Commit b53ce7b0 authored by Nanditha Nair's avatar Nanditha Nair

Update week05.md

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......@@ -69,9 +69,8 @@ FR 4 - is a glass fiber epoxy laminate - Used for chemical etching. FR4 uses 8 l
### Bits used for milling
<p> Along with the machine, we need to get the right tools for milling PCBs. The very critical part of these is the engraving bit, which creates the actual traces onto the PCB. The bits used for this purpose have to be sharp enough so that it can cut through the copper as opposed to tear it and yet it needs to be very fine and creates small footprints to mill the tiny traces. The bits used for cutting in our lab are made of carbide. Bits available in our lab are 1/8, 1/32 and 1/64, but we did not use 1/8 bit.</p>
![Bit Specifications](../images/week05/bit.jpg)
<p><img alt="1/64 and 1/32 Bits" height="350" width="350" src="../../images/week05/bits.jpg" /> </p>
<p align="center"><img alt="Bit Specifications" src="../../images/week05/bit.jpg" /> </p>
<p align="center"><img alt="1/64 and 1/32 Bits" height="350" width="350" src="../../images/week05/bits.jpg" /> </p>
> The bit on the left is 1/64 and the bit on the right is 1/32
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