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Member postings for blister

Here is a list of all the postings blister has made in our forums. Click on a thread name to jump to the thread.

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Thread: A Challenge - How Would You Machine This Part?
19/06/2011 21:32:15
Posted by Andrew Johnston on 19/06/2011 19:20:30:
Phil: You won't get any rude comments from me; if you don't want to use CNC that's fine by me.
 
Andrew,
I can't for the life of me find where I wrote that I don't want to use CNC's. It's odd because I find them fascinating and shall continue to harrass my boss to get us one. In the meantime I will continue to learn as much as I can about them.
You may have missed my point.
 
Regards,
Phil

19/06/2011 00:18:09
Hi John,
are you saying that if you 'did' just have one to do like most of us 'Model Engineers' as opposed to 'Production Engineers, you would not bother, or would it be a challenge to figure out the best possible way to get the job done, 'one off ' as we quite often have to. The point being that excercising the mind to achieve success is better than "dumbing down" and letting the machine think for us.
 
ps I don't believe you own at least (according to the photograph) 11 racing motorcycles or is that 'paid work' as opposed to a hobby.
 
Kindest regards,
Phil
18/06/2011 20:43:44
Posted by Anthony Knights on 08/06/2011 18:46:11:
According to Mr Stepenson all you need to do is create an image in a suitable computer program, send this to your CNC machine, and it will churn it out for you. How interesting. I really love sitting in front of a computer screen. I suppose the next technological advance, will be to have a robot which assembles all the bits which your CNC machine makes. You can then spend even longer on the computer making assembly drawings.
The ultimate techological advance will of course be the Virtual Engineering Workshop.
Put on the suit and helmet, choose all the machinery you would love to own but can't afford and away you go. Four years to make a model traction engine? With this program you can make one in the morning and drive it in the afternoon.
Before anyone else say it, I've probably watched "The Matrix" too many times.
 
 
Well said Anthony,
I don't think those comments are from watching 'The Matrix' too many times but from seeing what a CNC can do. The way engineering is going at the moment, the greatest skill required in the future will be song selection on your Ipod and the safe insertion of earphones into your ears while you watch the relevant machines 'pump' out a model for you. I can only imagine the sense of fulfillment in a job well done when we go down that path. I guess I am a bit 'Old School' but can remember scoffing at the older machinists when I was an apprentice who would try to impress on me that the only way to machine with any skill was by using internal and external calipers. Funny thing is I use calipers at work for demonstration purposes to show people "How it used to be done". I guess in the not too distant future someone will be demonstrating machining without using a CNC
 
Yours
( in anticipation of a tirade of vehement harangue from the CNCers)
Phil
Thread: Model Engineer Reader's Survey
10/06/2011 11:10:40
Thanks David (Clark),
I will print the survey out, fill in the relevant questions, then scan and email the results as in australia we wont be receiving the hard copy for a cpouple of months yet and the survey would probably be finished and the results collated. Aah, the Tyranny of Distance.
 
Hi Jasonb,
you wrote
"If people feel that strongly about being able to complete the survey why not print it off, fill it in and send a scan back to David by e-mail."
I will be doing that anyway. My point was the validity of the questions not relevant to us overseas subscribers.
 
Regards,
Phil
09/06/2011 21:26:06
HI David,
I was wondering if there is another survey for your overseas subscribers. Surveys reach their maximum potential when they are filled out in their entirety. Living in Australia, I probably won't be attending any of the model engineering exhibitions you have enquired about and if I did you would have to include jet as one of the public transport options. There are other questions not relevant to overseas subscribers as well so I was wondering if it is because we are only a small number and not considered to have much of an impact on the format of MEW. Kind of like paying for the subscription after looking at the special subscription offer then reading that it is not available to overseas subscribers...but we have still paid for the subscription and I can assure you I will be paying it again when they are due next year. Am getting tons of information, tips and ideas.
Hope I am not being too harsh as I noticed you get a lot of flack on here and that is not my intention
Regards,
Phil
Thread: measuring hole centers
05/06/2011 12:27:27
Hi Richard,
the way I normally do this is to machine a point on the head of two bolts, normally at an included angle of about 60 degrees. Depending on the accuracy required you could machine a shoulder screw as Sid suggested and open up a split die to cut an oversize thread and turn the point on the other side of the shoulder. Screw the bolts into the threaded holes. Using a piece of soft material like copper or brass and sometimes even a relatively hard piece of wood that will span the two bolts and put a light centre punch mark up one end. Place the centre punch mark on the machined point on one of the bolts and the other end over the other machined point. Give a slight tap with the hammer to the latter mentioned end to make an impression in the softer material. Measure the two indentations either with a set of trammells or straight off a steel rule, depending on the accuracy required. this method also works well on threaded bolt holesof different diameters.
I hope this has been helpful and not too confusing
 
Phil
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