From 60a5a4060d62276e5eb05bb768fde7b62a4121be Mon Sep 17 00:00:00 2001 From: Blaise Thompson Date: Mon, 25 Jan 2021 14:41:28 -0600 Subject: tap-heatsink --- digital-driver/README.md | 1 + digital-driver/driver.sch | 4 ++-- documentation/documentation.pdf | Bin 123965 -> 2764143 bytes documentation/documentation.tex | 10 ++++++++++ pictures/tap-heatsink.jpg | Bin 0 -> 2629781 bytes 5 files changed, 13 insertions(+), 2 deletions(-) create mode 100644 pictures/tap-heatsink.jpg diff --git a/digital-driver/README.md b/digital-driver/README.md index 53bcf30..d5d0762 100644 --- a/digital-driver/README.md +++ b/digital-driver/README.md @@ -6,6 +6,7 @@ A photoreactor driver board designed to be controlled digitally over I2C. This PCB was designed using KiCAD version 5. Refer to `driver.pdf` for schematic. +PCB images generated with [tracespace](https://github.com/tracespace/tracespace) follow. ![top](./top.png "PCB top view") diff --git a/digital-driver/driver.sch b/digital-driver/driver.sch index c18a718..e4bfecd 100644 --- a/digital-driver/driver.sch +++ b/digital-driver/driver.sch @@ -429,10 +429,10 @@ LED + Text GLabel 3300 3850 2 50 Input ~ 0 PWM_LED $Comp -L LDD-1500L:LDD-1500L J6 +L LDD-1500L:LDD-1500L U2 U 1 1 5FD3EABF P 1250 3650 -F 0 "J6" H 2150 3915 50 0000 C CNN +F 0 "U2" H 2150 3915 50 0000 C CNN F 1 "LDD-1500L" H 2150 3824 50 0000 C CNN F 2 "LDD-1500L:LDD1500L" H 2900 3750 50 0001 L CNN F 3 "https://componentsearchengine.com/Datasheets/1/LDD-1500L.pdf" H 2900 3650 50 0001 L CNN diff --git a/documentation/documentation.pdf b/documentation/documentation.pdf index 7f8b391..e51bd01 100644 Binary files a/documentation/documentation.pdf and b/documentation/documentation.pdf differ diff --git a/documentation/documentation.tex b/documentation/documentation.tex index 8b64659..dceb6e5 100644 --- a/documentation/documentation.tex +++ b/documentation/documentation.tex @@ -90,6 +90,9 @@ \subsection{Digital} +TODO: document I2C connection choice. +Consistent with Adafruit, Sparkfun, Seeed... + \subsubsection{Driver} \includepdf[landscape=true]{"../digital-driver/driver.pdf"} @@ -106,7 +109,14 @@ TODO: LED PCB part number TODO: heatsink part number +\begin{figure} + \centering + \includegraphics[width=\textwidth/2]{"../pictures/tap-heatsink.jpg"} + \caption{Two of the innermost holes on the extruded heatsink must be 4-40 tapped.} +\end{figure} + Tap the heatsink. +We used thread-forming tap: OSG 1400105300. TODO: heatsink compoud diff --git a/pictures/tap-heatsink.jpg b/pictures/tap-heatsink.jpg new file mode 100644 index 0000000..3d9ca04 Binary files /dev/null and b/pictures/tap-heatsink.jpg differ -- cgit v1.2.3