BTW, I checked my tap against the lead screw and they nested perfectly full length. So the ACME tap which I think I got from McMaster Carr seems correct. DanK
On Monday, January 22, 2024 at 10:31:12 PM UTC-5 Tim Ziegler wrote: > Hey Tim Porter, > > Not sure if you saw my email but I may have a length to sell. What length > are you looking for? > You can private email me and we can possibly discuss this. > > 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 Mon, Jan 22, 2024 at 12:55 PM Tim Porter <imath...@gmail.com> wrote: > >> Hi Bill >> >> I spoke with Legacy this morning and they made their own lead screws and >> they were indeed square profile threads. This would make sense as the >> trapezoid profile would push the screw out of engagement with a load. If I >> had access to a lathe I would make a thread chaser tool to rework the >> profile of my half nuts made with the standard acme tap >> >> Anybody got a piece of lead screw floating around? >> >> >> Sent from my iPhone >> >> Tim and Cathy Porter >> 1902 Dandridge St Apt 7 >> Sun City Center. FL 33573 >> 815-861-1505 <(815)%20861-1505> >> >> On Jan 22, 2024, at 12:25 PM, Tim Porter <imath...@gmail.com> wrote: >> >> Got me. Not sure where the machine came from, as it is far older than >> anyone here knows about but since we have the owners manual and stuff I am >> thinking it was purchased new. I don’t believe anyone would have changed >> out the lead screws and I am pretty sure they have a square profile. I >> will double check it when I go back in Wednesday. I am going to reach out >> to Legacy to see if they can shed any light on it. I am also going to put >> a notice on this board to see if someone had a piece of lead screw on hand. >> >> >> Sent from my iPad >> >> Tim and Cathy Porter >> 1902 Dandridge St D7 >> Sun City Center FL 33573 >> >> >> H. 813-419-4169 <(813)%20419-4169> >> C. 815-861-1505 <(815)%20861-1505> >> >> On Jan 22, 2024, at 12:05 PM, bulk...@mmnet.com.au wrote: >> >> >> >> As far as I know legacy never made a square thread leadscrew I didn’t >> notice that in your pics where did that leadscrew come from ? >> >> One of the members might have one they could sell to you to make it right >> or there are places that sell it I believe >> >> >> >> Bill >> >> >> >> >> >> *From:* legacy-orna...@googlegroups.com <legacy-orna...@googlegroups.com> >> *On Behalf Of *Tim Porter >> *Sent:* Tuesday, January 23, 2024 3:45 AM >> *To:* legacy-orna...@googlegroups.com >> *Subject:* Re: Split nut tap >> >> >> >> I took a closer look this morning while at the Woodshop and my half nuts >> were made with a tap that has trapezoid thread form, like a standard acme. >> The lead screw has square thread form, like a buttress thread. I am going >> to consult my Machinery Handbook to find what is needed. But the difference >> between the two profiles is preventing the half nuts I had made from fully >> engaging. Diameters and lead are correct. When I obtain the proper tap, I >> should be able to rethread my current blocks and be good to go. BTW there >> is no reason these half nuts couldn’t be made from hard maple. >> >> >> >> >> >> Sent from my iPad >> >> >> >> Tim and Cathy Porter >> >> 1902 Dandridge St D7 >> >> Sun City Center FL 33573 >> >> >> >> >> >> H. 813-419-4169 <(813)%20419-4169> >> >> C. 815-861-1505 <(815)%20861-1505> >> >> >> >> On Jan 22, 2024, at 7:04 AM, cdkr...@gmail.com <cdkr...@gmail.com> wrote: >> >> >> >> I bought a tap during the original discussion, but haven't used it yet. >> Now I'm hafta check. >> >> DanK >> >> >> >> On Monday, January 22, 2024 at 6:59:13 AM UTC-5 Tim Ziegler wrote: >> >> Looks good Bill and does look like the same company I bought from. I will >> try to look it up in my history too. But they sure worked great. >> >> >> 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 Sun, Jan 21, 2024 at 10:03 PM <bulk...@mmnet.com.au> wrote: >> >> >> https://www.ebay.com/itm/175270225800?hash=item28ceeb6788:g:zNUAAOSwGk5f4Z1a&amdata=enc% >> >> >> >> this is the tap I would buy it looks like the one I bought but it is a >> trapezoidal tap so it will be 30 degrees and not 29 but because your tapping >> >> Delrin not metal there is a bit of leeway finding the exact correct one >> is almost impossible I looked for 10 years and of course you don’t know >> till you try it that it will work with a possible bad batch out there, I >> had to do that I took a chance and it worked, one last thing the >> recommended tapping drill >> >> Is a little small for Delrin and one degree out so 7/16 is what I used >> and it allows for the strange cutting properties of the Delrin. But all >> this is just what I would do you all must make up your own minds here is >> some Delrin I tapped >> https://www.youtube.com/watch?v=FOUW3xblB_4&ab_channel=aussiman77181 >> >> >> >> >> >> Bill >> >> >> >> *From:* legacy-orna...@googlegroups.com <legacy-orna...@googlegroups.com> >> *On Behalf Of *bulk...@mmnet.com.au >> *Sent:* Monday, January 22, 2024 2:05 PM >> *To:* legacy-orna...@googlegroups.com >> *Subject:* RE: Split nut tap >> >> >> >> So here is what I think, 4 threads per inch is 0.25000 of an inch pitch >> in metric that’s 6.350 mm so they might have made the tap at 6mm pitch >> which is 4.23 threads per inch and that will never fit our acme lead >> screws. That’s my 2 cents worth lol >> >> >> >> Bill >> >> >> >> >> >> *From:* legacy-orna...@googlegroups.com <legacy-orna...@googlegroups.com> >> *On Behalf Of *bulk...@mmnet.com.au >> *Sent:* Monday, January 22, 2024 1:44 PM >> *To:* legacy-orna...@googlegroups.com >> *Subject:* RE: Split nut tap >> >> >> >> Here you go curt >> https://www.rolledthreads.com/what-is-the-difference-between-acme-and-trapezoidal-threads >> >> >> >> Bill >> >> >> >> *From:* 'Curt George' via Legacy Ornamental Mills < >> legacy-orna...@googlegroups.com> >> *Sent:* Monday, January 22, 2024 12:55 PM >> *To:* legacy-orna...@googlegroups.com >> *Subject:* Re: Split nut tap >> >> >> >> Hey Bill >> >> >> >> Its been a while, I have two Acme screw taps (5/8-4 and One 5/8-8 tap) My >> first tap was a home made tap. >> >> I used a short piece of an Legacy Acme screw to make the tap. the other I >> bought on the web. some years back. (*I wasn't aware there were a >> different thread angle. I guess I just got lucky?*) >> >> >> >> I was wondering if these home made split nuts made by Tim P. could be >> re-molded. or if it would be a waist of time? >> >> >> >> *HEY. Tim P. If you like, Send me the plastic, and I can try to cut them >> for you. * >> >> *I know that taps that I own fit my Legacy. If you can send me the part, >> I will tap it and send it back to you. * >> >> *Send me a private E-mail at curt....@yahoo.com and I will GIVE you the >> mailing info.* >> >> >> >> C.A.G. >> >> >> >> On Sunday, January 21, 2024 at 08:34:39 PM EST, <bulk...@mmnet.com.au> >> wrote: >> >> >> >> >> >> I don’t know if I could find them again at the time I showed everybody >> the right one but I didn’t get much >> >> Interest so I didn’t bother keeping track only you me and curt bought >> them if I remember >> >> >> >> Bill >> >> >> >> *From:* legacy-orna...@googlegroups.com <legacy-orna...@googlegroups.com> >> *On Behalf Of *Tim Ziegler >> *Sent:* Monday, January 22, 2024 12:00 PM >> *To:* legacy-orna...@googlegroups.com >> *Subject:* Re: Split nut tap >> >> >> >> Curt he simply needs a tap like ours so it matches the acme thread. >> >> >> 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 Sun, Jan 21, 2024 at 3:34 PM 'Curt George' via Legacy Ornamental >> Mills <legacy-orna...@googlegroups.com> wrote: >> >> Hello Tim >> >> >> >> Your problem doesn't sound right? >> >> Can you explain what is happening with these split nuts? Or perhaps show >> a photo of your set-up? >> >> >> >> I would really like to help you. but I need to know/see the problem... >> >> >> >> Dose the split nut fit the shaft if you lay it on the acme screw? >> Perhaps it was cut slightly off??? >> >> >> >> more latter. >> >> >> >> C.A.G. >> >> >> >> On Sunday, January 21, 2024 at 04:29:45 PM EST, Tim Porter < >> imath...@gmail.com> wrote: >> >> >> >> >> >> Hi Folks >> >> >> >> I had two pair of split nuts made using a standard 5/8”-4 acme tap and >> for some reason it doesn’t quite fit the lead screw. I have checked it >> near the end of the shaft where there is no chance of wear. It’s like the >> lead is off a few thousands of an inch or the thread width of the tap is >> just a little too big. Driving me bonkers. Anyone had issues with making >> new half nuts? >> >> >> >> Thanks. >> >> -- >> 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/e18b1952-602c-4937-ae7e-54735ee52e10n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/legacy-ornamental-mills/e18b1952-602c-4937-ae7e-54735ee52e10n%40googlegroups.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 >> 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