Re: [Emc-users] Milling arbor adaptor
On 5 January 2013 17:02, Jason Burton lathebuil...@gmail.com wrote: How about silver brazing key stubs onto the inner and outer faces of a sleeve? In the end, I did this: https://picasaweb.google.com/lh/photo/1rMJccMQo6Q9Vfxi0Fq33tMTjNZETYmyPJy0liipFm0?feat=directlink ie, I made a whole new arbor specifically for the job. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On Sat, Jan 5, 2013 at 1:59 PM, andy pugh bodge...@gmail.com wrote: On 5 January 2013 17:02, Jason Burton lathebuil...@gmail.com wrote: How about silver brazing key stubs onto the inner and outer faces of a sleeve? In the end, I did this: https://picasaweb.google.com/lh/photo/1rMJccMQo6Q9Vfxi0Fq33tMTjNZETYmyPJy0liipFm0?feat=directlink ie, I made a whole new arbor specifically for the job. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Nice. Maybe I missed it, but what taper is that? Jason -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On 5 January 2013 21:20, Jason Burton lathebuil...@gmail.com wrote: Nice. Maybe I missed it, but what taper is that? 30 INT. (Which seems to be unknown in the US, but is very similar to NMTB 30) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Milling arbor adaptor
I have a 1.25 bore gear hob, and a 1 bore horizontal milling arbor for my milling machine. I am trying to figure out how to make an adaptor. The ideal thing would have an internal keyway and an external key, but I can't off-hand think of a way to make that with sufficient guarantee of concentricity. The Plan B is a machined sleeve with holes for pegs which can engage both keyways. Not having ever used a horizontal milling arbor, should there be a full-length key? Mine appears to only have one very short key. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
Greetings -Original Message- From: andy pugh [mailto:bodge...@gmail.com] Sent: 03 January 2013 11:45 I have a 1.25 bore gear hob, and a 1 bore horizontal milling arbor for my milling machine. I am trying to figure out how to make an adaptor. The ideal thing would have an internal keyway and an external key, but I can't off-hand think of a way to make that with sufficient guarantee of concentricity. The Plan B is a machined sleeve with holes for pegs which can engage both keyways. Not having ever used a horizontal milling arbor, should there be a full-length key? Mine appears to only have one very short key. The arbors I have used typically have a long key going through all the spacers. A short key might wander axially under extended heavy cutting. If you turn the OD and bore the ID of your adaptor then the straightness of the arbor is probably a bigger error than your adaptor's concentricity. I don't think the keys matter that much - unless I misunderstand the question. John Prentice -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
Turn/bore a sleeve. Very concentric. Cut a slot on the OD using endmill or wodruff keyway cutter. Use broach or shaper to cut internal keyway (and not directly under the outer keyway;)) Note: if soft steel you can shape/broach both w/ a lathe carriage. But its very slow going unless you have a beefy lathe. Stephen On Thu, Jan 3, 2013 at 6:45 AM, andy pugh bodge...@gmail.com wrote: I have a 1.25 bore gear hob, and a 1 bore horizontal milling arbor for my milling machine. I am trying to figure out how to make an adaptor. The ideal thing would have an internal keyway and an external key, but I can't off-hand think of a way to make that with sufficient guarantee of concentricity. The Plan B is a machined sleeve with holes for pegs which can engage both keyways. Not having ever used a horizontal milling arbor, should there be a full-length key? Mine appears to only have one very short key. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On 3 January 2013 14:04, Stephen Dubovsky smdubov...@gmail.com wrote: Turn/bore a sleeve. Very concentric. Cut a slot on the OD using endmill or wodruff keyway cutter. Use broach or shaper to cut internal keyway (and not directly under the outer keyway;)) There is only 1/4 diameter difference, so the wall thickness of the sleeve may not be enough for the outer keyway. (I am hoping that an arbor of the correct diameter and taper will turn up on eBay) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On Thu, Jan 3, 2013 at 9:10 AM, andy pugh bodge...@gmail.com wrote: On 3 January 2013 13:38, John Prentice (FS) j...@castlewd.freeserve.co.uk wrote: If you turn the OD and bore the ID of your adaptor then the straightness of the arbor is probably a bigger error than your adaptor's concentricity. I don't think the keys matter that much - unless I misunderstand the question. I rather imagine that the keys provide the cutting torque? Any slippage with a gear hob would be a problem. I don't really think that 1/8 wall thickness is enough for both an internal and external keyway (even if staggered), so I was thinking that the external key would need to be integral to the adaptor. But that would have to be milled, which means a change in setup. (and my rotary axis is not particularly good) This picture gives me an idea, though: http://www.ebay.com/itm/MILLING-MACHINE-ARBOR-ADAPTER-COLLAR-SPACER-1-x-1-5-8-x-2-long-9482-/181053049758 I actually have a spare arbor (MT2, and so no good to me) with a set of spacers. I can machine a step on two of the wider ones, and use a super-thick key. -- atp Why not turn and bore the adapter, then cut a full length slot in it the width of the key. Then just use a key that's high enough to fit in both the keyway slots? Mark -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On 3 January 2013 14:20, Mark Wendt wendt.m...@gmail.com wrote: Why not turn and bore the adapter, then cut a full length slot in it the width of the key. Then just use a key that's high enough to fit in both the keyway slots? I can't convince myself that the load on the key is exactly the same in that scenario (is it just two separate shear planes, or can the key rock because the sleeve can rotate?). I need to check the key sizes too. It may need to be a stepped key. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
Didn't think about the 1/8 wall thickness. Hmm. Maybe a series of interrupted thru cuts in a line to use multiple shorter (lengthwise) keys? Sort of like multiple woodruff keys that are sometimes used on wide gears. But full depth through the shell? I don't think Marks suggestion of cutting all the way through end to end will work. The key is no longer in shear and will want to rock over. Hmm. Sounds like a proper arbor is the easiest way:P What taper are you looking for? Maybe post a WTB over on PM. On Thu, Jan 3, 2013 at 9:13 AM, andy pugh bodge...@gmail.com wrote: On 3 January 2013 14:04, Stephen Dubovsky smdubov...@gmail.com wrote: Turn/bore a sleeve. Very concentric. Cut a slot on the OD using endmill or wodruff keyway cutter. Use broach or shaper to cut internal keyway (and not directly under the outer keyway;)) There is only 1/4 diameter difference, so the wall thickness of the sleeve may not be enough for the outer keyway. (I am hoping that an arbor of the correct diameter and taper will turn up on eBay) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On 3 January 2013 14:49, Stephen Dubovsky smdubov...@gmail.com wrote: Hmm. Sounds like a proper arbor is the easiest way:P What taper are you looking for? Maybe post a WTB over on PM. I want a 30 INT. There is one here: http://www.ebay.co.uk/itm/370555655855?_trksid=p5197.c0.m619 It's just slightly too expensive for me to buy without careful consideration. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On Thu, 2013-01-03 at 14:49 +, andy pugh wrote: On 3 January 2013 14:20, Mark Wendt wendt.m...@gmail.com wrote: Why not turn and bore the adapter, then cut a full length slot in it the width of the key. Then just use a key that's high enough to fit in both the keyway slots? I can't convince myself that the load on the key is exactly the same in that scenario (is it just two separate shear planes, or can the key rock because the sleeve can rotate?). I need to check the key sizes too. It may need to be a stepped key. Given my druthers I'd do it a bit differently. On the lathe machine a stepped adapter; i.e. 1.000 bore, 1.25 OD but stepped to the usual dia of the spacers for an inch or so. Broach the inner slot so it is backed by the integral spacer. Then mill the outer slot and make it a close fit. Use regular spacers on the front part. Mild steel would probably work but acraloy, i.e. normalized 4140 shafting at Rc 30 would be better. I hope the above description makes sense. ;-) Good luck. Dave -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
dave wrote: On Thu, 2013-01-03 at 14:49 +, andy pugh wrote: On 3 January 2013 14:20, Mark Wendt wendt.m...@gmail.com wrote: SNIP Do you have other holders for this spindle? If so then make an arbor to fit the hob and turn the end down to fit available holder. 1 1/4 shaft, keyed, turned down to fit. Ed. -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Milling arbor adaptor
On 3 January 2013 17:53, ed ate...@mwt.net wrote: Do you have other holders for this spindle? If so then make an arbor to fit the hob and turn the end down to fit available holder. 1 1/4 shaft, keyed, turned down to fit. That would be a possibility. I have a Clarkson chuck I am unlikely to ever use. I could even use the thread in the collet to tighten it all up, and keep the running end all solid. Hmm…. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
