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1st Apr 2019, 12:55 PM #16
Tee Slotted Cross Slide & nut
Thanks for that, unfortunately my parole officer is limiting my spending on "toys" at the moment so that one will have to go on the back burner for now, but I will keep it in mind.
The idea of drilling and tapping the existing nut to the larger screw size was partially to save money as well.
My biggest problem at the moment is the epoxy, apparently the guy at 3M was talking through his hat (according to some of their retailers). I can still get the 3M 1838B/A epoxy in 50 ml kits @ $44.72 + GST per kit, but it is a min order of 6 kits, and 25 days USA.
The correct epoxy adhesive for Turcite is called Waylock it's not a 3M product. Waylock adhesive is made by Trelleborg, it's very expensive, only available in large quantities and and it is not imported into Australia.
3M 1838B/A epoxy is apparently the next best thing.
Guess I'll just keep at it.
Cheers
Tex
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1st Apr 2019, 01:11 PM #17
Turcite application and scraping videos
Hi Guys,
For anyone interested in Turcite application and scraping you will find some excellent videos at Vintage machinery.org: https://www.youtube.com/watch?v=olpSKiQRrWo
And one of my other YouTube machine shop favourites is This Old Tony: https://www.youtube.com/user/featony
I have learnt a heap of stuff on both those channels.
Cheers
Tex.
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1st Apr 2019, 08:21 PM #18Most Valued Member
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From memory the last time I was looking at epoxy availability there were a couple of AU companies making epoxy resins/adhesives.
Might be worth investigating and having a chat to their tech guys to see if they have an equivalent product. You might even get lucky with getting a sample to play with.
Steve
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2nd Apr 2019, 12:13 PM #19
Epoxy
Couldn't find your post, just realised there is now a second page to this thread, DOH!
Hi Steve,
Yes their are actually quite a few, but this stuff has very specific qualities.
I have made some progress, the guy from 3M is currently investigating an equivalent/replacement for me.
Cheers
Tex
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5th Apr 2019, 01:27 PM #20
Baking cast iron
Ok, I'm a up to the baking of the Cross slide and then sand blasting before I apply the Turcite, anybody got any clues as to the "baking" procedure, duration etc?
Took a week to get a reply from 3M. Unsatisfactory answer, "Locally stocked 2216 Epoxy might be an alternative. Where the 1838 is rigid the 2216 is more flexible". My understand is flexible is NOT good for this application.
In the mean time I bought some JB Weld JB 8265-S cold weld 2 part Epoxy Adhesive system on recommendation in one of the forums, think I will go with that. It was cheap on EBay from local supplier.
Cheers
Tex
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5th Apr 2019, 10:44 PM #21Most Valued Member
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The only JB Weld I've used is the vanilla flavour that you can get from hardware stores.
It's been good stuff though and my 7 year old kit is still going strong.
Hopefully the special brew you've got works even better.
Steve
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6th Apr 2019, 10:25 AM #22
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11th Apr 2019, 12:39 PM #23
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12th Apr 2019, 09:11 PM #24Most Valued Member
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I reckon the 3M guy will just be looking at it's cured mechanical properties which is probably the important part as long - as you can get to that point!
For applying on turcite you could probably get away with a self leveling type of product as you're just spreading it on both surfaces then putting them together. There won't be any appreciable volume to "flow"
Steve
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16th Mar 2020, 10:02 AM #25
Baking, Turcite, epoxy & scraping
Hi Guys,
Everything went on the back burner for some months whilst i did an intensive course in building a large LiFePO4 prismatic cell battery and BMS system for the van.
Anyway I did get as far as epoxying the Turcite to the saddle and scraping it in, it all actually went brilliantly, had to bake the cross slide twice and clean in white spirit to get rid of all the soaked in oils etc.
Hope to get back to the project next week.
Cheers
Tex
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17th Mar 2020, 12:11 AM #26Most Valued Member
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17th Mar 2020, 11:28 AM #27
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17th Mar 2020, 11:40 AM #28
Epoxy
Forgot to mention, I used JB Weld epoxy, perfect for the job, readily available.
Also I remade to groove in the bottom of the saddle vees by hand with a parting tool, eesy peesy.
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17th Mar 2020, 12:19 PM #29Most Valued Member
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I’m assuming you still needed to scrape the Turcite after gluing it on?
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17th Mar 2020, 01:15 PM #30
Scraping Turcite
Re scraping Turcite, yes definitely needs scraping.
I put Glad Wrap over the ways and clamped the saddle down very tight, but it still definitely needed scraping.
I picked up the info on that process here: https://www.youtube.com/watch?v=4k0Ze0Hwvbg
My job was on vees, and that example is flat, but you can see the read when it's blued up.
It's certainly easy to "pull" scrape.
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