Talk:DIYbio:Notebook/Open Gel Box 2.0

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(Open Gel Box 2.0 conference call 2009-01-30)
Current revision (19:09, 1 February 2009) (view source)
 
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[[DIYbio:Notebook/Open_Gel_Box_2.0/2009/01/30|Open Gel Box 2.0 conference call 2009-01-30 Minutes (page moved)]]
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=== Open Gel Box 2.0 conference call 2009-01-30 ===
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: notes by *'''[[User:Jonathan Cline|jcline@ieee.org]] 16:54, 30 January 2009 (EST)'''
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Discussion on gel box and p/s design:
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Goals for gel box & related;
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1. standardization; pick what we want, have everyone use it; get everyone on the same page for experimental results, etc.
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2. safety; pick the best reagents & components for safety
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3. Compare up front costs -vs- run rate costs
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--- "ease of use for hobbyist";  professional equip is meant to run 1000's of times;  hobby equipment may run 100 times; different cost model.  May want lower up front with higher run rate cost, if it makes sense.
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(Norman) Result of gel box are going into biz plan competition
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(norman) standardizing the power supply to power multiple components (gel box, thermocycler, etc.)
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(mac) http://www.ponoko.com/ - open source manufacturing
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(jonathan) Look at discovery channel dna explorer for business target volumes and costs
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Reasons for building a custom supply:
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1. (norman) wants to supply the illuminator, etc as well; peripheral support (LEDs, peltier device)
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2. presumed lower cost?  TBD.
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3. (tito) experimenting with different voltages for those designing the gel box (however end user won't need variable voltages?)
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Power requirement;
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1. Norman's results show 60v, 90v, 120v
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2. Norman's results show 100mA is sufficient
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Why use a variable supply?  Fixed supply is OK.
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1.  (norman) fixed supply anywhere in the range 90-120 for "FAST RUN"
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2.  (norman) fixed supply anywhere in the range 60v for "SLOW RUN"
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3.  (tito) would like to test "better faster gels" (would need 300v)  -- wait on the results on this; this will "gel system 3.0", not now
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:: (jonathan) philip is building the experimenter-supply for ~300VDC variable output; coming soon
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:: (jonathan) try the nixie supply for ~150V-180VDC for experimenting
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(Tito) Where can I buy a supply right now w/o any electronics construction that does this?  Only found this one: http://educationalscience.com/merchant.ihtml?merchantid=4&pid=3178&step=4&passwordstatus=:passwordstatus
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:: (jonathan) At $100 seems cheap.  Price makes sense because of manufacturing volume.  Not a lot of volume for this voltage range ~100v supply.
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:: (jonathan) closest other method is to use +12V supply into off-the-shelf inverter to 120VAC then use a bridge+RC to filter to ~90VDC.
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What other peripherals might need to be connected?
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(jonathan) Also see, the DIY spectrophotometer; possible "peripheral" to "gel system".
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http://www.rsc.org/Education/EiC/issues/2007Sept/BuildYourOwnSpectrophotometer.asp
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(jonathan) customer wants a full set of equipment to use in the lab
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Current revision

Open Gel Box 2.0 conference call 2009-01-30 Minutes (page moved)

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