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Is it just me!!!

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StirlingSingle13/02/2011 16:28:58
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40 forum posts
Hello,
 
I am fitting the slide bars to my loco, whilst trying to pack things out and try and get things paralell I thought am I the only one who producing far from show quality work.
 
I have learn't so much in the last five years, whilst also working and looking after the family, but I do feel I am fighting a loosing battle. Eventually all my 1/4" accuracy is going to catch up with me and end the project!! Still I am enjoying the learning, and I do that by making countless mistakes.
 
Anyway, how long did it take other members to become good and how many abanded projects have there been!!
 
All the very best
Nicholas Farr13/02/2011 18:17:12
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3988 forum posts
1799 photos
Hi StirlingSingle, I'll doubt you are alone, and as far as abanded projects, I've had many, (not all in ME though, some have been at work even) my late farther started an LBSC loco before he met my late mother and it is still not finished. I don't think it's so much because of time consuming but time availability, as you say yourself working, family, shopping ect. Becoming good is really an on going thing, I've been in engineering all my working life and am still becoming good, or moreover better. I think we can all feel we are fighting a loosing battle, because just as we think we are getting ahead, something else needs more attention.
 
But as long as you still enjoy what you are doing, getting to the end or winning dosen't really matter, dose it!
 
Regards Nick.
mgj13/02/2011 19:40:21
1017 forum posts
14 photos
I haven't abanonded projects . Last job was a traction engine which took 3 years to complete. Some bits are not quite as per drawing, but they work after adjustment.
 
Now Im working on Metre Maid. That ran on air last night, and is now much looser. she strated second flick. That took 7 months.
 
Time to get good?- like nick. I've been munching metal for 25 years, and I have a way to go yet.
 
Define good of course. Does good mean being able to make to drawing (almost) all of the time first time. does it mean a good functional machine or model. Or does it mean exhibition quality. Or does it mean understanding what one is doing?
 
Personally I have no interest in exhibition models - I like looking at them and I recognise the effort, but I wouldn't even look at going that road. I want a nice functional good looking decently engineered and finished machine that gives me pleasure. Is that good, or just good enough?
 

 

ady14/02/2011 06:59:20
612 forum posts
50 photos
I would think that the more you do the better you get, since you will build a collection of jigs and tooling to overcome all those hurdles that everyone runs into when they do something for the first time, plus you will have an ever increasing level of experience.
 
The more you do, the more of a production-line mentality you obtain to increase you work-rate and your success-rate.
 
Whenever you do a model engine for the first time you are in a similar position to the professionals who built items like Concorde or the Apollo programme.
 
The first effort is always a prototype, a bespoke effort which exists on paper but you have to create a working reality of the paper theory.
 
Concorde is a great example.
It over-ran by huge amounts of money, I recall one politician saying that they simply stopped counting how much was being chucked at it to get the first one into the air.
 
So the professionals often have the same problems on a bigger scale, how much government stuff has overrun by millions and been YEARS behind schedule?
 
This guy makes one eentsy weentsy diesel engine, check out the setup he has just to achieve a reasonable production rate with a decent accuracy.
http://modelenginenews.org/pb/index.html
Clive Foster14/02/2011 17:57:37
3630 forum posts
128 photos

Well a 5 year apprenticeship is around 8,000 hours after which "right to drawing - fast" is expected and normal. Model Engineering needs most of the skills taught to an apprentice but you don't need the speed and "close to drawing then adjust to fit" will usually do. Although its surprising how soon some speed and decent accuracy comes with regular tasks.

So its fair to expect it to take a while before you are happy with your skills and work rate.

Biggest handicaps for the home shop lone hand are:-

1) having no one to show you "right now" when you can't get a decent handle on a job or process so "educate yourself" means taking a few wrong turnings and often settling in the "hafta do" cul de sac making hard work of what is a simple job if you only knew the right way.

2) having to learn how to set up your lathe and other machine tools as you go so its hard to tell if problems are due to your undeveloped machining skills or set-up inadequacies. Hardest thing is to get a handle on how much cut is right. Far too many people resort to baby cuts to get round set-up or wear problems.

Ages back I had a Pools Special lathe with which I could "eventually" get decent results. Guy I sold it to bought an expert adviser with him who looked the lathe over, pronounced the my rebuild and adjustments good then asked if he could take a test cut off the rather nibbled bit of steel residing in the chuck. I agreed but said the material seemed too tough for the lathe. After trying a very short cut with my tool he said it needed a touch up. About three seconds on the grinder made no difference that I could see but on replacing the tool he promptly took a 1/8 inch ish cut leaving an excellent finish! I'd always figured that 20 thou cut was going well in steel! I got the asking price though, which did soothe the ego somewhat.

Clive.

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