Drill bit maker. By INNOVATION TIME. 9:36 video:
https://www.youtube.com/watch?v=JUEzTeC-XUU
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Drill bit maker. By INNOVATION TIME. 9:36 video:
https://www.youtube.com/watch?v=JUEzTeC-XUU
Why would anyone want to do this? Limited drill bit diameter, no proper drill bit taper and no guarantee of straightness.
seriously. why. unless U live in the middle of BFE.
This must be one of the most senseless endeavours ever. Surely drill bits are not all that expensive, even in India.
I think it would depend entirely on how badly you need a drill bit in a size you don't already have. Particularly if you need it today, and your supplier is days or weeks away. I've lived most of my life in the 1st World, but I've lived in a couple of other places, too. If you need something bad enough, and are handy enough, and have a few tools, you can always make more. Yes, it is easier to to buy and have something shipped in. IF you can wait that long. From my own experience, I've seen Turks and Moroccans make stuff with bits of scrap that most machinists in the US would just send back for recycling or even just trash get used to make tools and equipment they needed.Quote:
Originally Posted by Hans Pearson
Bill
Would make more sense to use all that shop time to make a boring head.
Sure, if you need big holes. How about smaller holes? I remember, long ago, some one showing how to make small drill bits out of music wire. Mostly spade bits, which are not the best thing for drilling in metals, but there has to be a way to do it. I tried a search for "making miniature drill bits" and got lots of info on pin vises, but this was the only how they're made video I saw on tiny drill bits: https://www.youtube.com/watch?v=G55kLhv2d_4 Though I must admit I didn't look very far.Quote:
Originally Posted by mklotz
If I had a customer require precision holes that small, I'd be the first to sadly admit the task might be beyond my skill setQuote:
Originally Posted by WmRMeyers
Lots of very small boring heads out there. Commercial as well as DIY built...Quote:
Originally Posted by WmRMeyers
This boring head has a diameter range of 0.016" to 0.276".
https://www.mmsonline.com/articles/w...st-boring-head
Construction details included for this one...
https://homews.co.uk/page199.html
Of course, buying drills is far more practical than making them or building tiny boring bars. My quoted remark was sarcastic.
I guess I should have known Harold Hall would have plans for a miniature boring head! ;) The Kaiser boring head is also cute, but I expect it's way out of my price range! And I'm sleep-deprived, so probably wouldn't have recognized even mild sarcasm as such unless maybe it bit me.Quote:
Originally Posted by mklotz
I could claim I had that skill, but I'd be lying. I was looking for something in .5-1mm or so range, maybe. It would be relatively easy to make spade bits out of music wire in small sizes. They'd be good for light jewelry work, soft metals, shell and bone. Making anything like that to cut steel, probably not! Honestly, my desire to learn machining was a result of the step-father who expected Armageddon any minute now when I was 10-14. He was planning on living off the wreckage, where I wanted to be able to live better than that. He was raising my brother and I to be soldiers, and I wasn't all that interested.Quote:
Originally Posted by Frank S
Bill
I'll make it a point to make my sarcasm more biting next time. :-)Quote:
Originally Posted by WmRMeyers
I figure the 1 (one) watermelon my daughter grew this year probably cost around $30, and it was worth every penny for the experience of doing it.Quote:
Originally Posted by Peter Sanders
I don't ever see myself making drill bits this way, but knowing it can be done puts another tool in the toolbox.
Last time I grew tomatoes, we got one tomato. I figure that one tomato cost right at $300/pound. If someone else wants to try it, I'll let them, but I have proven to my (dis)satisfaction that I've got a black thumb, not a green thumb. :( Definitely agree about making drill bits. Not likely to do it, but glad to know how one could be made!Quote:
Originally Posted by Elizabeth Greene
Bill
Always interesting to see what people come up with but this should be titled "How to step over dollars to pick up dimes"