Talk:Comparison of DIY Boards: Difference between revisions
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Phil questioned the cost values for the Ren-T and I double checked my BOM and I had both transformers listed. Took out the Tamura and that drops all parts in the BOM to about $20 and a typical Case 3 build down to about $18.75. Now of course anybody who decides to leave off the power entry module and AC cable can also save another $9 but that is not what I intended for the chart. The chart shows an '''''estimate''''' of what the listed BOM will run at Mouser. <br> Also, I tilted the estimate | Phil questioned the cost values for the Ren-T and I double checked my BOM and I had both transformers listed. Took out the Tamura and that drops all parts in the BOM to about $20 and a typical Case 3 build down to about $18.75. Now of course anybody who decides to leave off the power entry module and AC cable can also save another $9 but that is not what I intended for the chart. The chart shows an '''''estimate''''' of what the listed BOM will run at Mouser. <br> Also, I tilted the estimate a little high so that when someone actually went to buy the parts and it came in cheaper than the chart they would be happier than if their total was higher. I also didn't consider shipping directly into the numbers but it definitely would also push the number up. | ||
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Are you considering the PCB as part of the price? Maybe that's part of my difficulties, I was considering just the parts. The price that I was thinking was perhaps about $3.00 for the connectors, $.25 or so for the diodes, and using a surplus transformer that I bought for $3. So I was leaving off the power entry module (I used a pair of wire nuts), and the end of an old extension cord that I had laying around. | |||
Maybe the best thing to do is to say what the basis of the prices is (one-off ordering from mouser, not including shipping), and that the prices may vary quite a bit. | |||
--[[User:Phil Short|Phil Short]] 17:48, 8 December 2007 (MST) | |||
Revision as of 00:48, 9 December 2007
Phil questioned the cost values for the Ren-T and I double checked my BOM and I had both transformers listed. Took out the Tamura and that drops all parts in the BOM to about $20 and a typical Case 3 build down to about $18.75. Now of course anybody who decides to leave off the power entry module and AC cable can also save another $9 but that is not what I intended for the chart. The chart shows an estimate of what the listed BOM will run at Mouser.
Also, I tilted the estimate a little high so that when someone actually went to buy the parts and it came in cheaper than the chart they would be happier than if their total was higher. I also didn't consider shipping directly into the numbers but it definitely would also push the number up.
--
Are you considering the PCB as part of the price? Maybe that's part of my difficulties, I was considering just the parts. The price that I was thinking was perhaps about $3.00 for the connectors, $.25 or so for the diodes, and using a surplus transformer that I bought for $3. So I was leaving off the power entry module (I used a pair of wire nuts), and the end of an old extension cord that I had laying around.
Maybe the best thing to do is to say what the basis of the prices is (one-off ordering from mouser, not including shipping), and that the prices may vary quite a bit.
--Phil Short 17:48, 8 December 2007 (MST)