I did the same thing,? turned the spigot way down to bring the collet right up to the spindle.? ?Did the same for the 4-jaw.? Figured getting that big weight closer to the spindle bearings was a good idea.?
On Fri, Feb 10, 2023, 8:41 PM ww_big_al <
arknack@...> wrote:
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.
>
>
Nick Andrews