Date   

Re: Onstep Operation

Khalid Baheyeldin
 

On Sat, Feb 16, 2019 at 06:04 PM, Frank Johns wrote:
The conclusion is some conflict with the ST4??
Do you have a network resistor soldered inside the controller on the ST4 lines?


Re: Onstep Operation

Frank Johns
 

I checked the ST4 settings and it is ST4_PULLUP

Tonight I tried it with the ST4 plug in and a few minutes after doing a Sync after the align, Onstep stopped tracking.

I then restarted and tried it with the plug out and after Sync the star was held for just over 15 minutes when the clouds came over and I had to stop, although I could see the RA motor turning.

Both motors cold to touch.

The conclusion is some conflict with the ST4??

On another point - I find the control boxes on the GOTO page quite small, especially when at the eyepiece. Is there a way to make then larger, or perhaps use the page which comes up when pressing the Guide/Focus button?

.


Re: Showcase: Built With OnStep

Dave Schwartz
 

For the people who I've been sending OnStep ESP32S SHC's to, I've got an update to the 3D-printable button cap for the 5-way switch.

I am planning to experiment with 3D-printing a harmonic drive reducer and the material recommended for the flex spline is 'Soft PLA'. This stuff is sort of mid-way between regular PLA (completely stiff) and TPU (really rubbery). I had planned to make the 5-way cap with TPU but it was a failure because my printer (Anycubic i3 Mega) couldn't feed it properly. Although the vendor has an upgraded extruder drive that theoretically supports TPU (now called the Anycubic Mega-S), I decided to retry the 5-way cap in the soft PLA even after installing the upgrade.

The result is that it worked really well. I found I had to lower the extrusion temp even a bit below recommended (my hotend always seemed to run a bit above what was indicated anyway), turn off the heated print bed and set the travel speed to 20mm/sec (reduced even further to 75% with a setting in the printer AND use an external fan. It was a thing of beauty.

However, in making the design even better, I tweaked the FreeCAD design so that the button is 2mm taller (much easier to feel and push around) and tightened up the fit of the switchpost pocket since it now prints even more accurately than the orignal PLA design (although that may be due to the upgraded extruder drive).

The new STL file and FreeCAD source are in the same place as the earlier files.


Re: TeenAstro an Onstep device

Gilles Gagnon
 

Bonjour Charles,

I was on the road, the reason why my late reply. :-)

Superbe! I should post better pictures and a video or two of my AP400 modifications.

What was the material used for the housing? I assume ABS but there may be better 3D printer material for motor housings.


Re: TeenAstro an Onstep device

Charles Lemaire <Charles_Lemaire@...>
 

I am not the inventor Stephan is the maker!
http://www.astrobin.com/users/Sonixx/

The design is indeed very good, and use all the advantage of 3D printing.

Charles


Re: TeenAstro an Onstep device

Peter Dulowsky <peter.dulowsky@...>
 

Would love to have something like that for EQ5. Very good job Charles.


Re: Motorizing Vixen Porta Mount II

Charles Lemaire <Charles_Lemaire@...>
 

Hi Pete,

This is a great modification of the Vixen Porta! I love it.
I will buy a Vixen porta mount and prepare a motor kit :)

Thanks for sharing 

Charles


Re: tcm 2130 v 1.1 ?

Alin Tolea
 

Let me get them and see if they're coming with tape, you're my saviour once more :)

Alin

On Sat, Feb 16, 2019 at 12:32 PM George Cushing <pinyachta@...> wrote:
Alin, let me know if you need some tape I have a roll.



--
Alin Tolea, Ph.D.


Systems Engineer, Omitron Inc.

cell (202)-550-2401
office phone: (301)-474-1700 x 624
office fax: (301)-345-4594




Re: tcm 2130 v 1.1 ?

George Cushing
 

Alin, let me know if you need some tape I have a roll.


Re: TeenAstro an Onstep device

John Scherer
 

Love those covers Charles.  I need to figure something like that out for my G11!


Re: Minipcb 2 pcbs available.

John Scherer
 

minipcb 2s”.  Email me the shipping address 


Re: TeenAstro an Onstep device

Charles Lemaire <Charles_Lemaire@...>
 

Maybe here you can better see how it is made...


in the field:

in the field:


Re: OnStep Software Development

Howard Dutton
 

The Alpha OnStep's Smart Hand Controller code now has:

An OnStep logo on the splash screen.
All user settings in a single Config.h file.

Under the hood some obsolete (and inactive for us) TeenAstro related code was removed.


A little offtopic but maibe useful

Hans <Hans@...>
 

Hi guys,

 

I had to go to Mexico for 2 weeks for work so I could not move on with onstep.

I was back yesterday and took advantage of the 7 hours jetlag and the clear night to test the PI Noir cam as guiding device.

It still need some fine tuning, but Linguider catched up a star and started!

Now I want to activate GPIO support and connect the port to ST4.

Still had not much time to check this so maibe someone could tell me if the active ST4 port signal is LOW?

If yes, an optocoupler which switch between HIGH and LOW is the solution to send the corrections to OnStep over the ST4 input?

 

Also there is a nice housing for all this:

 

 

 

The Raspberry PI have Iastrohub installed, OnStep is connected via WIFI to the PI. So PI is WIFI host.

 

 

 


Re: Minipcb 2 pcbs available.

Pedro Fernandes
 

Hi John,

When is it sent to Lisbon, Portugal?
What is the version of the board?
Regards
Pedro


Re: Minipcb 2 pcbs available.

John Scherer
 

Just let me know where to send the board Brent.  Its just a small PCB so shipping is cheap.  


Re: Minipcb 2 pcbs available.

bjaffa Jaffa
 

John,

I would be interested in one if they are still available. But let me
reimburse you for the cost & postage.

Brent


Minipcb 2 pcbs available.

John Scherer
 
Edited

I have three extra minipcb 2s available for the asking.  Just let me know.


Re: tcm 2130 v 1.1 ?

Howard Dutton
 

On TMC2130's I use heat-sinks like those included with the FYSETC kits.


Re: tcm 2130 v 1.1 ?

Alin Tolea
 

I see. I'll see when i get these.


On Fri, Feb 15, 2019 at 4:47 PM Howard Dutton <hjd1964@...> wrote:
On Fri, Feb 15, 2019 at 12:10 PM, Alin Tolea wrote:
Question, what kind of thermal paste to people use? I suppose it needs to be an adhesive.
Thermal tape was already installed on all of the stepper driver heat-sinks I've bought.



--
Alin Tolea, Ph.D.


Systems Engineer, Omitron Inc.

cell (202)-550-2401
office phone: (301)-474-1700 x 624
office fax: (301)-345-4594