fozzybear

Steve, Agree with that and other things as well. Andy

Steve, Yes thats the puppy in there with the retaining ring on Baader CC. So should be 2 spacers and looks to be only the one attached. Oh Happy New year by the way (side Note). I don't know if the OP is using the M42-M48 adaptor but probably so as would be hidden from view as this would attach to the CC then the first spacer and 0mm Andy

Steve, to me looks like he needs to add the second extender after the Baader CC as from the picture looks like only one in use at the moment so thats. CC then 16.5mm extender then 11mm extender then t2-t2 (comes with EFW 2mm) then filter wheel then camera

https://www.popastro.com/main_spa1/meteor/radio-meteor-observing-2020/

if you look at the thread i posted in their there is a script file to save for Spectrumlab and other software to install. Alas I was an active RSGB Ham with M3CEQ and 2E0CEQ call signs but when moved to France did not take my full licence so silent key since... MetScat_MJMM.USR.txt

Hi there is another thread on here don't know if you have read thru it

glad you got it sorted

bummer got 9 right but hey ho and a Merry new Year to you

Glad you got it sorted in the end

Found a better photo.

the black item if 2" diameter thats the puppy you need add into the equation if you have the manual look at page 2 and the photo shows the adaptor after the hex focuser bit

Do you have any extra adaptors that came with the scope like a long 2" barrel? See page 2 f7a77adb19c049bc6129bc4d28a704b9.pdf

Hi and welcome to SGL as per @Carbon Brush any chance of a side photo of your focuser setup is yours the Hexa with the 2" extension fitted? regards Andy

you know it took me 15 mins then it clicked what you where referring to rather than an of the cuff remark yes took a while with Robert but in the end sorted glad to have helped

did you read the pdf No.... .

You are not seeing the point you can use what you already purchased........

If you want to build a simple Focuser then this the easiest route to follow that is Ascom compatible myFP2-DRV8825-Solderless simple build.pdf

Same happened to me nearly cried but if you need the space i.e. MM then it has to come off. Let's hope you don't need to but all is safe if you have to just do it in a clean area no wind to get dust on the sensor... And as i said a pair of marigolds works a treat it not remove with the camera bit in red and put in some warm water for a couple of minutes to free up the threads then unscrew (not the camera assy as would be bad)

Mike, I do not own that camera but as per the photo it does suggest that the 2" adaptor is removeable if needed hope you get it sorted out. then you would only need a 50mm barrel extension M42x0.75 as opposed to multiple ones screwed together. I do have a ZWO camera not the same as you and mine had a nose piece but this also took off the front flange from camera in red as well but a pair of marigolds took care of that Regards Andy

So to achieve the optimum of 56.8mm you camera has 17.5mm off "back focus length" thus 56.8-17.5=39.3mm to add to the back of the flattener less filter wheel or any other items after the flattener or remove the 2" adaptor on the camera then the "back focus length" would be 6.5mm to the flange on camera body M42x0.75 so again 56.8-6.5=50.3mm of spacing to add between the flattener and camera hope this makes sense

Found this old link by @Philip R

Simon Hope this helps the tensioner grub screws x2 are 2.5 Allen key so M5 grub as for the rounded off one maybe someone with better help could help you on that one. You could try a T8 torx but add some penetrating fluid and try to tighten first just a little then undo might work or hang on for other help

Merry Christmas to you, You can use most of your acquired parts and have a read if you want to try a different project approach https://sourceforge.net/projects/arduinoascomfocuserpro2diy/ you have the Nano stepper and TMC driver then read from this https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/SOLDERLESS DRV8825 NANO/ Plus info for the steppers in a pdf myFP2-TRINAMIC-09-3.pdf

hang on a minute you can use some of the items you have received look @brown_rb He has created a few and Ascom compliant so should work with NINA https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/SOLDERLESS DRV8825 NANO/ Albeit you can use your tmc2209's please read carefully if this for you

when you startup Arduino software on the PC have a read of this as you will need to add some libraries https://www.arduino.cc/en/guide/libraries I.e you will need the following dependencies to be added to the arduino software before you continue with Kari's instructions as the info below is mentioned EEPROMex TMCStepper AccelStepper OneWire DallasTemperature