开云体育

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of ww_big_al
Sent: Sunday, February 12, 2023 7:51 AM
To: [email protected]
Subject: Re: [SouthBendLathe] ER40 Collet nut

You are more than welcome to post it. Post the spread sheet also, if you wish. I wrote them to be shared.
Al Knack

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Steve Wells
Sent: Saturday, February 11, 2023 12:23 PM
To: [email protected]
Subject: Re: [SouthBendLathe] ER40 Collet nut

Al, would you mind if I post your project on my website with Owner Credit, I'm trying to add new content and update the site. Nice write-ups in pdf form are very appreciated.
Steve Wells
www.wswells.com


-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of ww_big_al
Sent: Friday, February 10, 2023 9:41 PM
To: [email protected]
Subject: Re: [SouthBendLathe] ER40 Collet nut

The Excel sheet I made up shows the comparison of metric vs imperial collets. I purchased the imperial ones. Cost more, but have size overlap the metric ones don't. The PDF is the ER40 I made for the SB-9A.
Al

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of mike allen
Sent: Friday, February 10, 2023 8:25 PM
To: [email protected]
Subject: Re: [SouthBendLathe] ER40 Collet nut

Nice Job . I'm debating if the ball bearing nuts are worth the extra $$ . I have a set of inch ER40 collets , wish I would have gotten the metric ones instead . MY thinkin is I need a 1 1/2 x8 ,

a 2 1/4 x 8 ( I think , I need to re measure ) & a pair of collet blocks . That would cover both lathes & the mill . I have a set of inch 3C collets for the SB 9A but just the standard inch sizes nothing between 16's . I'm also thinkin of gettin probably a set of ER 16's & that will take me down as small as I can see & then some . Are the wrenches all the same for the ER40 nuts or does that depend on the vendor ?

thanks

animal

On 2/10/2023 4:44 PM, Rick wrote:

I made er40 collet chucks for SB9 and SB13, in addition to square and
hex collet blocks. I bought a set of CDCO collets, which included a
nut and another nut from Shars. I see no difference in quality or
runout. Here is my handiwork.