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Member postings for Bowber

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

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Thread: Safety
28/11/2009 12:40:23
Sorry posted the last before I had finished.
 
I was going ot say:
But is it any safer, there are still 1000's of people a year dying in motor accidents, pedestians killed crossing the road etc.
I'm a motorcyclist and I can tell you the roads are getting worse for us, I have to watch every move and every car as I can have a near miss daily and I live in Cumbria!
 
On a workshop safety note, never trust the clutch on an ex industrial lathe, they are usually getting quite worn by the time we get them and can and do jump back into drive.
I always drop into neutral as well on my Harrison by shifting the range change into the middle.
 
Steve
28/11/2009 12:32:39
The comment about sending people back in time to see how hard things were in the 40s & 50s can of course be applied at any time in history, we could send them back 2000 years to the peak of Roman rule, or pre history!
 
However you are right, each generation has things slightly easier on the whole.
 
Steve
26/11/2009 20:57:36
You beat me to it David.
My kids are right this moment playing their latest kill em computer game complete with all the usual visual treats that come with it.
When me and my mates played army games it hurt when some one threw a stone at you or shot you with their catapult.
 
In some respects I'm lucky as my youngest is quite practical and has already investigated such things as the joys of slipping with his pen knife, I had told him to always cut away from himself and others, he now does!
And now he's starting to want to use the lathe and milling machine so I suppose all the guards will have to go back on
 
Steve
Thread: true Space
25/11/2009 16:31:04
Alibre 11.2 will run on windows 7, you just have to alter the program settings to run in compatibility mode for Vista.
 
I've been reading the latest issue and I have to say that I'm very impressed with the results Linton is getting with Truespace, I still wouldn't use it but it shows what a bit of ingenious thinking can do.
 
I do tend to fiddle quite a bit with Alibre (the std £99 one) and I like being able to model a part and produce an A4 dwg that will alter as the model is modified. I tend to get it wrong first time as I forget some important hole or part etc.
Also the stl files are good for 3D milling on a CNC.
 
Steve
Thread: Safety
24/11/2009 12:09:41
My friend just told me that there had been a report of accident rates increasing on building sites as workers are expecting things to be safe (because of health & safety laws) so their not taking the necessery precautions.
Don't know how true it is but I can see the logic.
 
Steve
Thread: true Space
18/11/2009 23:46:05
We were initialy taught the absolute method in Acad R12 at collage but then it moved onto relative etc.
I now don't bother with any of it and just start with a box or round or just 2 construction lines and start offsetting, it's how I'll mark out the part anyway.
I use CMS Intellicad now, kind of a Acad clone and I use it for all sorts of things, I have really bad memory so I can never remember my trig formulas, no problem I just draw it and measure the angle (batteries usually flat in the calculator as well)
 
I've also been looking at Truespace and quite honestly after 10 mins with it gave up, Alibre xpress is far better for 3d design of parts but I hear the 2D drawing export hase been crippled, pity.
 
Steve
Thread: Metric vs Imperial - Practical or Traditional?
17/11/2009 20:41:12
I set my dimenions to remove trailing or leading zero's and "chasing thous" is only a case of sticking to the tolerance.
So if I dimension something that's 25.00mm it shows as 25mm and if the part only calls for 0.1 tolerance then that would be set in the dimension settings so a part measuring 25.01 in cad will be dimensioned as 25mm.
I still think drawings should be decimal, I don't have any measuring equipment that measures in fractions their all decimal so one less calculation to make (or looking at a chart)
 
Steve
16/11/2009 21:44:27
I use metric mainly but I'm also a self employed sign maker and commonly have to measure stuff while up a ladder so remembering whole numbers is much easier so I may measure something as 3ft X 500mm, just easy to remember.
Engineering wise I use metric for everything, and as for remembering that 17/32 is 0.53125 no thanks.
As for Radians, well I used them at collage, I may have even used them in calculations but I've never seen them on a drawing and that is what this discussion started as wasn't it?
The US train industry used mm as their tolorance was 1mm, this stopped miss reading any decimal points.
At the end of the day it's just what your used to.
 
Steve
 
P.S. I do think that all drawings should be decimal, be they metric or imperial.

Edited By Bowber on 16/11/2009 21:49:17

Thread: Ignition coils for small engines
16/11/2009 20:28:06
Hi
 
Just a little extra info on the different coils off bikes.
Battery and coil, with points or electronic control, use the points opening to collapse the field when the points open, this uses the battery voltage.
The other is energy transfer, magnito and CDI, and these tend to work at much higher voltages. CDI usually operates at 300 volts.
So make sure you get a coil from the 1st type as you won't get the secondery voltage from just a 12v battery.
 
Steve
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