Hello Joe. and Good morning to you as well. ;-) I do not think that you need to make a set of gears to conpencate for you wideiing your Machine. I belive all that you need to do is add one more gear into the linkage, (think of it as a spacer so to speak.) When gears are in line with each other (un-like pulleys) the rpm dose not change, adding a new gear would chang the direction of the rotation, but the pitch will not change, that is un-less you make a duplex gear Then...( you would need do some math to get your pitches ). Buy adding a slot or and adjuctable linkage into you gear arm is all that I belive you will need. you could make a slide arm much like the directional gear set.Your gear arm mostlikely will need to be extended. Now as a side note, you would think that Legacy would have made a nicer arm for there machines ... There should have been a better way to adjust linkage with out moving and changing screw holes, to and for engauging the large/small gearing. Now back to work. Have a Great day Joe. I cant wait to hear how you new machine is running. C.A.G.
----- Original Message ----- From: "'joe biunno' via Legacy Ornamental Mills" <legacy-ornamental-mills@googlegroups.com> To: legacy-ornamental-mills@googlegroups.com Sent: Wednesday, January 21, 2015 6:10:25 AM Subject: Re: gear carriage bearing upgrade and since we are on the subject of the gear carriage, here is something i will throw out there and see if anyone has any suggestions...in considering( and i will emphasize the word "considering"...LOL) widening the bed to increase the turning capacity of the machine,what could be done to the gear carriage to accommodate the added width that must be made to it, while still being able to use all the legacy gears, including the reversing carriage to do opposite twists?...i have worked out all that has to be done to the machine to widen it, but saved the worst for last...and i would not consider making a complete set of custom made gears a solution...too expensive...high points to anyone who has a solution using only items found in a mcmaster-carr catalog!...LMAO!... later guys!...joe On Wednesday, January 21, 2015 at 5:55:36 AM UTC-5, joe biunno wrote: good morning to all(at least it's morning for some of us!)...the swivel bearing is an excellent idea, but due to it's overall size, it seems it would take a bit of machining and major modification to the whole gear carriage to make that happen...double checked the taper situation this morning and there will not be a problem with doing tapers on my extended machine if i just loosen the split collars a bit...not sure if there would be an issue on a 1200 or 1500...and then there is the bronze bushing in the middle gear...there is a decent amount of play with that gear, which i am not going to mess with(for now, anyway!...LOL!)...excellent pick up by tim, as i did have to cut a little bit off the end of the idler gear carriage to allow the smallest gear to be used...joe On Tuesday, January 20, 2015 at 10:47:59 PM UTC-5, Tim wrote: <blockquote> Can you still install the smallest gear? -Tim <blockquote> ----- Original Message ----- From: 'joe biunno' via Legacy Ornamental Mills To: legacy-orna...@googlegroups.com Sent: Tuesday, January 20, 2015 5:58 PM Subject: Re: gear carriage bearing upgrade sorry guys, forgot to mention this in my initial e-mail...the needle bearings are in their own steel housing, so if you loosen the screws a bit to the split shaft collars,there is enough allowance for the bearing to move within the confines of the shaft collar to do a taper to your work...in fact you can "dial it in" ,so to speak, to still have a tight tolerance while setting up the taper...not sure if there is enough allowance to deal with a full taper though...i'll play with that tomorrow...but i would be curious to know if you could do a full taper and not have any gear issues on, for example, a legacy 1200?...thanks for the responses...joe On Tuesday, January 20, 2015 at 7:04:37 PM UTC-5, LILtwisted wrote: <blockquote> On longer mills this upgrade may not effect tapers too much. But the shorter mills will bind this up, I'm afraid. You should see how sloppy my Wood Chuck is, never ever jumped a tooth. And I have all the fine teeth gears too. Hope this does not become a problem for you. Only way to tell is set it at full taper. Mike OK On 1/20/2015 5:45 PM, Bill Bulkeley wrote: <blockquote> Can the mill still do tapers I have found that I like a bit of slop in everything in the gears and linkage so there is enough movement for when you lower one end of the rails to mill tapers. Bill From: legacy-orna...@googlegroups.com [ mailto:legacy-ornamental-mills@googlegroups.com ] Sent: Wednesday, 21 January 2015 10:03 AM To: legacy-orna...@googlegroups.com Subject: gear carriage bearing upgrade ok, so doing some work on the headstock end and saw that the gear carriage assembly was a bit loose and "floating" around a bit...a further inspection revealed that the bronze bearings were worn a bit and that was enough to cause gears to wobble and perhaps,at times, not mesh properly...some quick measurements and a dive into the mcmaster book and i could see with just a few shaft collars(3 total) and a couple of needle bearings, things should tighten up much better than replacing the bronze bushings...so an improvement was called for...a little bit of welding, some minimal grinding and the job is done...total time was 1 1/2 hours, start to finish...the end result is an incredible difference...the carriage is very tight and does not move or waver at all...replacing the bearings is a snap, as well, as split collars were used, although i might expect the needle bearings to last a very long time...with this mod, the machine is now totally on bearings(in the process of doing the "Z" axis now), all axis' and all turning points...sorry for the two bad photos, close-ups just don't come out well with the camera i am currently using...and haven't decided what color to paint this one yet, waiting for a suggestion from curtis...LOL!...anyway, all comments welcome and more mods to follow...and if anyone should want more detailed info on this mod(like specific mcmaster numbers, for example) or any i have done in the past, feel free to ask...thanks...joe -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com . To post to this group, send email to legacy-orna...@googlegroups.com . Visit this group at http://groups.google.com/group/legacy-ornamental-mills . For more options, visit https://groups.google.com/d/optout . -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com . To post to this group, send email to legacy-orna...@googlegroups.com . Visit this group at http://groups.google.com/group/legacy-ornamental-mills . For more options, visit https://groups.google.com/d/optout . </blockquote> -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com . To post to this group, send email to legacy-orna...@googlegroups.com . Visit this group at http://groups.google.com/group/legacy-ornamental-mills . For more options, visit https://groups.google.com/d/optout . </blockquote> </blockquote> </blockquote> -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com . To post to this group, send email to legacy-ornamental-mills@googlegroups.com . Visit this group at http://groups.google.com/group/legacy-ornamental-mills . For more options, visit https://groups.google.com/d/optout . -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. 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