Converting Bench Grinder into a sander - Scroll Saw Woodworking & Crafts Message Board

boogatoo · 02-18-2006, 02:51 AM

I plan to Convert my bench grinder into drum a sander.

I will remove the wheels and put a 1/2" chuck on it. In the chuck, I could either put a sanding drum, Flap sander or a flex shaft.

The shaft on the grinder mesure 1/2" so I will put a chuck from LeeValley part #68K05.01 (only 7.50$ US or 10$ CAN). My grinder turns at 3400 RPM. I believe it is a bit fast. Anyone have an opinion on this?

If it is too fast, I might have to mount pulley on the arbor to drive a mandrel (LeeValley 68K01.01)with a larger pulley on it.Here is a good link for determinig Pulley speed.
http://www.woodmagazine.com/wood/sto...ml&catref=wd17

Hobbyhorse · 02-18-2006, 07:14 AM

Boogatoo,
My production model drum sander turns at 1300 rpm through pulleys. I suspect that you will have problems of overheating at 3400 rpm.

Rhys H.

owler · 02-21-2006, 04:18 PM

I have been advised that a drum sander should not turn faster than 1800 RPM.

boogatoo · 02-28-2006, 11:16 PM

I will use a motor instead of a grinder. I found a 1730 RPM, 1/3 HP and will connect a 3 setps pulley to lower the speed while having variable speed.
All this will be mounted on a 5/8 mandrel on wich I will screw a 1/2 R.H. drill chuck. Thanks for your advices.

02-18-2006, 02:51 AM	#1
boogatoo Member Join Date: Jul 2005 Posts: 90	Converting Bench Grinder into a sander I plan to Convert my bench grinder into drum a sander. I will remove the wheels and put a 1/2" chuck on it. In the chuck, I could either put a sanding drum, Flap sander or a flex shaft. The shaft on the grinder mesure 1/2" so I will put a chuck from LeeValley part #68K05.01 (only 7.50$ US or 10$ CAN). My grinder turns at 3400 RPM. I believe it is a bit fast. Anyone have an opinion on this? If it is too fast, I might have to mount pulley on the arbor to drive a mandrel (LeeValley 68K01.01)with a larger pulley on it.Here is a good link for determinig Pulley speed. http://www.woodmagazine.com/wood/sto...ml&catref=wd17 Last edited by boogatoo; 02-18-2006 at 03:10 AM.

02-21-2006, 04:18 PM	#3
owler Guy with tools Join Date: Nov 2005 Location: North West, NJ Posts: 245	I have been advised that a drum sander should not turn faster than 1800 RPM. __________________ Dan -Just do'in the best I can every day

02-28-2006, 11:16 PM	#4
boogatoo Member Join Date: Jul 2005 Posts: 90	I will use a motor instead of a grinder I will use a motor instead of a grinder. I found a 1730 RPM, 1/3 HP and will connect a 3 setps pulley to lower the speed while having variable speed. All this will be mounted on a 5/8 mandrel on wich I will screw a 1/2 R.H. drill chuck. Thanks for your advices. Last edited by boogatoo; 03-01-2006 at 03:54 AM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Converting Fretwork patterns to Segmentation	Dchatley	Intarsia and Segmentation	5	05-17-2007 02:20 AM
portable belt sander vs tabletop vs bow sander	harrisg	General Scroll Saw	3	01-17-2006 06:42 AM
Arbortech mini grinder	Guest	Off Topic	2	04-09-2003 01:23 AM
Toothed grinder wheel	mbob	Off Topic	6	11-22-2002 03:33 AM
Ange Grinder Info	imported_admin	Off Topic	2	07-20-2002 01:13 AM

02-18-2006, 07:14 AM	#2
Hobbyhorse Senior Member Join Date: Apr 2005 Location: Auckland, New Zealand Posts: 294	Boogatoo, My production model drum sander turns at 1300 rpm through pulleys. I suspect that you will have problems of overheating at 3400 rpm. Rhys H.