02-15-2016, 11:13 PM
PD, I did not see your reply the other day when you posted it due to the limited time posts are on the forum home page. I do not know if you are trying to defend 7GD or what, but as a manufacturer, I know manufacturing and he is no manufacturer.
I do not know every manufacturer's ability, knowledge, or what machinery they have access to, but in this case to make this product efficiently and cost effectively, one needs to do Wire EDM - see the Wikipedia link for details (https://en.wikipedia.org/wiki/Electrical...achining). If my company were to do manufacture these sprockets with our CNC machines, they would cost into the 4 figures each for T&M. Hence that is why a dedicated wire EDM manufacturer that has the templates is the way to go and I choose not to do it myself.
Regarding my post "After looking at the 37T, I realized a 35T is impossible. It will never fit/attach", I was not trying to get deeply specific because some get "headaches", but if you look at the picture, I drew an arrow to the inside edge of the Q5 nuts that attach to the wheel studs. There is less than a SINGLE mm clearance. If the sprocket was reduced to a 35T the edge of the nuts would be over an open area of the sprocket that would eventually leading to sprocket failure due to uneven loading on the sprocket surface!
I did contact Azusa Engineering before 7GD, but there were internal differences on wanting to manufacturer sprockets in steel. I kept looking and came upon your post. I wish I hadn't. Regarding him being a designer, 7GD was to do a 35T and DIDN'T, because IMHO he had no idea how or Azusa didn't, or they agreed a 35T was not viable. I never received a 35T. He had Azusa ship me another 37T like yours.
"The recessed portion is for clearance for the flange nut - it has no bearing on the strength or function of the sprocket. If the recessed area overlapped the center hole, not a problem at all, so a 35T, or less, is easily possible. This should be obvious to anyone looking at it. This, along with your prior comments and questions on chains, all makes me question how you are qualified to criticize someone else who is a designer." I don't think you understand the mechanical engineering and stresses involved (explained above) from your reply. In no way am I trying to upset you personally, but I am significantly qualified and he is a ________!
I do not know every manufacturer's ability, knowledge, or what machinery they have access to, but in this case to make this product efficiently and cost effectively, one needs to do Wire EDM - see the Wikipedia link for details (https://en.wikipedia.org/wiki/Electrical...achining). If my company were to do manufacture these sprockets with our CNC machines, they would cost into the 4 figures each for T&M. Hence that is why a dedicated wire EDM manufacturer that has the templates is the way to go and I choose not to do it myself.
Regarding my post "After looking at the 37T, I realized a 35T is impossible. It will never fit/attach", I was not trying to get deeply specific because some get "headaches", but if you look at the picture, I drew an arrow to the inside edge of the Q5 nuts that attach to the wheel studs. There is less than a SINGLE mm clearance. If the sprocket was reduced to a 35T the edge of the nuts would be over an open area of the sprocket that would eventually leading to sprocket failure due to uneven loading on the sprocket surface!
I did contact Azusa Engineering before 7GD, but there were internal differences on wanting to manufacturer sprockets in steel. I kept looking and came upon your post. I wish I hadn't. Regarding him being a designer, 7GD was to do a 35T and DIDN'T, because IMHO he had no idea how or Azusa didn't, or they agreed a 35T was not viable. I never received a 35T. He had Azusa ship me another 37T like yours.
"The recessed portion is for clearance for the flange nut - it has no bearing on the strength or function of the sprocket. If the recessed area overlapped the center hole, not a problem at all, so a 35T, or less, is easily possible. This should be obvious to anyone looking at it. This, along with your prior comments and questions on chains, all makes me question how you are qualified to criticize someone else who is a designer." I don't think you understand the mechanical engineering and stresses involved (explained above) from your reply. In no way am I trying to upset you personally, but I am significantly qualified and he is a ________!