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Type: Posts; User: messar

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  1. Replies
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    500

    Thanks for the comments - parts is a big concern...

    Thanks for the comments - parts is a big concern for sure. I found out a bit more about the machine - sounds like the display is out (although the pictures show it working, so red flag here).

    I...
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    500

    VTC-16B questions

    I am (perhaps foolishly) looking at a VTC16b. It would end up going in my garage, so it's a bit ambitious size wise I know. The adder is that it's currently non-functional (supposedly CRT driver...
  3. Thread: Deburring parts

    by messar
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    17
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    1,974

    Not relevant to the question asked, but for the...

    Not relevant to the question asked, but for the HF 18lb tumbler, you can buy a new bowl from Eastwood for 36$. It ends up fitting perfectly.

    Matt
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    It looks like a test socket of some type holding...

    It looks like a test socket of some type holding spring pins - maybe they can use Torlon - it's what I've seen used in the past for RF test sockets that test tight pitch QFN components.

    Matt
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    1,550

    I've seen this happen on a wafer developing...

    I've seen this happen on a wafer developing machine. (a glass wafer is placed on a chuck, and spun up while a developer is sprayed on the wafer)

    The encoder was all gunked up, and would randomly...
  6. Hi, If it's not too much trouble, a view from...

    Hi,
    If it's not too much trouble, a view from front and back of the compressor itself.

    Is there another thread that has more images? I looked, but couldn't find anything.

    Thanks,

    matt
  7. Do you have a picture of the compressor itself?...

    Do you have a picture of the compressor itself? I'm close enough it might be worth the trip. (outside DFW).
    THanks,

    Matt
  8. Replies
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    RFQ - series of bent stainless steel parts

    Hi,

    I'm working with a client to put together a manufacturing plan for a product based on bent stainless steel or titanium parts. This is a bit outside my area of expertise, (manufacturing I know,...
  9. Replies
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    Thanks for the insights. I wish the timing was...

    Thanks for the insights. I wish the timing was right for me, since these sound like a great value. I was looking at Haas mini mills or some of the small Sharp machines, and this is a night and day...
  10. Replies
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    2,882

    I'm curious about these machines - there is a...

    I'm curious about these machines - there is a VCP600 on Ebay for around the same price. Either appear to be an incredible amount of machine for the money. What am I missing?? Why are these so...
  11. Replies
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    You may want to try oxalic acid (wood bleach)....

    You may want to try oxalic acid (wood bleach). Have a look at this thread on using it.

    Post #8

    Dexcool Sludge - ADVrider

    I did some further searching, and the prestone cleaner reference in...
  12. Keith, I may be able to help decipher some of...

    Keith,

    I may be able to help decipher some of the numbers on a package. You'll most probably have to narrow down what the part is (manufacturer/function), then look at data sheets though unless...
  13. Have a look at the Zelio smart relays . They...

    Have a look at the Zelio smart relays .

    They have a module that allows you to hook up an industrial GSM modem to the smart relay . Do a search for the software - it's available from the Schneider...
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    Hi, I was looking to do something similar to...

    Hi,

    I was looking to do something similar to Malaysia, and did some searching, and found these guys http://www.ezpzx.com/?page_id=27

    The nice part is that you only have to deal with shipping to...
  15. Replies
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    I think Handsdie has the right idea - Even though...

    I think Handsdie has the right idea - Even though the new fabs will be huge facilites, there is probably not that much that you'd be able to provide, since they will be buying from suppliers or...
  16. Thread: PLC Programming

    by messar
    Replies
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    3,804

    Have a look at the software for the zelio smart...

    Have a look at the software for the zelio smart relay from Schneider electric. There is an option to use ladder logic to program them, and the software is free with a decent simulator.

    Matt
  17. Thread: Rusty parts

    by messar
    Replies
    21
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    6,413

    Have a look at DI/RO units used by people with...

    Have a look at DI/RO units used by people with saltwater aquariums. They are not very expensive.

    Typical setup would be:

    10um sediment filter -> 5um carbon filter -> RO unit -> DI resin unit. ...
  18. Thread: Drilling Al 2O3

    by messar
    Replies
    6
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    1,246

    I've dealt with laser drilled alumina. It was...

    I've dealt with laser drilled alumina. It was used for a circuit board in a hearing aid - we used these guys for drilling, and supplying the base ceramic....
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    Very good point - I opened my mouth without...

    Very good point - I opened my mouth without actually doing the calculation. In the situation that I know best, we are dealing with semiconductor die of about 1mm x 1mm that can put dissipate several...
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    You are correct on both counts :) We are...

    You are correct on both counts :)

    We are currently using a lapping wheel with diamond film to polish the samples. The film is described as 0.5um - I'm assuming this means 0.5um diamond size....
  21. Replies
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    fine grit grinding question

    Can anyone comment on things I need to look out for when using very fine grit grinding wheels?

    In my application, I'll be using wheels down to 0.5um grit size, grinding semiconductor parts, so a...
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    Good reference book suggestions?

    I've started a new project that involves grinding semiconductor parts. I don't know much about grinding, so I'm looking for a good modern reference book to start with.

    In particular, details on...
  23. Replies
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    From a numbers standpoint, here are some typical...

    From a numbers standpoint, here are some typical thermal conductivites (all in W/m.K):

    Aluminum 235
    Al2O3 40 (for bulk material)
    Higher thermal conductivity epoxy 0.6 (I picked one at random...
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    Have a look at some of the community college...

    Have a look at some of the community college programs.

    Niagara college offers some welding classes, both apprenticeship, and shorter courses.
    ...
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    Hmm, not sure if I can help then. The process...

    Hmm, not sure if I can help then. The process that I'm familiar with is only the assembly of microchips. I'd assume the process is pretty similar for other shapes with embedded wiring, but I've never...
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