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Added link for fluid motion control devices to ATM resources #52

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10 changes: 8 additions & 2 deletions src/conf.py
Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@

html_static_path = ["_static"]

notfound_urls_prefix = ''
notfound_urls_prefix = ""


def add_context_funcs(app, pagename, templatename, context, doctree):
Expand All @@ -94,7 +94,13 @@ def add_git_history() -> str:
context["page_source_suffix"]
)
commit_log = defaultdict(list)
for commit in repo.iter_commits(paths=filename):
commits = list(repo.iter_commits(paths=filename))
if not commits:
raise ValueError(
f"{filename} exists but has no commit history. Please commit the "
"file before trying to build the site."
)
for commit in commits:
commit_log["Date"].append(
f'<a href="{repo_url}/commit/{commit.hexsha}">'
f"{str(commit.authored_datetime)}</a>"
Expand Down
18 changes: 18 additions & 0 deletions src/telescopemaking/fluid_motion_control.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
# Fluid Motion Control

For more information, check out [Ed Allen's talk from the 2023 Portland Alt-Az
Conference][portland-alt-az].

## Devices

| Device | Comment |
| --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| FRT-E2/E9 | Useful for tiny scopes; have very low torque |
| FRT-G2/C2 | Might be useful for small scopes, particularly with reduced ratio installation |
| FRT-D2 | Might be useful for small-to-medium scopes with reduced ratio installation |
| FRT-L1 | Might be useful for small-to-medium scopes with 1-1 installations or small scopes with reduced ratios |
| FRT-K2/F2 | Unsuitable due to motion/backlash from internal design/build tolerances (4 units tested) |
| FDT-47A | Useful disk-type dampers for small-to-medium scopes with 1-1 installations or larger scopes with reduced ratios. Have passthrough capability and wider temperature range |
| FDT-57A/63A/70A | Similar to FDT-47A with 1-1 capacity capable of handling even larger scopes. These are physically larger bodied, and have larger square inputs. |

[portland-alt-az]: https://www.youtube.com/watch?v=R3ZWMsKWNII&t=3470s