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Elmers #25, my first engine project
CrewCab:
Nice use of the various "thingie's" :thumbup: ............. perhaps we should have an appropriate ..... thingy ....... smiley
From the write up's it seems you are enjoying this engineering lark more and more as each day goes by .......... nice write up and nice work Tim.
--- Quote from: spuddevans on May 13, 2009, 01:18:08 PM ---I started out by sharpening my threading tool and spending 15-20 mins trying to single point 3mm 303 stainless for the con-rod. Deciding that beating my head against that particular spike was not fruitful :bang:
--- End quote ---
I've gotta say, after a brief venture into the dark art of "Single Point Threading" .......... for the few sizes I tend to use I find it much quicker and easier to use a tailstock die holder :bugeye:
However, I wait with trepidation to learn the error of my ways :scratch:
Dave ............. aka .......... CC
bogstandard:
I can smell a runner from here.
You and your self appointed newbie status has surely taken a beating this time, you are doing most of this stuff like an old hand.
Just get your materials together and knock one of mine out.
Bogs
spuddevans:
--- Quote from: bogstandard on May 13, 2009, 02:08:28 PM ---Just get your materials together and knock one of mine out.
--- End quote ---
I have already got about half the materials :thumbup: I will have a couple of inbetween projects to do though, I need to make a belt drive for my mill, and then a flycutter, and a few more little helpful bits.
But I'm getting ahead of myself, gotta finish this one off first. :dremel:
--- Quote from: CrewCab on May 13, 2009, 02:00:04 PM ---From the write up's it seems you are enjoying this engineering lark more and more as each day goes by .......... nice write up and nice work Tim.
--- End quote ---
I am, I really am :nrocks: :nrocks: :nrocks:
--- Quote ---I've gotta say, after a brief venture into the dark art of "Single Point Threading" .......... for the few sizes I tend to use I find it much quicker and easier to use a tailstock die holder :bugeye:
--- End quote ---
Actually I find single point threading quite enjoyable, and surprisingly not that difficult (except on stainless which is a real pig). I havent got any dies yet, got some coming in the post, and then I've got to make a tailstock die-holder.
If you think single point threading is difficult, in woodturning you do "thread chasing", this is done by hand and, on my lathe, the slowest speed was 200 rpm and so trying to shift the threading tool by hand and in sync is unbelievably hard. Then try doing this repeatedly about 6-8 times to completely form the thread, every time without messing up the existing threads, and at the end of it all you find that the newly formed threaded item is just slightly too small and you have to start over :bang: :bang:
Threading on an metalworking lathe is made so much easier with the leadscrew.
Keep trying, it's not that hard. (it cant be, I can do it :lol: )
Tim
CrewCab:
I've done a little single point threading, it's just I find it somewhat trial and error to get the depth correct, and with a metric lathe a threading dial indicator doesn't really work, so a bit like Bogsie's view of the independent 4 jaw chuck, life is too short .................. just my 2c worth mind .......... doesn't make it right
At the end of the day, if we enjoy what we achieve and swap a few ideas about then that's why we're all here.
CC
sbwhart:
--- Quote from: spuddevans link
[/quote ---
I have already got about half the materials :thumbup: I will have a couple of inbetween projects to do though, I need to make a belt drive for my mill, and then a flycutter, and a few more little helpful bits.
--- End quote ---
You've caught it, you've caught it, you've caught it
:proj: :proj: :proj:
You are doing well picking up, or working out the basics :clap: :clap: :clap:
A bogstandard engine is really on the cards.
Stew
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