HOME SHOP JIGS & FIXTURES PART 5, MACHINING A PLATE FIXTURE, SHAPER, DRILL PRESS & ROUND COLUMN MILL
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- Опубликовано: 10 мар 2022
- Fifth video initiating novice or home machinists to jig and fixture design. Jigs and fixtures are simple and effective tools that can increase productivity in the home shop when identical multiple parts must be produced. More specifically, this video looks at machining a plate jig using a shaper, a drill press and a round column mill. Increase part accuracy and increase the rate of production while using existing tools, why not!!! As for all THATLAZYMACHINIST videos, this video is produced for novice , garage or beginner machinists. You can find all my videos as well as project drawings and course notes on my website THATLAZYMACHINIST.COM
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Also of interest with this video:
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HOME SHOP JIGS & FIXTURES #2, preparing the blanc parts • HOME SHOP JIGS & FIXTU...
HOME SHOP JIGS & FIXTURES #3, work holding & positioning • HOME SHOP JIGS & FIXTU...
HOME SHOP JIGS & FIXTURES #4, milling the pocket • HOME SHOP JIGS & FIXTU...
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Thanks for understanding that I am a professional toolmaker and teacher but I am not a professional video producer (and it shows). I produce these videos for fun as a little retirement project that lets me give back a little of what was passed on to me by so many amazing trades people most of whom, sadly, are no longer with us. Marc L'Ecuyer Thatlazymachinist.com
Thank for all your videos you are the one machinist that learnig people should go to, sorry about your illness, wish you the best.
Really glad to see you posting new videos, always chock full of good info and technique and very helpful.
I am so immature,
now I feel like the luckiest old man around.
Who knew?
I always love your sign notes in the background.
I love this guy. In a manly way
Hi Marc. Great video as per normal. Thanks for the tips 🍻Aaron
Excellent point about boring before reaming. If everything is +/- 0.005" then drilling and reaming is generally good enough. When features have to be closer than that then drilling and reaming is a crap shoot. Like Marc says, the reamer will follow the hole and if you are using jobber length drills it is liable to wander a little.
Another problem encountered is the reamer following an off-target hole will cut a tapered finished hole that is also slightly out of round. This is the reason floating reamer holders are used. They prevent taper but are no help in the final location of the hole. When you start working in the +/-0.001" realm this all becomes important.
In machining there are lots of ways to skin a cat. With care it is sometimes possible to get good results and avoid normal machining procedures but generally if you are doing close work:
1. Twist drills make holes. There's no guarantee the hole will be to size, round, straight, or in the correct location.
2. Reamers will make round, straight, and correctly sized holes on target ONLY if the pilot hole is round, straight, and on target.
3. A boring bar or boring head will make an existing hole round, straight, on-target, and to size (though finishing with a reamer as Marc is planning to do makes this last step quicker on a tight tolerance hole).
As others have said, I'm glad to see new videos from Marc. He has a very good talent for teaching. When asked about machining instruction videos his are on my short list to recommend.
Cheers from NC/USA
one more great series here Marc. Really enjoyable and seriously useful. Thank you sincerely, and take care!
Welcome back. It has been a long time. Gundoctor
Invaluable content as always. Thank you Marc!
An enjoyable episode Marc, thank you
Good stuff as always. Thanks Marc! :-)
Be safe and have fine with machining
thank you
IGood to see an occasional mistake, Makes me feel a little less bad when I make some.
Great content as always especially drilling holes accurately always found it challenging so i use a slot drill. Interesting about Maple syrup - how long does it take to get a pint?
hi,
haven't you told in a earlier part, that the only reference corner is the upper left one?
in this video at 7:08 you put the screws on the left and the lower side of the jig.
to press against the upper left corner, the screws must on right and lower side, mustn't they?
thanks and cheers
Matthias
Ok, sorry in 11:30 you corrected it.
I have the same round column mill as you have. Unfortunately, I was moving to a new house in the middle of the rebuilding the mill and lost the rack and pinion. Could you possibly tell me the specs on the rack so I can purchase a new one?
@ 0:18 Really Marc, Interrupting the teacher like that... so immature... ;)
Marc, if you can e-mail me (see my 'about' page), I'd like your assistance on a little 'thing' I'm working on !