Tags:
tag this topic
create new tag
view all tags
---++ Investigation into limited Phi range-of-motion * Datasheet provided by NST upon delivery indicate that phi (stage 2) motor torque is right at minimum requirement. Table below compares all phi torque values from data sheets for EM1 units | S/N | Phi Torque CW (uNm) | Phi Torque CCW (uNm) | | 101 | 650 | 550 | | 102 | 320 | 300 | | 103 | 310 | 320 | | 104 | 300 | 350 | | 105 | 350 | 380 | | 106 | 500 | 575 | | 107 | 350 | 450 | | *108* | *300* | *350* | | 109 | 520 | 510 | | 110 | 500 | 510 | | 112 | 350 | 350 | | 116 | 420 | 420 | | 117 | 300 | 300 | | 118 | 400 | 400 | | 120 | 350 | 350 | | 121 | 350 | 350 | | 122 | 300 | 300 | | 123 | 500 | 500 | No obvious correlation to torque and ability to get through sticky spot. * The other issue is that a higher on-time (than 0.06/0.07ms) will get past the sticky spot, but the resulting step sizes are too large for good convergence. This may make for an ideal candidate for fast/slow mapping. -- Main.ChazMorantz - 13 Aug 2014
E
dit
|
A
ttach
|
Watch
|
P
rint version
|
H
istory
: r3
<
r2
<
r1
|
B
acklinks
|
V
iew topic
|
Ra
w
edit
|
M
ore topic actions
Topic revision: r3 - 2014-08-26
-
CharlieFisher
Home
Site map
Antarctica web
Gattini web
SPRITE web
Cahill web
Gemini web
Keck web
MOSFIRE web
NGAO web
Main web
Palomar web
GASP web
PTF web
PalmLGS web
RoboAO web
SDC web
SEDM web
SWIFT web
TMAS web
Triplespec web
WaSP web
ZTF web
SNAP web
Sandbox web
Subaru web
PFS web
TMT web
More...
PFS Web
Create New Topic
Index
Search
Changes
Notifications
RSS Feed
Statistics
Preferences
P
View
Raw View
Print version
Find backlinks
History
More topic actions
Edit
Raw edit
Attach file or image
Edit topic preference settings
Set new parent
More topic actions
Account
Log In
Register User
E
dit
A
ttach
Copyright © 2008-2024 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki?
Send feedback