PrimaLuceLab SESTO SENSO Manuel utilisateur
robotic focusing motor
VERSION 2.1
Update 01-06-2018
This instrument is produced by PrimaLuceLab iSrl. For any questions regarding use, service, and warranty, please refer to
the addresses provided in the relevant documents.!
PrimaLuceLab iSrl • Italia • www.primalucelab.com
Note: 2.0 version of SESTO SENSO software described in this user manual needs the use of 2.0 version of SESTO
SENSO firmware. If your SESTO SENSO has a previous firmware version, before using the software please read how to
update it on page 16 of this user manual.
PrimaLuceLab iSrl SESTO SENSO user manual
English
SESTO SENSO is the robotic focusing motor by of PrimaLuceLab for precision focus control and it allows to robotize most
micrometric focusers for telescopes. It is the first robotic focusing motor that does not need an external handpad, but is
controlled directly through an USB port, enabling you to make astrophotography even easier and more precision especial-
ly when combined with the EAGLE system.
The use of SESTO SENSO, unlike other motors, does not preclude manual use of the telescope focuser on which it is in-
stalled. For manual use it is sufficient not to power SESTO SENSO and use the normal focusing knob of the telescope. Be
careful by manually shifting the telescope focus knob, you will lose the SESTO SENSO reference position, so you will need
to repeat the positioning procedure. For best performance, it is recommended to use pinion and rack focusers.
Index
Technical specifications 2
Scope of delivery and parts identification 2
Installing SESTO SENSO on telescope 3
Software installation 6
Computer connection 8
Focuser control with SESTO SENSO software 8
SESTO SENSO advanced parameter settings 13
Using SESTO SENSO with third party softwares 15
Firmware update 16
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PrimaLuceLab iSrl SESTO SENSO user manual
Technical specifications
Power 10-15V, suggested 12V 0.8A max"
Maximum weight load (vertical position): 7Kg"
Control: USB port"
Resolution: 0.7um/step +/-5% 3200step/turn"
Working temperature -15°C/+50°C"
Max excursion with 1/10 transmission: 29m"
PC control: SESTO SENSO software and ASCOM driver"
Temperature sensor Optional
Scope of delivery and parts identification
1) SESTO SENSO robotic focusing motor"
2) Power cable for cigarette plug"
3) Micro USB cable"
4) 3mm allen screw to install SESTO SENSO on focuser"
5) 1.5mm allen screw to install bushings"
6) Red bushing Ø2.5mm for AIRY refractors (ED72, APO80, ED90, ED100, APO104T, APO120, APO150T), OrionOp
ticsUK VX and CT, Baader Steeltrack® focusers, TS-Optics V-Power, Omegon V-Power, SkyWatcher"
7) Black bushing Ø2.8mm for Feather Touch focusers"
8) Green bushing Ø3.5mm for Takahashi telescopes"
9) Silver bushing Ø3.1mm for Moonlite focusers
10) Yellow bushing for AIRY refractors (APO 65F, BLACK 80T) and SharpStar telescopes with 2” focusers"
11) 2x grubscrews M3 for bushings"
12) USB pen with driver, control software and user manuals"
13) Red led for status activity"
14) Temperature sensor port"
15) Micro USB port for PC connection"
16) 12V 0.7A port with Ø5.5 ø2.5mm jack"
17) Holes for bushings fixing"
18) Grubscrews to fix the focuser!
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PrimaLuceLab iSrl SESTO SENSO user manual
Installing SESTO SENSO on telescope
First, you need to locate the bushing (details 6-7-8-9-10) for use with
the focuser you have, (figure 2) slightly screw the grubscrews (details
11A and 11B) into the bushing and insert the bushing within the SE-
STO SENSO body (detail 1). Check that the crankshaft groove is facing
upwards. The large hole of the bushing should point towards the mo-
tor pin, the bushing should be inserted until it engages with the motor
pin. At this point you can use the small allen screw (detail 5) to screw
the two grubscrews (detail 11A) by passing through the special hole on
the aluminum body of SESTO SENSO.
In order to connect SESTO SENSO to the focuser (figure 3) of your telescope, you m u s t r e-
move the manual focus micrometric knob by unscrewing the screw normally present on the knurled knob. After pulling it
out, you also need to disconnect the larger knob on the focuser, always by means of an allen screw on the knob. On some
plastic-covered focusers, you need to remove the plastic to access the disassembly screw.
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figure 2
figure 3
PrimaLuceLab iSrl SESTO SENSO user manual
Now you can insert SESTO SENSO (detail 1) on the focuser of your telescope by paying attention to centering the micro-
metric pin with the pre-assembled bushing on SESTO SENSO, until it stops, and then close the outer ring of SESTO SENSO
using the allen screw (Figure 4).
Now use the supplied 1.5mm allen screw (Figure 5) to close the two 90° screws and the two bolt screws by passing th-
rough the special hole on SESTO SENSO body.
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figure 5
figure 4
PrimaLuceLab iSrl SESTO SENSO user manual
We can proceed with the connections (figure 6), first the power cable (detail 2), then after powering SESTO SENSO, the
micro USB cable (detail 3) to connect to the PC
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figure 6
NOTE: After installing SESTO SENSO on your focuser, check the smoothness of the movement keeping SESTO SENSO
powered off and then manually moving the focus knob of your focuser. The presence of SESTO SENSO will make the
movement harder (since the motor is connected) but the motion must still be uniform. If you notice an uneven move-
ment, repeat the installation procedure.
NOTE: SESTO SENSO connects to several focusers that may have different machining and tolerances precisions. Focu-
sing accuracy, especially when using automatic focusing procedures, depends on the focuser mechanics and not only
strictly on SESTO SENSO. If your focuser has an important backlash, you can adjust the backlash parameter in the
ASCOM driver.
PrimaLuceLab iSrl SESTO SENSO user manual
Software installation
Before connecting SESTO SENSO to computer, please install the software. Please insert the USB pen that comes in the
SESTO SENSO box in one of the computer’s USB ports, then opens Windows File Manager and proceed to the installation
of SESTO SENSO software and ASCOM driver.
SESTO SENSO software installation
Please double click on SestoSensoSetup.exe file and you will see this window.
Select English and click OK to proceed.
Verify that the option “SestoSenso Application” is active and click on Next
button to proceed.
In this window you will see the installation directory for the SESTO SENSO
software, default value is:
C:\Program Files (x86)\SestoSenso Software
Please click on Install to confirm or Browse to install in a different directory.
At the end of installation, you will see a confirmation message, click Close
button to finish installation.
!
!
!
!
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NOTA: if you’re updating from a previous version of SESTO SENSO (please read page 16 for firmware update) you have
first of all uninstall both the previous versions of SESTO SENSO software and ASCOM driver.
PrimaLuceLab iSrl SESTO SENSO user manual
SESTO SENSO ASCOM driver installation
In the USB per, please select the “SESTO SENSO ASCOM driver” directory, select the directory for 32 (x86) or 64 (x64) bit
installations and please double click on the included file. Note: In order to work properly, SESTO SENSO requires that you
have the "ASCOM 6 Platform" installed and downloaded from http://www.ascom-standards.org/ (we suggest to install at
least version 6.3).
Please select “I accept the terms in the Licence Agreement” and click on
Install to proceed.
The ASCOM driver will be installed, please press the Close button to finish
installation.
!
!
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PrimaLuceLab iSrl SESTO SENSO user manual
Computer connection
At the first connection with the PC, SESTO SENSO is automatically detected as a
COM port (if SESTO SENSO is not automatically detected by Windows and you see
a new window asking for drivers, just select the driver in SESTO SENSO DRIVER
folder), just go to “Device manager” (click on Start button, then select System and
Control Panel, clock on System and then Device manager) and look at the COM port
number assigned, in the example here it’s COM4. The status LED (detail 13) starts
blinking to confirm connection. If the LED lights up and remains still, power is lost
while the PC connection has been successfully performed.
Focuser control with SESTO SENSO software
SESTO SENSO comes with a complete software (included in the USB pen)
that allows you to calibrate SESTO SENSO, move the focuser and set ad-
vanced parameters. After having connected SESTO SENSO to USB port of
your computer and powered it, please launch the SESTO SENSO software
and you will see the image you have here on the right.
SESTO SENSO software v. 2 shows, in the central part, different data like
the firmware version, serial number, temperature reading (if connected to
the opzionale temperature probe) and connection COM port. In the lower
part you can find the control and calibration buttons for and calibration of
SESTO SENSO. By clicking the arrow on the up-right part of the window,
you will see advanced parameters.
Please click on the grey window, select the COM port of SESTO SENSO (or
click on the symbol of the magnifier) and then click on “Open/Close” button.
If this is the first time you use SESTO SENSO, a Wizard window will popup
and, in a very easy way, this will allow you to correctly set SESTO SENSO for
your telescope.
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PrimaLuceLab iSrl SESTO SENSO user manual
Here you can set:
1) “Telescope with external focuser (i.e. Crayford)” if you connect SESTO SENSO to a telescope (like a refractor, a Newton
or a Ritchey-Chretien) that comes with an external focuser (for example a Crayford type)
2) "SCT telescope with MicroFocuser” if you connect SESTO SENSO to a Schmidt-Cassegrain or Aplanatic Schmidt-Cas-
segrain telescope that comes with a StarlightInstruments MicroFocuser.
In our example, we’ll see how to set SESTO SENSO with an external focuser. In this example SESTO SENSO is already in-
stalled on the focuser and powered. Click on che NEXT button. This window will appear:
Please manually set the focuser (by using the focuser’s knob) at half of the focuser travel. Then press the NEXT button
and the following window will appear.
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Table des matières
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