Talk:Rotating tie rack

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Revision as of 03:40, 14 February 2007

We received your report on the rotating tie rack, and we were very impressed indeed. Your analysis was clearly very thorough, and your report is well documented. You also came up with a few opportunities for improvement that can help us out. Details follow:

• You suggest reducing the number of gears – how feasible is this? Fewer gears would require larger gears, right? Would the size fit, and would costs stay low?
• The belt is an interesting piece. Do you believe it was constructed as a loop in the injection molding pieces, or was one end fused to the other afterward to form the loop?
• Why do you suppose a belt is used to connect the motor to the geartrain instead of mounting one of the gears directly on the motor?
• You suggested substituting a higher torque motor to deal with possible failure of the geartrain – we’re not sure how this would help.
• Do you have a feeling for how long the batteries would last and whether a customer would be dissatisfied with the frequency of changing batteries?
• You’ve found some interesting opportunities, including speed variability, the difficulty reaching belts through the ties, and the separate light bulb switch. Because you mention the need to increase battery life, we might suggest looking at LEDs.
• We appreciate your careful referencing of part numbers in the discussion.
• Does the light only work while in motion? Does this cause difficulties for low light situations, especially if the rotation is too fast?
• We appreciate the well documented assembly
• Your DFMA analysis is quite thorough – we are very impressed.
• Your FMEA analysis appears to have a few bugs. Also, we were surprised not to see an item for a possible belt jam. Some customers have reported problems when a tie or a belt hanger becomes snagged on other closet items.
• Your DFE analysis is also very insightful, and we appreciate the details in your preliminary LCA sketch.

Additional Components

While highly impressive, the massive amount of information renders the page very long and a little cluttered. It might help the page if a few of the larger tables were transfered to separate pages.