FIX YOUR DEAD PADS - PICS & INSTRUCTIONS INSIDE

so aNT,what material is better then the velostat...

http://www.ncsu.edu/chemistry/cbg/Resea ... itic1.html

Research Project Areas: New Precursor Polymers to Highly Conducting Materials


Overview — Direct Lithography

Carbon is, on paper, the perfect material for building electrical circuitry. In its saturated form (e.g. sp3 hybridized carbon) it is one of the best electrical insulators. In its graphitic form (e.g. sp2 hybridized carbon) it is one of the best electrical conductors. Graphitic carbon, although highly conductive, is unfortunately virtually non-processable. In the most general sense, it remains unclear how one might prepare a material that has the excellent conductive properties of graphite yet is amenable to processing steps required to fabricate the material into a device. This bottleneck translates into a lack of functional polymeric materials such as precursor polymers to highly conducting ladder or other graphite sub-lattice structures.



What might one do with a suitable graphitic polymer precursor? One illustrative example is the as-yet largely unexplored area of direct writing. If upon the application of some type of radiation (such as UV or electron-beam irradiation used in typical microlithography schemes), one could convert an insulating polymer into a highly conducting polymer, electrical circuitry could be "written" in one step. Currently, the establishment of electrical interconnects using photolithography/photoresist requires on the order of ten processing steps (e.g. pre-bake, primer, spin-on, bake #2, irradiation, development, bake #3, metal evaporation, lift off — other steps are often added to improve quality control). Additionally, direct writing of a polymer precursor could, in principle, be performed in a dry step. This type of processing would avoid the tremendous amount of organic solvent required (a substantial amount of which evaporates and is a considerable air-quality problem) in conventional processing. Moreover, direct writing should provide substantial cost savings and thus be applicable in arenas where metal interconnect printing is economically unattractive. Specifically, no high vacuum deposition steps are called for in the direct writing schemes, and such steps are among the most expensive in lithographic fabrication schemes. Finally, carbon has intrinsic properties that have advantages over metallic conductors. For example, upon the application of a suitable electrical potential, copper metal lines of ca. < 50 nm width electromigrate sufficiently to thin and break at room temperature within a few hours. Graphite is a covalently linked conductor — electromigration should not be possible in this material. Direct writing is but one example of the potential of graphitic polymer precursors. However, it nicely illustrates the current materials shortcomings in electronic device fabrication.

http://www.graphitestore.com/itemDetail ... &curPage=1

i thiNK i foUND the GRaPHiTE,that may woRK BEtter then the velostat...

http://www.seal-material.com/ecp3-4.htm

so antonym... so your saying that one whole piece of velostat that covers all the sensors at once would work,but just that the velostat isn't durable enough..is that what you mean...,but what if we were to get a piece of the original material to cover all the sensors(which i believe is flexible graphite) wouldn't it work that waY,then we would be able to go with that design hat we were taling about alittle earlier..

and AntoNYm what what be a good thickness for the flexible graphiTE..

just thinking alot ANt..hit me up and let me knoW yoUR thoUghts oN this oNE.

verY much appreciated

peace love and blessings

ROCiSM

haha rocs i have to give you props here
you're treading very familiar water.

the stuff isn't carbon - it's carbon impregnated rubber. pressure transducing rubber. if it was just carbon, that'd be a differnet matter.

what you linked me to would give you a velocity of 127 all the time. it's not variably resistive.

but what if we were to get a piece of the original material to cover all the sensors(which i believe is flexible graphite)

been there. this would work, but the same problem would end up happening - how do you plan on securing the rubber to the sensor? therein lies the problem. no matter what you end up doing, you have moving parts, which will lead to mechanical failure.

the best is to find a self contained sensor replacement, which is what my avatar picture is.

i calld up VST and ONe of GUys Said THere saID that IT was carboN or GRAPHITE i don't remeber now shit..!!!,but graphite is a HArd ass MAterIAl so I wEn't and LooKeD for graphite sheets,and what i found was flexible carboN graphite sheets, since=->

" Carbon is, on paper, the perfect material for building electrical circuitry. In its saturated form (e.g. sp3 hybridized carbon) it is one of the best electrical insulators. In its graphitic form (e.g. sp2 hybridized carbon) it is one of the best electrical conductors. Graphitic carbon, although highly conductive, is unfortunately virtually non-processable. In the most general sense, it remains unclear how one might prepare a material that has the excellent conductive properties of graphite yet is amenable to processing steps required to fabricate the material into a device. This bottleneck translates into a lack of functional polymeric materials such as precursor polymers to highly conducting ladder or other graphite sub-lattice structures."

so i'm also sure that this may be the same material that we find in the mpc before the sensor starts to malfunction.

and now since the velostat is good but doesn't last to long,this may be our solution to a cheaper reliable fix for the MPC 1000's that many of us own.

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quote: but what if we were to get a piece of the original material to cover all the sensors(which i believe is flexible graphite)



been there. this would work, but the same problem would end up happening - how do you plan on securing the rubber to the sensor? therein lies the problem. no matter what you end up doing, you have moving parts, which will lead to mechanical failure.
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ok try and bare with me here

ok..now.. i thought what if i can find a thin latex like rubber that i can glue(using silicone glue) the pads to, therefore making them a one piece of pads opposed to single ones, now when you place the cover over the pads they stick out(they rise out above the pad holes that the front of the cover provides right,now what if i were to somehow attach the flexible vinyl/graphite to the rubber one piece of pads,maybe like you said earlier we can sew a stich,but only along the edges of the vinyl/graphite and latex pad one piece this would make them securely fit and stuck to each other and being since they are now one unified piece ,being that the cover is over the pads and holding them firmly not allowing them to swerve while in the case.therefore we have solved our solution,but if not the stiching i was thinking we can use some tape or extra vinyl for the edges alone,i'm still trying to work that out myself,but everything i've been posting is just me thinking out loud and me trying to add helpout to what was already said by ANtoNym and others.

AntoNym please get back to me brO..

peace love and blessisngs

ROCiSM

i think nym's been down the path you're on, i trust him when he says it'll be better to use these other sensors. not cheaper, maybe, but better.

I unDerstaNd whaT Your sayINg,anD i truLY aM thankFul foR ANtoNYm's EffOrTS and all HE is dOInG foR The InnOVatIOn oF the MPC 1000 desigN anD will taKE what HE says coNcerNinG thiS isSue iNto ConsidERatioN alWaYS,bUT i THiNk and feEl thAt THis IsSue can Be rEsoLVeD iNsteaD of ThowiNG it asiDe sayiNG " it can't be done" aND goING anOTher rouTe,i For One support ANtoNYmS new SensoRs anD i Am GOiNG to PUrchasE them As sOOn as They aRE readY,but i am feelING LiKe " iT caN Be DOne " so i'm GoiNG to Go foR it... And wiTH NO FEaR... anD i wiLL fiGure IT oUt..

we shOUld alWays supPorT eacH iN whatEver we Do,becaUse They'rE BarrierS aND barriErs arE MeaNT to Be BRoKen.

alwayS infinite peace love and blessings

ROCiSM

yeah that's cool, good luck with it, and i'll always be willing to lend a hand if you need assistance.

well thATs what the foruM is For If yoU haVE anY iDEaS pleaSE heLPS us all Out..we"Re IN thIS toGetHEr to Fix AKai'S MIStaKE,so I gUesS wE sHAll correct it.

ROCiSM

here's a link that you'll find useful:

http://www.sensitronics.com/

remember, it's not a sheet of carbon that is going to be your answer, it's carbon-impregnated rubber. roger eventoff calls it force transducing rubber. inaba rubber (japan) makes it, and they call it "inastomer"

the sensors i got from CUI are inastomeric, that is they were imported from japan.

HEy ANtoNYm,did the velOstaT noT woRk GooD althOUgh it FAiLED in a shOrt amOuNt of TiME,nOW what If we Can fiND MAterIaL THaT wiLL do The saME thiNG BUt LasT alOT LONgeR ... i THinK THat matERial woULd Be" FLEXIBLE GRAPHITE" = natural mineral graphite which contains 99% carbon.

buT at THis POinT i Don't CAre if Its THE oriGInal MAterial( althoUGH the ORigInAl materiaL is IdeaL)or NOt as LOnG as IT doES what THE O.G material and velostat caN dO,but JUst Last alOT loT loT lot LOt LONgeR.

anD i THiNK,actually HOPiNg ThaT tHe FLEXIBLE GRAPHITE" = natural mineral graphite thaT contains 99% carbon will do THe tRicK.

we'll JUst HAve to SeE,but this is what I have fouNd in order to supporT my beliefs coNCErNInG thIS material



http://www.ncsu.edu/chemistry/cbg/Resea ... itic1.html

Research Project Areas: New Precursor Polymers to Highly Conducting Materials


Overview — Direct Lithography

Carbon is, on paper, the perfect material for building electrical circuitry. In its saturated form (e.g. sp3 hybridized carbon) it is one of the best electrical insulators. In its graphitic form (e.g. sp2 hybridized carbon) it is one of the best electrical conductors. Graphitic carbon, although highly conductive, is unfortunately virtually non-processable. In the most general sense, it remains unclear how one might prepare a material that has the excellent conductive properties of graphite yet is amenable to processing steps required to fabricate the material into a device. This bottleneck translates into a lack of functional polymeric materials such as precursor polymers to highly conducting ladder or other graphite sub-lattice structures.



What might one do with a suitable graphitic polymer precursor? One illustrative example is the as-yet largely unexplored area of direct writing. If upon the application of some type of radiation (such as UV or electron-beam irradiation used in typical microlithography schemes), one could convert an insulating polymer into a highly conducting polymer, electrical circuitry could be "written" in one step. Currently, the establishment of electrical interconnects using photolithography/photoresist requires on the order of ten processing steps (e.g. pre-bake, primer, spin-on, bake #2, irradiation, development, bake #3, metal evaporation, lift off — other steps are often added to improve quality control). Additionally, direct writing of a polymer precursor could, in principle, be performed in a dry step. This type of processing would avoid the tremendous amount of organic solvent required (a substantial amount of which evaporates and is a considerable air-quality problem) in conventional processing. Moreover, direct writing should provide substantial cost savings and thus be applicable in arenas where metal interconnect printing is economically unattractive. Specifically, no high vacuum deposition steps are called for in the direct writing schemes, and such steps are among the most expensive in lithographic fabrication schemes. Finally, carbon has intrinsic properties that have advantages over metallic conductors. For example, upon the application of a suitable electrical potential, copper metal lines of ca. < 50 nm width electromigrate sufficiently to thin and break at room temperature within a few hours. Graphite is a covalently linked conductor — electromigration should not be possible in this material. Direct writing is but one example of the potential of graphitic polymer precursors. However, it nicely illustrates the current materials shortcomings in electronic device fabrication.


what Do YOu thiNk...

becuaSE i remeMBeR MesSIng wiTH THE oriGInaL SQuaRE materIal PIeCE and iT felT lIKE sOME tyPe of a ruBBer but Not qwiGHt rubbEr and not that ELastIc,anD iN my situatIOn THat Same PIeCE of original SQuarE MAterial CRackEd iN halF,meaNIng the MAterIaL is mORE fRAgiLe THeN ruBBeR.

i'M NoT sayING that what Your SayIng is WrONg,i'm just SayINg Thats How it sEeMS to ME.

buT if what THey Are sayINg is TRuE

" In its graphitic form (e.g. sp2 hybridized carbon) it is one of the best electrical conductors. "

theN it Just Might woRk..

much respect peace love and blessings

ROCiSM

whEN i OPened MY MPC i SaW that All THE ( ORIGINAL) carBON squARes wERe fiNE anD iNTact,but When UsiNG the MPC 1000 almOST all OF thEm arE flaKy( meanINg to Get a RespONSe i Almost woUld hAvE to Hit thEm wiTh a SledGE haMMer ) shOUld i GEt a WHole NEw BAtch OF sensoRs oR doEs somEoNE kNOw whatS goING ON...

anOther MYsterY coNtiNUes....

plEasE get BAck to ME oN This OnE,iF anYOne MIgHt HAve a clUe To THE Never ENdiNG puzzLE.

peace love and blessings

ROCiSM

Here ARe SOme PIcs OF the RouTE thaT i DeciDed to Go fOR MPC 1000 MOD..

aS manY may PRobaBly be ABle to SeE,i tryEd to MAke thIS desiGN as a SInglE pad BAnK drOP in desigN.

BEFORE...
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AFTER....
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Much PropS aND respEct to EVerYONE whO contribuTEd sOME tyPE of KNOWleDge aND iDEas to The MPC 1000 solutioN..

peace love and blessings

ROCiSM

could you explain a bit more what you did? thanks.