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OUTOFDARTSSHOP / Rival-Juno-Blaster

Files for the Juno from Out of Darts.
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Ball Detents #6

Open nustherapy opened 8 months ago

nustherapy commented 8 months ago

Greetings,

I am starting my Juno build and have printed the Juno-Mag-Battery-3m-Brass_V5.stl main body. When installing the ball detents there is no mention of using any glue or anything like that in the assembly guide however when putting them in place they fall out if the body is flipped upside down. Is it expected that they are friction fit, or should super glue or some other adhesive be used to hold them in? For what it's worth this was printed on a standard Prusa MK3S, with the .20 layer profile, with 5 walls, and 25% infill.

I have inserted the hex nuts, and square nuts into the top and bottom center, and these are all snug tight fits.

Turokhunter commented 8 months ago

Hey, Sorry for the delay; I've been sick. You can use a bit of super glue to hold them, but be careful not to get any glue on the ball or inside the ball dedent through the small hole on the bottom.

Yes, they are normally friction fit for me. I know Luke and the team glue their detents, and I bet when the video comes out, he will make that suggestion.

nustherapy commented 8 months ago

Thanks so much for getting back to me on this and I hope you will be feeling well soon!

I do think this would be a good note to add to the documentation, which otherwise has been great!

It is a bit of a challenging location to manage superglue especially with the concerns of impacting the functionality of the detent itself. In other builds I've used 'poster putty' to holds springs in place mostly for ease of assembly, however I wonder if that may also be enough to work in this scenario as well.

Turokhunter commented 8 months ago

I appreciate it. I will add it to the manual.

I'm not sure about poster putty. You only need to hold it in place while a mag is not installed. Maybe you can take advantage of the hole on the outside? Otherwise, to install with super glue, apply a very small amount on the outside casing before inserting it into the body. Then, with a paper towel, wipe up any glue that leaked out either hole.

nustherapy commented 8 months ago

So I decided to give the poster putty a try, I rolled up a little ball of it and dropped it into the hole for the detent and then simply pressed the detent in. As I did that a bit of excess putty came out of the hole which I just flattened and removed. This seemed to hold really well (which isn't that surprising as when I use this on springs is always holds them well)! I was able to hold the part upside down and knock it around a bit with my hand and the detents held securely in place. I then tested with a mag, inserting/removing a number of times and again trying to knock them out of place and still held in place. Now time will tell how environmental conditions impact this or if the putty will deteriorate but for me I'm willing to take the risk. I can certainly understand where you may not advise this in the official documentation without fully testing, especially as it's known that super glue will just work but just thought I would share my experience.

As a side note, for what it's worth I'm so happy this design/build was made available for hobbyists to print on their own, once I saw the files for this would be available to print myself, I made sure to get myself a hardware kit in short order!

Turokhunter commented 8 months ago

It's great that it worked out. Keep me updated on how it fairs in use.

I am really happy to hear that. With A1 and other more consumer-friendly printers, I think this is the general direction that all 3d printing is going. I don't think we will be doing this with every design. It will depend on whether the designer wants to release their files and if it makes sense to do so. The next one I'm looking into is Herja version 1.2. I think that Blaster would work well for the community to mess with and there few improvements we can make (it might change the shape).