Curt, the duplex I made consists of two gears, the small one engages the driver gear using 45 teeth. The larger gear engages the index gear using 66 teeth. So the gear ratio through the entire linkage is 1.5 :1 or 2:3 depending upon how you look at it. I'm using a 90 tooth driver and the 88 tooth index. So the chain is 2:1 times 3:4 or 6/4. Going the other way it's 4/6. You may notice that the gear train is not factory issue because of my index mod. So the duplex gear is "inside out". DanK
On Sunday, September 17, 2023 at 5:48:11 PM UTC-4 Curt George wrote: > Question? Dan. > > What is the gear ratio? (how many teeth per gear, Both Gears) > > C.A.G. > > On Sunday, September 17, 2023 at 01:41:36 PM EDT, 'Curt George' via Legacy > Ornamental Mills <legacy-orna...@googlegroups.com> wrote: > > > Hey Guys! > > Just woke up, its been one LONG day for me. two double shifts back to > back. (two 16hrs days of work. 30hrs AT work, out of the last 48 .) > > So I am sorry that I am a late comer on this one. > > Dan. AWESOME Job on that gear combo. I cant wait to hear how it works out > in your testing. > Good job! > > C.A.G. > On Saturday, September 16, 2023 at 09:56:11 PM EDT, Tim Ziegler < > timjz...@gmail.com> wrote: > > > yeah gets a little spendy Bill. > Kind Regards, > > Timothy J. Ziegler > Ziegler WoodWork & Specialty > Ziegler Laser Worx LLC > 14171 160th Ave. > Foreston MN 56330 > > 320-294-5798 <(320)%20294-5798> shop > 320-630-2243 <(320)%20630-2243> cell > > > On Sat, Sep 16, 2023 at 4:55 PM <bulk...@mmnet.com.au> wrote: > > I would but the shipping to oz is always the problem > > > > Bill > > > > *From:* legacy-orna...@googlegroups.com <legacy-orna...@googlegroups.com> *On > Behalf Of *Tim Ziegler > *Sent:* Saturday, September 16, 2023 10:50 PM > *To:* legacy-orna...@googlegroups.com > *Subject:* Re: Eureka! > > > > Hey Rick, > > > > Yeah I have that offer out there too and to my surprise no takers yet. > > I have cut gears that work perfectly on my Revo too. > > > Kind Regards, > > > > Timothy J. Ziegler > > Ziegler WoodWork & Specialty > > Ziegler Laser Worx LLC > > 14171 160th Ave. > > Foreston MN 56330 > > > > 320-294-5798 <(320)%20294-5798> shop > > 320-630-2243 <(320)%20630-2243> cell > > > > > > On Sat, Sep 16, 2023 at 7:34 AM Rick Hutley <rghu...@gmail.com> wrote: > > Dan - congratulations! > > > > I have been following this conversation quietly in the background (along > with the gear calculations conversation). To be honest, even though I too > have a scroll saw, I am not skilled enough / practiced enough on the Legacy > to be up to building my own. However, I was intrigued by your work using > acrylic gears. > > > > I wanted to let the group know that I have a laser engraver that will > easily cut acrylic - and very, very precisely. If anyone has a graphics > file or .pdf of the gear(s) you need, I would be happy to cut them out for > you. The beauty is, once we have a good graphics file I could cut new gears > in minutes. > > > > Rick > > > > On Sep 15, 2023, at 15:42, cdkr...@gmail.com <cdkr...@gmail.com> wrote: > > > > (He runs down the road naked shouting "Eureka! Eureka!" > > > > TMI, I know. But I was successful in getting these plastic gears to run > true enough to work on a slightly modified banjo system. I had to extend > the slot on the driver side of the main banjo and cut the sides back on > that channel so it would slide over the driver shaft, not stop against it. > Very minor changes, which ultimately expand the banjo to its absolute > maximum range. The right side of the banjo is also at it's maximum. > > > > It looks to be the correct ratio, too. I haven't made any cuts yet, so > the proof is still in the pudding. > > > > I took a video so you could see it actually in motion. The scraping sound > is the plastic gear rubbing against the idler screws, which I had to > flatten. > > > > <45-66DuplexGear.JPG> > > DanK > > -- > 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...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/legacy-ornamental-mills/94ab7814-57b8-4370-9a97-240b1873dbean%40googlegroups.com > > <https://groups.google.com/d/msgid/legacy-ornamental-mills/94ab7814-57b8-4370-9a97-240b1873dbean%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > <45-66DuplexGear.JPG> > > -- > 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...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/legacy-ornamental-mills/951CF3AE-9A7B-41EF-AAAE-52DD9C84AF71%40gmail.com > > <https://groups.google.com/d/msgid/legacy-ornamental-mills/951CF3AE-9A7B-41EF-AAAE-52DD9C84AF71%40gmail.com?utm_medium=email&utm_source=footer> > . > > -- > 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...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/legacy-ornamental-mills/CAMBiJLHYiS%3DNk19%2BtDADNaKyC264iWkJcs895yjOpye_v2u05Q%40mail.gmail.com > > <https://groups.google.com/d/msgid/legacy-ornamental-mills/CAMBiJLHYiS%3DNk19%2BtDADNaKyC264iWkJcs895yjOpye_v2u05Q%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > 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...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/legacy-ornamental-mills/002a01d9e8e8%2489a1f690%249ce5e3b0%24%40mmnet.com.au > > <https://groups.google.com/d/msgid/legacy-ornamental-mills/002a01d9e8e8%2489a1f690%249ce5e3b0%24%40mmnet.com.au?utm_medium=email&utm_source=footer> > . > > -- > 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...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/legacy-ornamental-mills/CAMBiJLHevwVESp3orwXzUZPqxmDivsk7xaxVFPVLDC91DtEedw%40mail.gmail.com > > <https://groups.google.com/d/msgid/legacy-ornamental-mills/CAMBiJLHevwVESp3orwXzUZPqxmDivsk7xaxVFPVLDC91DtEedw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > 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...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/legacy-ornamental-mills/1261677278.1493086.1694972491997%40mail.yahoo.com > > <https://groups.google.com/d/msgid/legacy-ornamental-mills/1261677278.1493086.1694972491997%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. 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