430, 10ER #84609, 10ER #94987,two SS A-34 jigsaws for 10ER.
1959 Mark 5 #356595 Greenie, SS Magna Jointer, SS planer, SS bandsaw, SS scroll saw (gray), DC3300,
- edflorence
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Re: Need Advice Turning a 3 1/2 " Mortise
How long is the 6x6? Ron's idea is on the right track, but if the workpiece is more than a few inches long I think you will need some sort of steady rest on the tail end. Maybe instead of the lathe you could use a fly cutter in the drill press mode with the work piece vertical and clamped to the vertically positioned table. That would require chisel and router work to clean up after the drilling, but 1/2 inch isn't too deep, so it I think it could be done that way.
Ed
Idaho Panhandle
Mark 5 of various vintages, Mini with reversing motor, bs, dc3300, jointer, increaser, decreaser
Idaho Panhandle
Mark 5 of various vintages, Mini with reversing motor, bs, dc3300, jointer, increaser, decreaser
Re: Need Advice Turning a 3 1/2 " Mortise
Forstner bit???
Bill V
Bill V
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Re: Need Advice Turning a 3 1/2 " Mortise
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: Need Advice Turning a 3 1/2 " Mortise
Without actually doing this I can't see any issues with just turning it with centers then removing the center section left for the tail stock center any way you can.
This is what I'm picturing:
If you are short of room then you may want to get a tail stock extension like this:
Does that help?
Ed
This is what I'm picturing:
If you are short of room then you may want to get a tail stock extension like this:
Does that help?
Ed
{Knight of the Shopsmith} [Hero's don't wear capes, they wear dog tags]
Re: Need Advice Turning a 3 1/2 " Mortise
IF the 6" x 6" cylinder is mounted securely in a lathe chuck or a faceplate, then no tailstock is needed so plenty of room to get a chisel in to cut the tenon. Ron and Ed Florence already suggested this. However, if this isn't possible you can always get a slim tailstock live center and extension to do as Ed suggests. It may still be hard to get the angle to have clean tenon shoulders and you'll have to remove the tailstock at some point to finish the center of the tenon. Just my 1.5¢...
RF Guy
Mark V 520 (Bought New '98) | 4" jointer | 6" beltsander | 12" planer | bandsaw | router table | speed reducer | univ. tool rest
Porter Cable 12" Compound Miter Saw | Rikon 8" Low Speed Bench Grinder w/CBN wheels | Jessem Clear-Cut TS™ Stock Guides
Festool (Emerald): DF 500 Q | RO 150 FEQ | OF 1400 EQ | TS 55 REQ | CT 26 E
DC3300 | Shopvac w/ClearVue CV06 Mini Cyclone | JDS AirTech 2000 | Sundstrom PAPR | Dylos DC1100 Pro particulate monitor
Mark V 520 (Bought New '98) | 4" jointer | 6" beltsander | 12" planer | bandsaw | router table | speed reducer | univ. tool rest
Porter Cable 12" Compound Miter Saw | Rikon 8" Low Speed Bench Grinder w/CBN wheels | Jessem Clear-Cut TS™ Stock Guides
Festool (Emerald): DF 500 Q | RO 150 FEQ | OF 1400 EQ | TS 55 REQ | CT 26 E
DC3300 | Shopvac w/ClearVue CV06 Mini Cyclone | JDS AirTech 2000 | Sundstrom PAPR | Dylos DC1100 Pro particulate monitor
Re: Need Advice Turning a 3 1/2 " Mortise
Do keep in mind this is something that is done all the time when turning things like bowls. You often need to turn a place for the spigot of a lathe chuck to fit and while they might not be as large as this it still the same process. In fact you often need to make a dovetail cut like this which is beyound the straight cut ask for here.
Ed
Ed
{Knight of the Shopsmith} [Hero's don't wear capes, they wear dog tags]
Re: Need Advice Turning a 3 1/2 " Mortise
They're useful for so making so many other things like ... hockey puck holders?
Ed from Rhode Island
510 PowerPro Double Tilt:Greenie PowerPro Drill Press:500 Sanding Shorty w/Belt&Strip Sanders
Super Sawsmith 2000:Scroll Saw w/Stand:Joint-Matic:Power Station:Power Stand:Bandsaw:Joiner:Jigsaw
1961 Goldie:1960 Sawsmith RAS:10ER
510 PowerPro Double Tilt:Greenie PowerPro Drill Press:500 Sanding Shorty w/Belt&Strip Sanders
Super Sawsmith 2000:Scroll Saw w/Stand:Joint-Matic:Power Station:Power Stand:Bandsaw:Joiner:Jigsaw
1961 Goldie:1960 Sawsmith RAS:10ER
Re: Need Advice Turning a 3 1/2 " Mortise
I have a 3" in my shop and we have a few in the club shop of 3 1/4 inch and 3 1/8 inch. One of our members who used to make clocks donated them.
Bill V
try this site
https://www.mlcswoodworking.com/shopsit ... orsbit.htm
Bill V
try this site
https://www.mlcswoodworking.com/shopsit ... orsbit.htm