What bowl size determines whether I need a full-size lathe instead of a midi?

The practical threshold is 12 inches. Midi lathes swing 12 to 12.5 inches, which means your bowl blank at the rough stage needs to be under that dimension including any out-of-round variation. If your target finished bowl is 10 inches, a midi covers it with margin. If you regularly want 14-inch or larger bowls, a full-size lathe with at least 16-inch swing is the right class.

Can you do serious spindle turning on a midi lathe?

Yes, with a between-centers limit. The best midi lathes offer 20 to 21 inches between centers. A standard chair rung at 17 inches fits comfortably. Table legs at 28 to 30 inches do not. Furniture turners who regularly work with longer spindles need a full-size lathe with 36 to 42 inches between centers.

What does requiring 220 volts mean in practice for a full-size lathe?

You need a dedicated 220-volt circuit run from your electrical panel to the lathe location. In a house with a modern panel, this typically costs $200 to $500 in electrical work depending on distance and local labor rates. In a garage with existing 220-volt outlets for a welder or air compressor, you may already have what you need. This is a real setup cost that does not apply to midi lathes, which plug into standard 115-volt outlets.

Which midi lathes are worth buying?

Three machines dominate the current midi class. The Jet JWL-1221VS at roughly $990 offers continuous variable speed and 121 lbs of cast iron. The Rikon 70-220VSR at roughly $700 offers variable speed at a lower entry price. The Laguna Revo 1216 at roughly $850 swings 16 inches rather than 12, bridging the two classes in capacity. The WEN 3424T at $369 is the value entry but uses fixed belt speeds rather than variable speed.

Can you start with a midi lathe and upgrade to full-size later without losing your accessory investment?

Mostly yes, but the chuck situation matters. Midi lathes use a 1-inch by 8-TPI spindle thread. Full-size lathes use a 1-1/4-inch by 8-TPI thread. A chuck bought for a midi lathe needs a different insert to fit a full-size machine. Most major chuck makers sell inserts for both thread sizes, so you buy a new insert rather than a new chuck body. Turning tools, gouges, and hand tools all transfer directly with no modification.

Midi Lathe vs Full-Size Lathe: Which Should You Buy?

Midi lathes run on 115 volts, weigh under 140 lbs, swing 12 inches, and cost $800 to $1,200. Full-size floor lathes require 220 volts, weigh 400-plus pounds, swing 16 to 22 inches, and cost $2,500 to $6,000. The fork is the bowl size you turn regularly: if that’s under 12 inches, a midi covers it.

That answer is more complete than it sounds. Most first-time buyers choosing between these classes have not yet turned a bowl, which means they do not yet know how large their work will be. This guide works through the decision factors so you can choose before you have that experience.

The class comparison

Factor	Midi Lathe	Full-Size Floor Lathe
Swing	12 to 16 in	16 to 22 in
Between centers	18 to 21 in	36 to 42 in
Voltage	115V	220V
Weight	70 to 140 lbs	400 to 726 lbs
Price range	$370 to $1,200	$2,500 to $6,000
Footprint	Bench-top	Floor-standing
Setup	Plug in and go	Requires 220V circuit

The decision usually comes down to three factors: bowl size, shop electrical setup, and budget. Each deserves more detail than a table cell provides.

Bowl size

Twelve inches is the swing limit on most midi lathes. The Jet JWL-1221VS has a 12.5-inch swing; the Rikon 70-220VSR has 12 inches. A bowl blank that measures 11.5 inches across fits with a half-inch of clearance on each side. An out-of-round blank at 12 inches may not clear without some preliminary shaping on a bandsaw first.

In practical terms, a midi lathe produces bowls up to about 10 to 11 inches finished diameter reliably. Pushing to 12 inches requires a well-prepared blank.

Full-size lathes open the range. The Powermatic 3520C has a 20-inch swing. The Grizzly G0766 has 22 inches. Turners making serving bowls, salad bowls, and decorative vessels at 14 to 18 inches need that capacity.

The exception in the midi class is the Laguna Revo 1216. At 16-inch swing, it sits between the midi and full-size segments in capacity while still running on 115 volts. If your target is 14-inch bowls but you want to avoid the 220-volt setup, the Revo 1216 is the machine to look at first.

A woodturner at a lathe in a workshop, shaping a piece on the spindle with hand tools — The relationship between swing and finished bowl diameter is the most practical decision point in choosing a size class. Credit: Bertrand via Wikimedia Commons (CC BY 2.0).

Electrical requirements

Midi lathes plug into a standard 115-volt household outlet. You put the lathe on the bench, plug it in, and turn. No electrician required.

Full-size floor lathes run on 220 volts and draw 10 to 20 amps depending on the motor. You need a dedicated 220-volt circuit. In most North American homes and garages, running a new 220-volt circuit costs $200 to $500 in electrical work. If your shop already has 220-volt service from an existing welder, compressor, or electric dryer circuit nearby, the cost may be negligible. If not, it is a real upfront cost to budget alongside the machine price.

The Jet JWL-1840EVS at roughly $2,500 is a useful reference point here. It is a full-size lathe by swing (18 inches) but can be configured for 115 volts at reduced power output. That option reduces the electrical barrier for buyers entering the full-size class without existing 220-volt service.

Spindle turning and between-centers capacity

Bowl turning is the headline use case for this comparison, but spindle turning is where the between-centers gap matters most.

Midi lathes typically offer 18 to 21 inches between centers. The Jet JWL-1221VS has 20.5 inches; the Rikon 70-220VSR has 20 inches. That range covers chair rungs, short decorative spindles, and legs up to about 17 inches of usable turning length.

Standard furniture legs run from 17 to 29 inches. Table legs at 28 inches require a full-size lathe. Full-size machines with 36 to 42 inches between centers handle that range without compromise. The Grizzly G0766’s 42-inch capacity is the longest in the production full-size segment.

A woodworking workshop with a lathe in the foreground and tools organized on the wall in the background — A full-size floor lathe anchors a different kind of shop than a midi bench lathe. The footprint, mass, and electrical requirements all scale with the machine. Credit: William Warby via Unsplash (Unsplash License).

Weight and stability

Midi lathes weigh between 70 and 140 lbs. The WEN 3424T is 70 lbs; the Jet JWL-1221VS is 121 lbs. At the lighter end, the machine vibrates more at speed. Turners mounting large, unbalanced bowl blanks on a 70-lb lathe often add sandbags to the stand or bolt the machine to a heavy workbench.

Full-size floor lathes weigh 400 to 726 lbs. The Powermatic 3520C is 726 lbs. At that mass, vibration from out-of-round blanks largely disappears into the weight of the machine. The lathe stays in place.

This matters for both safety and cut quality. A vibrating lathe makes precise cuts harder and walks across the shop if not anchored. Mass is the simplest solution to both problems, and it is part of what you are paying for in the full-size class.

Current machines in each class

Midi class (12 to 16-inch swing):

WEN 3424T at $369: 5-speed belt, 12-inch swing, 18-inch centers. The value entry.
Rikon 70-220VSR at ~$700: variable speed, 12-inch swing, 20-inch centers.
Laguna Revo 1216 at ~$850: variable speed, 16-inch swing, 115V. Bridges the two classes.
Jet JWL-1221VS at ~$990: variable speed, 12.5-inch swing, 20.5-inch centers, 121 lbs.

Full-size class (16 to 22-inch swing):

Jet JWL-1840EVS at ~$2,500: 18-inch swing, variable speed, 115V option.
Powermatic 3520C at $5,999: 20-inch swing, sliding headstock, 726 lbs, 5-year warranty.
Grizzly G0766 at ~$4,000: 22-inch swing, 3 HP VFD, 42-inch centers, fixed headstock.

Wood shavings on the floor of a turning shop, evidence of a recent session at the lathe — Every size class produces shavings. The difference is which project sizes feel natural rather than crowded. Credit: Puddin Tain via Flickr (CC BY-SA 2.0).

The upgrade path

Most turners start with a midi and move to a full-size lathe if their work outgrows it. The upgrade has a few friction points worth knowing before you commit.

Turning tools transfer directly. A bowl gouge, spindle gouge, or skew chisel works on any lathe in any size class. There is no tool investment to repeat.

Chucks need a different insert. Midi lathes use a 1-inch by 8-TPI spindle thread. Full-size lathes use a 1-1/4-inch by 8-TPI thread. A Nova G3 or Oneway Talon bought for a midi lathe moves to a full-size lathe with a new insert, typically $30 to $50. You are not replacing the chuck body, just the threaded insert.

Face plates and threaded accessories are thread-specific. If you accumulate several face plates on a midi lathe, those need replacements at the larger thread standard. It is not a large cost but it is real.

The direct answer

Start with a midi if: you are new to turning, your target bowls are under 12 inches, you do not have 220-volt service in your shop, and your budget is under $1,500.

Start with a full-size lathe if: you know you want bowls over 14 inches, you already have 220-volt service, and your budget reaches $2,500 or more.

A wood lathe set up for turning — The category fork decides what swing and capacity will let you make; size for the projects in your head. Credit: Hubsing via Wikimedia Commons. Public domain.

For the specific comparison between the two strongest value options in the midi class, the Jet JWL-1221VS vs Rikon 70-220VSR comparison covers the decision in detail and is a useful next read if the midi class fits your work.