Thread: Woodfast 900 Manual and Head stock spindle size

I found this with an online search: Dead Link Removed

To find diameter use a caliper on tops of the thread. No caliper, adjustable wrench & measure with inch or metric ruler. To get threads per inch lay ruler on threads to get how many thread tops per inch or half inch or with mm ruler how the thread tops fall on the scale.

See: Determining Your Lathe Spindle Thread to find the correct NOVA insert adapter - NOVA Woodfast wood lathe headstock thread identity

And: old woodfast wood lathe spindle threads - Google Search

Paul, thanks for the information. Also got an email response from Alexander Muhlholzl which was really helpful.

The first link you posted did not work but that is ok.

Cheers, Mike

Originally Posted by micmac.mcfadden

Hi, I am new to turning and have bought a second hand Woodfast 900.

I need to by a chuck for it am trying to workout what insert I need for the chuck.

I have a friend who has a Woodfast 908 and his head stock spindle is larger than mine (i.e., my faceplate will not screw onto his spindle).

Is anyone able to help me with what head stock spindle size I have and if I need to take measurements, what do I measure etc?

Thanks, Mike

If the thread is not 30mm x 3.5mm pitch, which became the default on later Woodfast models, then it is probably 1"x10 TPI. The exception to that was lathes for export and they had all manner of thread sizes.

Time to get the callipers out.

Neil, thanks for your response. Yep did the measurements and thanks to some guidance from others on this thread, I have ordered some bits from Vicmarc and hope to be turning a bowl by the weekend.

Cheers, Mike

NOVA Link:

Determining Your Lathe Spindle Thread to find the correct NOVA insert adapter

Determining Your Lathe Spindle Thread to find the correct NOVA insert adapter

1. Refer to the insert/adaptor chart (below) to see if your lathe is listed.
If listed make a note of the SKU:______ (example IDNS, IENS, etc)
2. If not listed, look in your manual or sales literature to find the thread size.
Make a note of these:
Machine make:
Machine model thread size (if known):
Inboard thread (LH – left hand or RH right hand or both:
(Look at our insert/adaptor chart below to find your size)
3. If you don’t have a manual, contact your supplier to get a copy of your manual and find out your spindle size. If they don’t have the info you can call your manufacturer. (Then look at our insert/adaptor chart below to find your size).
4. If you have reliable information for your spindle thread size but there is no match on the chart, you may have
an unusual lathe that NOVA doesn’t have an adaptor for. You will need to purchase a blank chuck or a blank insert/adaptor and get it threaded to your requirements.
5. If you can’t find the information on your spindle thread size you will need to take some measurements on your lathe spindle. You only need to do these measurements if you can’t find the info anywhere else.

TAKE THESE MEASUREMENTS:
1. Outside diameter of thread:
2. Pitch of thread:
3. Length of thread:
4. Register diameter:
5. Register length:
Caution:
Ensure that the thread on the adapter and lathe spindle has the exact same pitch and standard. Even if the thread size is the same there are different standards of threads, e.g. UNC/UNF and BSW. If mismatching standard threads are used it may cause damage to both lathe and chuck therefore you will have to know the thread of the spindle accurately.
A reference to quickly distinguish between Unified (UNC or UNF) and British (BSF or BSW) standards:
FLAT TOP = 60° angle (UNC, UNF, Metric threads) ROUND TOP = 55° angle: Whitworth, BSW, BSF

Terms:
BSF: British Standard Fine
BSW: British Standard Whitworth
RH: Right hand
LH: Left hand
TPI: Threads per inch
UN: Unified National Standard
UNC: Unified Coarse Standard
UNF: Unified Fine Standard
UNS: Unified Special
These thread sizes listed are the size which the adaptor converts to (e.g. The thread size listed in the table should match the thread size on your lathe spindle.)
Chuck Inserts from NOVA

SKU	Thread Diam.	Pitch	Thread Direction	Standard	Compatible Lathes	Set Screw
I2NS	M20	2			Tyme Cub
I3NS	M20	1.5			Electra Beckum, Multico Sumaro
I6NS	3/4″	Plain Bore				M6
I7NS	1 1/8″	8TPI		UN(NOT UNC)
I8NS	7/8″	12TPI	LH	NS
I9NS	3/4″	16TPI	RH		(with 6mm register)
IANS	3/4″	4TPI	RH	BSP	TL1000 (pre 1986)
IBNS	3/4″	4TPI	LH	BSP	TL1000 (pre 1986)
ICNS	1″	10TPI	RH	BSF	TL1000, Woodfast/Durden
IDNS	1″	8TPI	RH	UNC	Delta, Rockwell, Golding, General, NOVA Comet (North America) and Mercury lathes
IENS	1″	12TPI	RH	UNF	Myford ML8 Turnstyler
IHNS	3/4″	10TPI	RH	BSW	Rockwell Homecraft
IINS	M24	3	RH		B-Line Arundel K600/K450
IJNS	1 1/8″	12TPI	RH	BSW	Myford Mystro Masterlathe (New Zealand)
IKNS	M18	2.5	RH		Elu DB 180
ILNS	1 1/4″	8TPI	RH		NOVA Galaxi, NOVA Saturn, NOVA DVR 3000, NOVA XP, NOVA 1624 and 1624 II (North America), Laguna Revo	M6
IMNS	1″	10TPI	LH	BSF	TL1000 Woodfast/Durden
INNS	Blank (Can be threaded up to 28mm)
IONS	1 1/8″	7TPI	RH	BSW	Morton
IQNS	M30	3.5	RH		NOVA TL1500/3000/Comet (European & Southern Hemisphere) Woodfast
IRNS	1″	8TPI	RH		Jet 1221 Lathe
ISNS	5/8″	Plain Bore			Designed Specifically for Shopsmith Pro V and Power Pro Machines	M6
ITNS	1″	8TPI	Dual Threaded LH and RH		NOVA Mercury Mini Lathe
IUNS	1 1/8″	12TPI	RH	UNF	Taiwanese lathes
IVNS	7/8″	14TPI	RH	NF
IYNS	1 1/4″	8TPI	RH		For lathes don’t have reverse turning ability
IWNS	M25	2	RH		Tyme Avon (’83 on) and Classic Tanner SD165, Selbix Springwood, Sorby, Cotech
IXNS	1″	8TPI	RH		Designed specifically for the NOVA Comet II Midi Lathe, features lock for the reverse function.	M6