Screws revisited

dusty · Post by **dusty** » Thu May 07, 2009 8:08 pm

beeg wrote:Lv2WdWrk no need to be sorry. I was just working with the facts as stated.

Except that you paid a $1.00 more for the screws than everyone else. You paid $26.00 for the $25.00 special.

JPG · Post by **JPG** » Thu May 07, 2009 8:44 pm

fjimp wrote:And I thought Dusty was finally going to solve that one for me. I never have managed to get my simple mind around the train thing. fjimp:p

Let D = initial distance apart
Let d1 = distance train 1 travels ------- Let d2 = distance train 2 travels
Let r1 = speed train 1 travels -------- Let r2 = speed train 2 travels
Let t1 = time train 1 travels ------- Let t2 = time train 2 travels

The distance the trains travel is d1 = r1 X t1--------d2 = r2 X t2

Rearranging, t1 = d1 / r1 ------t2 = d2 / r2

For this problem t1 = t2 (they travel the same amount of time)

For this problem d1 + d2 = D (the total distance traveled by both trains)

For this problem r1, r2, and D are known. Lets use r1=50mph, r2= 10mph, D= 100 miles.

Since t1 = t2 then substituting d1 / r1 = d2 / r2

Rearranging d1 / d2 = r1 / r2

Using the values for r1,r2 given, d1 / d2 = 50 / 10 = 5

rearranging d1 = 5 x d2 or 5d2

Substituting for d1 in [d1 + d2 = D] 5d2 + d2 = 100

then 6d2 = 100 or d2 = 100 / 6 = 16 2/3 miles

since D = d1 + d2 then 100 = d1 + 16 2/3

then d1 = 100 - 16 2/3 = 83 1/3

since d1 = r1 x t1 then t1 = d1 / r1

t1 = (83 1/3) / 50 = 1 2/3 hour

as a check, t2 = d2/r2 (16 2/3) / 10 = 1 2/3 hr it checks

This is a simple high school algebra problem! Give todays kid credit. They are coming up in a different world.

Ed in Tampa · Post by **Ed in Tampa** » Wed May 13, 2009 10:23 am

Got my Mcfeely catalog.

Wow they sure like their screws judging by the price they charge.

The catalog is great and as someone mentioned it has great charts, advice and bits of wisdom scattered through it.

One graph I found interesting was the force needed to snap a screw. They compare their screws to "Big Box Store No Name" screws. In some cases the no name broke at less than half the torque needed to snap the same size Mcfeely screw.

Another thing that caught my eye was the praise McFeely heaps on Kreg screws. I really like Kreg screws and to read what they say about Kreg screws confirms me that problems I'm experiencing with other screws is not mine but rather the poor quality screws flooding the market.

I need the study the catalog a little more before I place any order, like I said they ain't cheap.

curiousgeorge · Post by **curiousgeorge** » Wed May 13, 2009 11:25 am

Quality never is cheap!

beeg · Post by **beeg** » Wed May 13, 2009 12:05 pm

curiousgeorge wrote:Quality never is cheap!

Sorry but I think quality is cheaper then a cheap buy.

dicksterp · Post by **dicksterp** » Wed May 13, 2009 12:26 pm

Reminds me of a saying a boilermaker told me when I worked boiler repair in the sixties during college regarding tools. "You can buy cheap and buy often, or you can buy quality and buy once."

JPG · Post by **JPG** » Wed May 13, 2009 12:42 pm

dicksterp wrote:Reminds me of a saying a boilermaker told me when I worked boiler repair in the sixties during college regarding tools. "You can buy cheap and buy often, or you can buy quality and buy once."

One also tends to 'Take Care' of the 'Quality' ones. It has NOTHING to do with relative cost!:)

fjimp · Post by **fjimp** » Wed May 13, 2009 5:05 pm

I still remember the Fram Oil Filter ad of many years ago. A car with a blown motor and a puddle of oil under it in the background and a mechanic holding a Fram Oil filter saying "You can pay me for protection now or pay me more later? The message being buy a quality filter now for a little bit more money or pay me a great deal of money for a new motor later.

I am pleased with McFeeley screws. It's fun to build something right the first time. I hate having to disassaseble and repair later due to inferior screws. The tips and facts in their catalog are truly solid info that can save one a lot of time and money. fjimp

Ed in Tampa · Post by **Ed in Tampa** » Wed May 13, 2009 7:45 pm

Hey I understand you get what you pay for and I understand quality comes with a cost but I compared costs a little. Since the only thing I knew Mcfeely sold that was also marketed by others is Kreg screws so that is what I used.
Example
#8 2 1/2 coarse thread 250 count
Mcfeely -- $19.99
Sears -- $17.99

#8 1 1/4 coarse thread 100 count
McFeely -- $4.55
Hartville Tool -- $3.99

While this is only two examples what I found is they are fairly representative of the price differences I found.

What I found was Mcfeely was charging between 11 -16% more than others. I don't mine paying for quality but I do mind paying more at one place when the same product is available at another for less.

The difference I see in the prices of Kreg screws makes me suspect that perhaps they charging more than the "increased quality" warrants.

dusty · Post by **dusty** » Wed May 13, 2009 8:28 pm

Ed in Tampa wrote:Hey I understand you get what you pay for and I understand quality comes with a cost but I compared costs a little. Since the only thing I knew Mcfeely sold that was also marketed by others is Kreg screws so that is what I used.
Example
#8 2 1/2 coarse thread 250 count
Mcfeely -- $19.99
Sears -- $17.99

#8 1 1/4 coarse thread 100 count
McFeely -- $4.55
Hartville Tool -- $3.99

While this is only two examples what I found is they are fairly representative of the price differences I found.

What I found was Mcfeely was charging between 11 -16% more than others. I don't mine paying for quality but I do mind paying more at one place when the same product is available at another for less.

The difference I see in the prices of Kreg screws makes me suspect that perhaps they charging more than the "increased quality" warrants.

Woodcraft #8x2 1/2 250 count $19.99
Woodcraft #8x1 1/4 100 count $ 6.99

I bad mouthed Hartville a while back - maybe I need to rethink my position.