September 23, 2017 | #256 |
Tomatovillian™
Join Date: Apr 2016
Location: Dallas, TX
Posts: 3,825
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Harbor Freight has a drill bit sharpener that sets and holds the correct angle. Probably pay for itself in short order.
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Stupidity got us into this mess. Why can't it get us out? - Will Rogers |
September 23, 2017 | #257 | |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Quote:
There is no exact correct angle there are many angles for different materials. Been doing it with an angle gauge by hand for years. I even hand grind them for flat bottom counter bore holes. |
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September 23, 2017 | #258 |
Tomatovillian™
Join Date: Jan 2014
Location: Tomato Cornhole
Posts: 2,550
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I used a Youtube hack without having to do anything special to make it work. I had to remove a rusted in CV axle on a Toyota. It's the Vise-Grip hack connected to a slide hammer but this time it's all in a rental kit and I just bought a new set of Vise-Grips to make sure it would grab. This rental kit from Advance has an adapter that fits the Vise-Grip so all you do is remove the tightening screw on the VG and insert the adapter and bang away once you get a good grip. I did have to grind a better groove to grab it but it worked.
It didn't work as easy as it looks but it did finally come out and in my opinion these are the tools to use if you get a rusted CV axle. Here's pics of the set-up and numbers for the kit from Advance Auto. Have fun Weekend Rebels, this job builds character. |
September 24, 2017 | #259 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Here is the old school way of grinding a drill bit with homemade guage.
One is to get the angle the other ruler is to get the point centered. It is attached with a small tool makers clamp. The bit is sharpened at an angle for aluminum but cuts through mild steel like hot butter. Worth IMG_20170924_30238.jpg |
September 24, 2017 | #260 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Here is a quick reference for the angles for different materials.
dont let all the angles confuse you. For wood I will take a brand new bit if I have to and put it on a 135 degree point angle. Most of my bits are at this angle more or less after awhile because it works best for me anyway. |
September 24, 2017 | #261 |
Tomatovillian™
Join Date: Jan 2014
Location: Tomato Cornhole
Posts: 2,550
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I usually just fire up the bench grinder and make it sharp again and it works more times than not. Follow the angle that's there and you really can't mess it up but I've seen people do it so common sense helps.
Here's a quick tutorial for anyone who hasn't seen bit sharpening. https://www.youtube.com/watch?v=mDdJ7CspBM0 |
September 25, 2017 | #262 |
Tomatovillian™
Join Date: Feb 2013
Location: France
Posts: 554
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Let me add an unusual way of sharpening tungsten carbide drills used for concrete : most metal drills won’t cut very hard steel unless you buy top quality at a high price. Sharpen your concrete drill giving it the right angle for metal, you will drill your hole without spending a lot of money.
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October 6, 2017 | #263 | |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Quote:
The knock out set had a major drawback that is easily fixed. I have seen the flaw on expensive ones too. The back portion is the same size as the hole you punch out and it is difficult to pull the thing out. To solve this problem I shaved a few thousands off the back end on each one. It serves no purpose other than to annoy me and make work difficult. Just did this tonight after work. I am constantly finding uses for the lathe. The old gal was spinning at 800 rpm's beautiful finish. Beer time now no more lathe work. Worth IMG_20171006_44961.jpg Last edited by Worth1; October 6, 2017 at 07:47 PM. |
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October 6, 2017 | #264 |
Tomatovillian™
Join Date: Feb 2006
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I want to add that I did it with power feed and had to stop at about 1/4 inch from the spinning chuck.
Safer than doing it by hand feed big time. Worth |
October 8, 2017 | #265 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
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Spent part of the day cleaning up the lathe.
The fairy tale of keeping one in an unheated garage and rusting is just that a fairy tale. Proper wiping and oiling with mineral oil is all it takes. You dont have to do it all the time just the last time you use it. Just make sure it is covered in oil even if it has chips all over it. Worth IMG_20171008_31967.jpg IMG_20171008_19947.jpg |
October 10, 2017 | #266 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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The knockout punch modification worked marvelously.
Worth |
October 11, 2017 | #267 |
Tomatovillian™
Join Date: Feb 2013
Location: France
Posts: 554
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Brilliant cleaning. I hope you cover it with some kind of cloth when not in use.
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October 12, 2017 | #268 | |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Quote:
If I put a cloth over it a mouse would move under it and make a nest pee on it and really ruin the ways and slides. I just wipe it down and oil before use. We dont have blowing sand here in this part of the country. West Texas is another story. |
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October 12, 2017 | #269 |
Tomatovillian™
Join Date: Feb 2013
Location: France
Posts: 554
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No problem as long as you don't grind metal or cut steel with abrasive discs inside your workshop.
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October 12, 2017 | #270 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
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Nope all outside.
You wouldn't believe how fast mice will make a nest around here. Worth |
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