Pin Chuck Size Limit

Re: Pin Chuck Size Limit

Richard Allen

>I have used a 1" pin chuck on 16"x6" blanks and it worked fine.

Re: Pin Chuck Size Limit

Wally Dickerman at Green Valley, Az.

>I have a 1 inch pin chuck that I've used for a long time. However, John Nichols made me a 1 1/8 in. pin chuck that is threaded to go on my spindle. Works great on very large burls, etc.

Wally

Re: Pin Chuck Size Limit

Don Evans

>Just be careful what you use to make it out of. Bolts for example are not all created equal in strength, especially the forces that will be applied using it this way.

Personally, I wouldn't use bolts in this application.

Don

Re: Pin Chuck Size Limit

Doug Leite

>I have one that's 1 3/8" X 6" that screws onto my spindle. I use it for shaping the outside of natural edge bowls and to cut the chuck spigot.

Works great.

Aloha, Doug

Re: Pin Chuck Size Limit

Andrew Hilton

>I have a 3/8" pin chuck as well and regularly do 12" x 4" maple bowls with it (pre-rounded). But, if I were going to commit myself to making a hole for a pin chuck, I'd feel more comfortable just using a screw chuck instead. I've done 16 and 20 rough bowl blanks with a good screw chuck with no problems.

I just don't often want to commit myself and drill a hole that way without room for moving the centers around if need be to get the best position for the wood.

pin vs screw?

Matthew- Li, ny

>im real new to turning,and guessing that a pin chuck is just a machine threaded bolt?

i actually bought one of these yesterday at a workshop,specifically advertised for making bottle-stoppers,its PSI brand.

so other than making bottle stoppers or keychians/pool cues or anything that would use that dia.drilled hole left over for screwing something together,,,why else would you use the PIN over a Screw,assuming its a strong screw or maybe even some kind of lag-bolt ?

Re: pin vs screw? *LINK*

Stuart Johnson

>Matthew,

I have a 3/8" pin chuck and 3/8" screw chuck. The pin chuck is smooth rod with a flat that holds a small pin or nail. When the piece spins the pin causes it to wedge tight. The screw chuck relies on the screw thread to hold. A slight oversize when drilling isn't as critical with the pin. I think the PSI mandrel you are speaking about has the same thread as the the stoppers and would be for specific use.

You can see a good example of the pin chuck at the link below.

Stuart


http://www.yoyospin.com/stop/page2.html

Re: pin vs screw?

Andrew Hilton

>I'll use the pin chucks on smaller, more production type items where speed in getting the turning on and off the chuck is an issue.

I use it on smaller items simply because the holding action of the screw chucks rely on the threads of the screw biting into the wood of the hole. For smaller diameter turned pieces, you'll more easily split the turning either screwing it onto the screw chuck or while turning it. For larger items, I like the holding power of specific made screw chucks. Simply using your basic bolt isn't as good as screw chucks specifically made for the purpose because they're going to have sharper, deeper and angled threads that hold better. But, for little bowls, etc. you might not notice a difference. I have though.

The speed issues is just the fact that you can just twist half a turn (at most) and you release that wedge of the pin chuck and slip your turning off quickly. Pop another one on just as quickly. For a screw chuck, you have to unscrew it (ummmm ... duh ). It takes a little time to do that sometimes.

I'm not crazy about some pin chucks, especially most homemade ones, because you have to keep track of that pin and not loose it. Else you have to make a new one. Of course, that could be just as simple and finding a finishing nail. Still, it's just another thing to loose. At least for me.