Model Engine Maker
Supporting => Engine Ancillaries => Topic started by: Steve Crow on April 01, 2021, 04:13:25 PM
-
I got a few samples of M1.2 screws for a project and wasn't happy with the quality or material so I decided to make my own. I would have to turn down the head and shorten commercial screws anyway.
It went a lot quicker than I thought. Once I had worked out a "mass production" method I made around 40 ( I need 80+) before running out of silver steel. That took about 6 hours workshop (kitchen table) time.
Here is one on a penny.
(https://www.model-engineer.co.uk/sites/7/images/member_albums/163849/891694.jpg)
This is unfinished - it still needs chamfering, polishing and blueing.
I'm quite happy with the result.
Steve
-
Very nice! And tiny. How did you cut the threads, single point on lathe, die?
-
Great work! If you can make your own hardware you can build anything. What did you use to cut the slots? I've used a jewelers hand saw in the past but I'd like more consistent results.
I made the ones shown below to restore a clock several years ago.
Eric
-
Nice. I bought a bunch of hex stock awhile back, and plan to use it making hex bolts and nuts for various projects.
-
Being able to make my own bolts, nuts, washers, etc. is, I'm not sure how to express it, 'the ultimate?', 'symbolic?'. Certainly satisfying.
It's part of "I have a shop! I can fix things! I can create things! I can put things together! Perhaps more than making any other part.
And I don't have to wait for an order or go to the store and buy a dozen when I need one.
P.S. I use a slitting saw to cut the groove. At least, so far.
Nice job Steve. Good post.
-
Nice work!
When you've got some turret lathe stuff it creates a strong compulsion to make fasteners. :). They take forever to set up, including making lots of tooling, but when they are ready, man can they crank it out!
I make my own fasteners, sometimes, if its not available, a long wait or I feeling particularly cheap (all too often!). The formulae for a good model engineer might be a decent machinist with a dogged determination to survive tedium. Spent all last weekend making little valve parts, 30 sets. Extremely tedious but I'm still here so I must be getting better at model engineering :)
-
Very nice! And tiny. How did you cut the threads, single point on lathe, die?
I bought a Russian made M1.2 thread roller on ebay for £13.01 inc. postage from St. Petersberg. Fantastic value for money.
Steve
-
Nice work Steve. Very satisfying when you can make your own screws and nuts, especially at such small scale.
-
Very nice work. I am envious!
Ron