https://www.youtube.com/watch?v=UXaSGRgvqZs
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Thanks bobneumann! We've added your Steel Plate Hole Cutting Method to our Metalworking category,
as well as to your builder page: bobneumann's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-steel-plate-hole-cutting-method"> <img src="/uploads/249087/homemade-steel-plate-hole-cutting-method.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-steel-plate-hole-cutting-method">Steel Plate Hole Cutting Method</a> <span> by <a href="https://www.homemadetools.net/builder/bobneumann">bobneumann</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/drill-bit'>drill bit</a>, <a href='https://www.homemadetools.net/tag/cutting'>cutting</a>, <a href='https://www.homemadetools.net/tag/hole-saw'>hole saw</a>, <a href='https://www.homemadetools.net/tag/plate'>plate</a> </div> </div> </div> </div>
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I went through a bunch of several name brands that all stripped the threads on that screw-in arbor. I finally removed the pins from one and put bolts through and tightened well.
These were 4-1/4" saws.
good vid,, i worked in the machine shop at a plant that made tilted gravel shaker units,we made the sides from 3/8-3/4 plate,, we clamped them together and tack welded them..then used starett hole saws ,, we never drilled a chip hole in the side,,most chips came out in long strings, we just pulled out the hole saw,an blew out any remaing chips and kept on sawing,,ran the radial arm drill press lowest it would go 60 RPM.. i think,,good vid but it ran over 10 min and u did not mention your RPM u ran at, so heres your Sam Kinison award,,,OOOOOH,OH,OOH,OOH,OOOOOH,OOH,OOH ,OOOOOH !!!!!
Hate to burst someone’s bubble but this short cut has been around for a long time.
That's an excellent tip that many of us have never seen before! Just ignore the toxic negative comments.
While I agree the tip has been around for a long time, it doesn't hurt to be reminded of useful tips from time to time either.
I also stand with previous comments about the importance of using low RPMs.
I will also add that using a lubricating coolant when ever feasible is equally as important as the low RPMs especially for increasing the longevity to the cutters.
As far as being brand agnostic goes we might as well be as probably many of the name brand cutters are most likely made by 2 or 3 manufactures and privately labeled
Having said that whenever possible I do prefer to buy hole saws with brand names after band saw blades instead of power tool names, which may or may not be any better or any different than the power tool names as well.
Thanks for this great tip. As far as I am concerned, this one tip justifies the annual subscription fee.
It is new to me so MUCH appreciated. I'm off to my shop to try it out.Quote:
Originally Posted by mdhatter3
Rick
Thanks for this one. I have been working steel for many years and did not know this tip.
Great tip, I too have been a toolmaker for decades, never heard of this trick.
Granted, I had at my disposal some serious machine tools and seldom used hole saws.
Now that I don't have big machines to use this will be handy to know.
Thanks for sharing.
There is a vast difference between an idea being "around a long time" and being known by a given person. Many times I have struggled with a problem because I didn't know the key words to use to search for the solution. I do often struggle with problems because I make do rather than even try to find a solution. This is especially true when I'm focused on solving one problem and do not want to be distracted by another.Quote:
Originally Posted by mdhatter3
I would love to see a list of machining tricks that have been around a long time.
Rick
I tried this technique in my shop and it worked perfectly. I've been using hole saws for many decades and only now have learned this correct technique! Of equal value is to think about where the material held in the gullets goes as I use saw blades like this. It is a valuable insight.Quote:
Originally Posted by rgsparber
Thanks Bob.
Rick
It's easy to say that a particular way of doing something " has been around for a long time ", but I'm sure that each of us DO NOT have the same circle of knowledgeable friends, nor do we all read or view the same information available. Therefore, it is unlikely that someone who " knows " a particular method or shortcut will be common knowledge to everyone. To assume so is just plain stupidity.
It's difficult to recommend a collection of "machining tricks" since the audience for such a thing differs so widely in their relevant experience. What's revelatory for one guy is old hat for another.Quote:
Originally Posted by rgsparber
With all that said, I'll mention (please don't equate "mention" with "recommend") a few things that might bear further investigation...
This book...
https://www.amazon.com/Machine-Trade...s%2C219&sr=1-2
has lots of good information. Sadly, I think it's overpriced for its contents but that has a lot to do with my level of experience, YMMV.
The four volume set of Gunsmith Kinks...
https://www.amazon.com/Gunsmith-Kink...s%2C221&sr=1-1
is obviously aimed at the gunsmith trade but does include things of a more general nature. Again, I think overpriced for what the typical homeshop guy might get out of it but, again, YMMV.
The best advice is to find a library where you can examine these yourself and decide if they are for you. Local metalworking clubs or gunsmiths may have copies they would allow you to leaf through.
I would not say “stupid.” It is more like a lack of empathy.Quote:
Originally Posted by funforall 69
People often throw out the term “common sense.” Often, the implied understanding is neither common nor easily reasoned out.
Rick
Thanks for the recommendations. One that I re-read often is "Practical Ideas... for Metalworking Operations, Tooling, and Maintenance" by the editors of American Machinist from 1968. I would not be surprised if very few of the great tips in each of these books appear in other books. There are just too many great ideas in this world.Quote:
Originally Posted by mklotz
Rick
Indeed, exceeded only by the number of bad ideas.Quote:
Originally Posted by rgsparber
Good one Marv!Quote:
Originally Posted by mklotz
Personally I sometimes delve into this page: Geometer Workshop Hints and Tips
most often without any particular need, rather just checking out methods, suggestions and tools.
Attached is a pdf with all tips and tricks in subject order: Attachment 39632
Then, I try to adapt these in how I would go about these with my limited (material and intellectual) resources.
This is (in my walk-in closet workshop) a most rewarding exercise in itself, but occasionally I actually do something.
This might seem like a complete waste of time,
but I've come to realize that some of these "how-to" ideas pops outta the back of my head
when I have to wing something "quick, dirty and operational" with available stuff together at work.
Thus - the "how-to" is unconsciously at disposition, and just the try-outs can proceed at full speed, saving time for corrections.
2 cents, and hope somebody will find them useful.
Johan
Frank Ford, a luthier working in Palo Alto, has documented many ingenious ideas and tricks that are useful well beyond the area of musical instrument repair...
FRETS.COM Machining
Congratulations bobneumann - your Steel Plate Hole Cutting Method is the Homemade Tool of the Week!
A clear winner this week, and this easy money saver is reminiscent of the classic "one weird trick" internet ads:
https://s3-us-west-1.amazonaws.com/h...el_hole_ad.jpg
Some more good builds from this week:
Boring Bar Holder by Frank S
Tap Wrench by diyfixman
ER40 Collet Chuck by ttmrj
Bell by katy
USB Cable Corral by rgsparber
Wheelbarrow by Kwandotechnic
Table Saw Fence Modification by tiger carpenter
Lathe Cross Slide Ways by Claudio HG
Clamp by orioncons36
Disc Sander by h7eh7e
Bar Clamps by Dr.Al
Planing and Edge Jointing Jig by e_m_maker
bobneumann - we've added your tool entry to our All Homemade Tool of the Week winners post. And, you'll now notice the wrench-on-pedestal award in the awards showcase in your postbit, visible beneath your username:
https://www.homemadetools.net/forum/...OfTheWeek4.pnghttps://www.homemadetools.net/forum/...eWeekIcon4.png
And, you'll be receiving a $25 online gift card, in your choice of Amazon (US-only), PayPal, or bitcoin. Please PM me your current email address and award choice and I'll get it sent over right away.
Nice work! :thumbsup:
this is amazing to me. I have used this method on pinus sp. (sappier than Ausie hardwood) for many decades but was totally unaware of it being useful on steel. I really like this!
cheers
Quote:
Originally Posted by madokie
I’m with you....longwinded & not enough REAL info.
At you madhatter and agree with you rgsparber. Might be an old trick but there are plenty of old and new dogs out there learning old tricks every day! This concept is excellent and "one weird trick" meme, while it almost made me gag a little, was a refreshing use of it! not weird though, concept-extending, not weird.