How To Make a 114mm x 900mm Telescope at Home

How To Make a 114mm x 900mm Telescope at Home - 3D Printed

Рет қаралды 51,822

Жыл бұрын

In this video I'll show you how to build the Hadley Newtonian Telescope. This is a fun open source project that you can build yourself. Powerful enough to see the rings of Saturn, Jupiter's moons, and craters on the moon. Aperture 114mm. Focal Length 900mm
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00:21 Print Calibration
1:44 LTA Build
4:21 Mount Interface
6:25 UTA
11:20 Attach Components
15:00 Mount Construction
18:58 Alignment - Collimation
21:16 First Images
Model files
Hadley Telescope is licensed under a
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Designer: Maff - www.printables.com/social/134...
Model Files: www.printables.com/model/2243...
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Пікірлер: 118

@maff9198 Жыл бұрын

Hey, it's my project! neat feature.

@MyEngineeringProjects Жыл бұрын

Cool

@BStreet666 Жыл бұрын

If you are the true Maff, I feel like this is a rare opportunity to thank you for designing this. I completed the print / build process after finding it on Thingiverse and it has completely blown away family and friends with the results. I knew absolutely nothing about telescopes before the build other than that I wanted one but didn't know where to start. This scope is hands down one of the coolest things I've ever had and I use it on almost every clear night. The fact that no supports or special knowledge are needed for any of the prints is astounding and a testament to your design.

@maff9198 Жыл бұрын

@@BStreet666 I'm not hard to find on the internet :p If someone posts one of these to Reddit I usually get told about it. Thank you so much. I made this whole project to increase access to astronomy (and as a response to the predatory scopes stores sell-- underperforming and overpriced), and I have been absolutely floored by the spread/adoption. Glad to hear everyone is finding the prints easy, as well. I think the components of FDM-design are often overlooked!

@iamionscat9035 2 ай бұрын

Is this capable of measuring arc seconds? If so what is the error range (sensitivity). My purpose is make a telescope that is sensitive to an arc second and can include a tube that can be filled with water. Ideally that the water filled tube can be swapped in and out on the fly instead of in a labor intensive manner that takes a long time. I would be grateful for any suggestions and /or pointing me to further readings. Sincerely - Thank you for your time and consideration.

@skichoow 2 ай бұрын

Perfect job!

@MyEngineeringProjects 2 ай бұрын

Thank you.

@AstroInDusVerse Жыл бұрын

Great job, Very useful

@MyEngineeringProjects Жыл бұрын

Glad it was helpful

@reyb925 Жыл бұрын

Very well done.

@MyEngineeringProjects Жыл бұрын

Glad you liked it. I appreciate the feedback

@scottveron Жыл бұрын

Thanks for this video dude!! Assembled mine following this (with a 3d printed stand though) the other day and saw Jupiter and its moons.

@MyEngineeringProjects Жыл бұрын

Glad I could help and that you saw Jupiter. I was blown away the first time I saw it and 4 of it's moons.

@angrygnome32 Жыл бұрын

any chance you can share the stl?

@scottveron Жыл бұрын

@@angrygnome32 yeah you can get it online, it's in the description of this video, the link to the model on printables

@CosmosHistory Жыл бұрын

Love This..

@MyEngineeringProjects Жыл бұрын

Glad to hear it

@rwdavidoff Жыл бұрын

A really nice video of the Hadley assembly process. If you're going to be swapping eyepieces or adjusting focus much, you might want thumbscrews for the screws on the focuser so you can make them tight or loose without needing a screwdriver, but I'm linking this places as a great assembly guide reference!

@MyEngineeringProjects Жыл бұрын

Glad you like it. I ran out of thumb screws when I shot the video. I've since swapped out the regular screws with them and it's a lot easier.

@MrPcguy1000 Жыл бұрын

i definitely want to try it

@MyEngineeringProjects Жыл бұрын

It was a lot of fun and pretty easy to build.

@predictedkillers349 Жыл бұрын

Dude that’s actually dope as hell. Keep us updated

@MyEngineeringProjects Жыл бұрын

Will do. It has been a fun project.

@predictedkillers349 Жыл бұрын

@@MyEngineeringProjects got a Celestron 114EQ coming soon

@MyEngineeringProjects Жыл бұрын

Wow cool. I hope you like it.

@3rd_Millennium_Engineering Жыл бұрын

This is just doggone TOO cool!

@MyEngineeringProjects Жыл бұрын

Glad you like it. I had a blast building and then using it.

@crackedcd12 5 ай бұрын

This is going to be my first attempt at making a telescope. In theory could I also buy better mirrors to see further objects in the sky? Thanks so much! Making my list!

@MyEngineeringProjects 5 ай бұрын

You're welcome, I'm glad it helped. Yes you can spend more for higher quality mirrors. Just make sure they have the focal length specified in the project.

@josephshaff5194 6 ай бұрын

Shaff was here. Have a lookat my Mirror. EM Drafter/Designer goin' for 1st BS Physics. Now if you look up Popes Telescope Spray on Coating, I think some different shapes of Mirrors can be tested like a Hyperbola.

@MyEngineeringProjects 6 ай бұрын

Great if you can do it, but this is a spherical design.

@Taloquin Жыл бұрын

Nice video, thanks for this! Though I'm willing to bet the God of Mirrors (were it to exist) probably had an epileptic seizure when you cleaned your mirror. :P

@MyEngineeringProjects Жыл бұрын

Thanks. It's great to have video speed control.

@jeromejooste3493 Ай бұрын

Absolutely, still trying to recover,

@agentjwa Жыл бұрын

printing one right now, already got the glass just have to wait on the printer.

@MyEngineeringProjects Жыл бұрын

Sounds great. It's a lot of fun to build.

@VladFilippov Жыл бұрын

Hi there! Great video, where did you get the center spot aligner model at 19:30? I cannot find it anywhere :\

@MyEngineeringProjects Жыл бұрын

You can download it here: www.printables.com/model/245036-center-spot-finder

@wizardeddas Жыл бұрын

I just heard about the Hadley from a coworker and am thinking about building it. Do you think with an adaptor, and something to compensate for the weight, a DSLR camera would work with it? I'm pretty new to astronomy

@MyEngineeringProjects Жыл бұрын

As printed it won't hold a DSLR. I have built a counter weight and am working out the bugs now. The counterweight is required for this use. I do recommend building this project as it's a lot of fun and you can see incredible detail of the moon and other objects.

@wizardeddas Жыл бұрын

@@MyEngineeringProjects sounds good. Yeah once I get my printer back going I'm going to start printing it. It'll be a fun project

@patvdleer Жыл бұрын

@@wizardeddas Keep in mind that (most) DSLR's have IR filters, so you won't be able to capture all available "light"

@crysaeon Жыл бұрын

Do you have a link to the aspheric eyepiece set? I think yours links the mirrors again.

@MyEngineeringProjects Жыл бұрын

My apologies, you are right. I've updated the link to the eyepiece and tested it. Works now.

@GodStang03 Жыл бұрын

Thank you so much for this as I started the print this past weekend. Quick question is I still have to print the knobs and Spider. The issue is on the Creality when and how do you pause it to put the nuts in. Like at what point in the print?

@MyEngineeringProjects Жыл бұрын

Yes you need to embed nuts in the spider. Here is a tutorial on how to embed nuts with an Ender kzfaq.info/get/bejne/nr1yh7uXscWqZX0.html Also, the knobs with embedded nut are so handy, I would say they are required. It's a lot easier to align the mirror with embedded nuts. Open your slicer and slice the spider or knob and then scroll up and down until you can find the spot just before where the nuts are enclosed. Here is where you place the custom G-code to pause the print. See the tutorial for details.

@GodStang03 Жыл бұрын

@@MyEngineeringProjects thank you so much for your quick response. After research I found out my Ender 6 does no support mid print pauses by GCode. So I will have to find time I can sit by it and manually do it.

@th3t1ck94 4 ай бұрын

Basically after you slice it go to preview (I'm using Cura) and move the slider on the right until you get to the point where you insert the nut. Note the layer number. Then go to "post processing" and pick "pause at height", choose layer, from there you should be able to figure it out.

@th3t1ck94 4 ай бұрын

I believe you need that in your slicing software so you can produce the gcode that Ender will use. @@GodStang03

@MrNinja007 11 ай бұрын

Is it just for lunar and planet observation or does it also have a good quality on seeing other stuff?

@MyEngineeringProjects 11 ай бұрын

You can observe other objects as well.

@jacktopper3365 9 ай бұрын

How does the brake work with the vertical movement on the wooden mount?

@MyEngineeringProjects 9 ай бұрын

I had a couple of different versions. One of them was just a knob that I used as a friction device against the wheel. That wasn’t too bad. I also tried a rod with a clamp and that seem to be more stable

@barenekid9695 Жыл бұрын

Little taken aback by the seeming lack of awareness of the Mirrors . These are usually First surface mirrors with a vacuum deposited Aluminum reflective layer. Molecules thick.... Wiping the surface doesn't just scratch the mirror.... it Removes ! ....the mirror layer.

@MyEngineeringProjects Жыл бұрын

I was faced with a choice of cleaning it or not having a good image at all. So I cleaned it and it works fine.

@stephensmall7398 Жыл бұрын

Out of curiosity, what print settings did you use? PLA?

@MyEngineeringProjects Жыл бұрын

I print with PLA and use a few custom settings. Print: .3 mm layer 30% infill Temperature Nozzle first layer 215, other 203 degrees C Bed first layer 65 others 60 degrees C

@demonprincess5634 Жыл бұрын

omg this is so amazing, I'm so going to do this. but what if you wanted to scale up so you can have a larger telescope? but printing your own telescope is just amazing to me and just how little the cost would be from buying one.

@MyEngineeringProjects Жыл бұрын

You should do it, it is so much fun. It's possible to scale any part up or down. I would recommend building the 900/114 mm version first.

@demonprincess5634 Жыл бұрын

@@MyEngineeringProjects I just started printing my first part tonight and it alreally looks great.

@matthewbaker7513 Жыл бұрын

You can scale it up, but larger mirrors are more expensive since you'll have to use parabolic mirrors. Making a small aperture telescope with a spherical mirror is much less problematic and more forgiving than one with a larger aperture.

@rwdavidoff Жыл бұрын

There's a community effort to work parametric versions for other mirror sizes, including an 8".

@naasking Жыл бұрын

I've read that you shouldn't polish the mirrors like that because it will accumulate tiny scratches in the polished aluminium surface.

@MyEngineeringProjects Жыл бұрын

Yes that would be the case if i were touching the reflective surface. In this case however I am just cleaning the glass in front. The mirrored surface is on the back underneath the glass. It is constructed similar to a bathroom mirror.

@naasking Жыл бұрын

@@MyEngineeringProjects I've never before heard or seen a telescope mirror that wasn't a first surface mirror. Regular mirrors that have the reflective surface under the glass cause double images due to internal reflections.

@leafeater5453 Жыл бұрын

I haven't heard of a telescope mirror not having the top aluminized. The light passing through the glass, reflected back out through the glass again would cause a mess of the lightwaves.

@MyEngineeringProjects Жыл бұрын

I was probably wrong about the way it was constructed.

@user-dq8zv9ml4z Жыл бұрын

How do you focus Hadley? Do you adjust the distance between UTA and LTA? Or do you adjust the poker?I made it, but it's out of focus..

@MyEngineeringProjects Жыл бұрын

When you first put it together, put the eyepiece focuser in the middle. Put the LTA near the bottom of the scope. Loosen the UTA screws and look through the eyepiece. Move it up and down until you can see an image. Best to do this in the daytime pointing at a distant object. Now when you get an image, then you tighten the screw and adjust the fine focus with the knob.

@user-dq8zv9ml4z Жыл бұрын

@@MyEngineeringProjectsThank you. I'll give it a try

@AlphaSlide141 4 ай бұрын

is the bottom mirrow bent

@MyEngineeringProjects 4 ай бұрын

It is a spherical shape

@SpiderWaffle Ай бұрын

How easily could this be adapted for a larger mirror, like 203mm/8"

@MyEngineeringProjects Ай бұрын

It would be challenging to do this. If you simply tried to scale the STL, then it would make everything bigger such as the nut holders and holes for the rods. This would break the design. One option is to import the model into CAD and then keep connectors the same but increase the size of the mirror holder and related parts.

@SpiderWaffle Ай бұрын

@@MyEngineeringProjects I was also thinking it would make parts too large for most 3d printers. Would maybe have to divide them into the smaller pieces.

@bonyobondov4364 Жыл бұрын

If I have to buy all your parts list plus electricity and material for the print it will cost me MORE to just buy a ready similar telescope

@MyEngineeringProjects Жыл бұрын

But it's fun to build one

@user-dq8zv9ml4z Жыл бұрын

Can you tell me the type and number of screws you need?

@MyEngineeringProjects Жыл бұрын

Most of them are #10-24 machine screws. I don't have an exact BOM for the entire telescope. I would suggest getting a variety pack plus you will need some longer bolts in certain areas like the lower mirror cell.

@Infamanious Жыл бұрын

Would a 40mm eyepiece Improve the image or is the 23mm the standard calibrated eye piece?

@rwdavidoff Жыл бұрын

The number there is the focal length of the eyepiece. The magnification of the 'scope is the focal length of the full scope (900mm) divided by that of the eyepiece. So a 23mm eyepiece gives a more magnified view of a smaller part of the sky. 900/23 = 39x, 900/40mm = 22.5x. If you want a tighter and more magnified view, you actually want a _shorter_ focal length eyepiece, like a 10mm or even a 6mm (shorter than 4mm is a little problematic with this size of 'scope).

@rwdavidoff Жыл бұрын

To go on a bit more, not all eyepieces of the same focal length do the same thing--they're all basically taking the light fed them by the primary mirror and presenting it to your eye with various optical wizardry, but the way the glass/plastic lenses in the eyepiece work will make them better or worse at it. A 23mm aspheric works okay, but very short focal length aspherics are troublesome, so for a 6mm something like what gets marketed as a "goldline" eyepiece is better.

@MyEngineeringProjects Жыл бұрын

As far as improving the image is concerned, in general the less magnification results in a sharper image. An image from a 40mm eyepiece would be pulled back from a 22mm and the image would be smaller.

@leafeater5453 Жыл бұрын

50X the mirror's diameter in inches will be the THEORETICAL limit of useful magnification of a scope, but several factors reduce the actual resolution to a lower number. Throw in a super high magnification eyepiece but it will become a blurry blob at some point.

@coughcough5839 8 ай бұрын

I know I'm late to the party but the screws that sit at the very bottom wood pannel could maybe use printed knobs

@MyEngineeringProjects 8 ай бұрын

Yes they work great. I printed them out as well and it makes it much easier to adjust.

@k9taxi Жыл бұрын

As the young whippersnappers would say: That's fire man!

@MyEngineeringProjects Жыл бұрын

Totally dude

@demonprincess5634 Жыл бұрын

so i been wondering because this is a open frame telescope. won't you have trouble with unwanted light? you know like cars or street lights?

@MyEngineeringProjects Жыл бұрын

If you are too close to lights, it can affect the image. I've found that finding a darker spot in your yard or whatever is fine in most cases. As long as it is not directly shining on the mirror, it works just fine.

@demonprincess5634 Жыл бұрын

@@MyEngineeringProjects yeah that what i was worred about. I'm in the city so there lots of lights

@MyEngineeringProjects Жыл бұрын

The first week I had this Saturn was not visible in my back yard. I did have a view of it from the sidewalk in front but there are street lights every where. I just went into the shade of a tree and it worked. I saw Saturn for the first time and it looked great.

@leafeater5453 Жыл бұрын

You can put a cloth shroud around the truss.

@MrNinja007 11 ай бұрын

Can I use pvc tubes instead of steel rods?

@MyEngineeringProjects 11 ай бұрын

No that won't work. There is too much flex.

@MrNinja007 11 ай бұрын

@@MyEngineeringProjects okay, thanks :)

@faus2417 10 ай бұрын

what kind of glue was used here to glue the main mirror?

@MyEngineeringProjects 10 ай бұрын

I just used silicone sealant

@faus2417 10 ай бұрын

does it hold up well overtime? is the mirror in danger of falling off ? @@MyEngineeringProjects

@demonprincess5634 Жыл бұрын

oh oh one last thing where can i get the glue that you used?

@MyEngineeringProjects Жыл бұрын

You can use Silicone. I put a link in the product description.

@demonprincess5634 Жыл бұрын

@@MyEngineeringProjects big thanks i just added it to my cart. and thank you for all your help and getting back to me.

@MyEngineeringProjects Жыл бұрын

Glad to help

@hansmustermann03 Жыл бұрын

@@MyEngineeringProjects Hi! I have the same problem -finding the right kind of glue.. So you have used the standard Silicone which is used in the Kitchen or Showers (between the ceramic tiles etc) ? I thought this stuff is´nt adhesive enough for the Primary Mirror.... Maybe some flexible mounting glue would be better? (Thought about UHU Repair MAX) Which type (Manufacturer, Brandname, etc) of silicone did you use ?

@MyEngineeringProjects Жыл бұрын

@@hansmustermann03 There is a product link in the description. Just use any clear silicone. Kitchen and Bath silicone is fine. It does a decent job of holding the mirror in place. I don't remember the exact manufacturer brand I used.

@jorgelima5695 6 ай бұрын

Did you realized that the adjustment of the secondary mirror is over-constrained?

@MyEngineeringProjects 6 ай бұрын

I'm not sure what you mean. The screws allow for full adjustment up, down and all around.

@jorgelima5695 6 ай бұрын

@@MyEngineeringProjects you have one screw in the middle (the one that pretensions the spring) and then three screws around pushing the mirror holder. In short, three points define a plane, any N additional points are N too much. In other words, to adjust the angle of the mirror, you need to loosen one screw before tightening the other. Maybe you are happy on how it works, but the design could be improved. Generally I think the position of the mirror in this design is ill defined.

@MyEngineeringProjects 6 ай бұрын

This is an open source project that anyone can download and/or modify. The telescope works great for a beginner telescope that almost anyone can build themselves. I'm not the designer but you are free to make any modifications that you would like.

@jorgelima5695 6 ай бұрын

@@MyEngineeringProjects I know it's a open source project. Thanks for sharing, btw. My comment was meant as a constructive advice for free. You may take it along or not, it is entirely your choice.

@ToddChevrier 4 ай бұрын

Great 3D print! But, I need to offer some advice...DO NOT ever clean the mirrors with a glass cleaner and cloth....you just wiped away the coating which results in a crappy image. You should only be cleaning the mirrors with distilled water only and never touch the mirrors. You will need to have the mirrors stripped & re-coated.

@MyEngineeringProjects 4 ай бұрын

I had no choice but to clean it. It's better than having to buy a new one. The image is still good so the coating was durable.

@Jack5822 Жыл бұрын

So, people have called the mirrors "glass", and you were cleaning the mirrors with glass cleaner, but there should not be any glass. While most mirrors have glass protecting them, telescope mirrors do not. So when you are cleaning the mirrors, you are also scratching it. If you want/need to clean the mirror there are plenty of videos out there on that. Just don't scratch the mirror with something abrasive like a paper towel.

@MyEngineeringProjects Жыл бұрын

ok. I used a soft cotton cloth.

@demonprincess5634 Жыл бұрын

n000 wood power tools?? i got none of that stuff or the room to get it.😭

@MyEngineeringProjects Жыл бұрын

No worries. There is a 3D printed base you can use instead of a wood box like I built. Here's the link www.printables.com/model/262764-hadley-telescope-rocker-frame