3D printed Speedmaster case opener.

Posts
497
Likes
2,339
Sorry, wasn't trying to bust your chops with the "like". But maybe wording it like, "Nice. Good job and thanks for the info. For those who don't have a 3D printer you can buy one of Pahawi's made of brass and use it forever." would have been an option.
You’re right. I hope those who try these will write reviews. If it’s strong enough, many could benefit. Maybe call it a travel version.
 
Posts
657
Likes
1,504
My friend just dropped this off to me this morning. We shall see how it goes. He said he made adjustments to the “infill” that the original creator had in the file to add even more rigidity for the teeth. Don't know exactly what it costs in material because I pay him for AR magazine speed loaders so the little $5-$10 stuff I ask for he doesn’t charge me.

 
Posts
1,033
Likes
1,896
Hmm, print orientation is pretty important here. Stacked layers like that are likely to shear off when higher torque is needed to open a case. If it can be printed on it's side, that should be stronger. Supports may be needed, or breakaway fillets.
 
Posts
5,436
Likes
9,305
Hmm, print orientation is pretty important here. Stacked layers like that are likely to shear off when higher torque is needed to open a case. If it can be printed on it's side, that should be stronger. Supports may be needed, or breakaway fillets.
I suspect it is a lot easier to print in this orientation. If the shear is in fact an issue, it may be possible to reinforced them by driving in (and countersinking) metal pins.
 
Posts
1,954
Likes
3,539
I never though that in my lifetime I would see something that totally blew me away except a Star Trek transporter but 3D printing is something I never would have imagined. It’s so cool
 
Posts
657
Likes
1,504
Hmm, print orientation is pretty important here. Stacked layers like that are likely to shear off when higher torque is needed to open a case. If it can be printed on it's side, that should be stronger. Supports may be needed, or breakaway fillets.

Only one way to find out! Usage and time will tell. Testing free equipment/tools is less stressful than buying them ha ha.
 
Posts
891
Likes
1,288
The orientation of the fiber in the part tell me where is gonna break since you apply a rotation on the pin.
Since you created the file (BTW, the design looks very nice) you can print the part with service like shapeways in metal (they have several option).
 
Posts
92
Likes
255
Bit off topic - I would be careful using Omega logo, no matter if it´s only for own use.
 
Posts
5,436
Likes
9,305
It is the greek letter 'omega'. Does Omega really have the rights over anyone using the letter 'omega'? I've seen omegas on many objects over the years.
 
Posts
416
Likes
673
These 3D printed case openers are fantastic. Definitely need to talk to my colleges at work!
 
Posts
891
Likes
1,288
As long he doesn't make money out of it, he should be fine.
 
Posts
416
Likes
673
Not what I’m aiming for. The IT guys in our office have a 3D printer 😉
 
Posts
2,832
Likes
9,172
Bit off topic - I would be careful using Omega logo, no matter if it´s only for own use.
Yeah, the Greeks gonna come after you for the $$$ 😲
 
Posts
657
Likes
1,504
@mancio @Tatu file isn’t mine. I didn’t create anything. I simply directed my friend to the link the OP here posted and asked him to see what he could do. That is all.
 
Posts
7,075
Likes
13,183
So, does it work, especially on a tight back? 3D printing is cool and all that but if the product isn't strong enough to do the job it isn't of much use. Let's see some action shots!
 
Posts
1,033
Likes
1,896
Just for fun, I remixed the wrench with a couple of modifications. First is making it round with edge-knurling instead of a lever-arm. Second is adding a 3/8" socket/torque wrench drive hole in the back side if additional leverage is needed. The indexing on the 'top' came with the example I used for the knurling, so I left it in case it's useful. It's not fit to print in this orientation without supports, but if anyone is interested they can have it.


[Disclaimer: I do not have a 3D printer and have not used this on any watch. Print & use at your own risk.]
 
Posts
1,511
Likes
2,589
This reminds me of some of the case openers I've made for a couple of vintage watches.
I've attached some photos of the design I use. It doesn't require any supports, uses minimal material, and has reinforced opening "fingers" that are highly unlikely to break off.

This particular one is sized for 50s screwback Seamasters and Constellations, 2652s and the like.
View attachment 785533

If anyone wants an STL file, perhaps for a Speedmaster or something, just send me a PM and I'll get back to you with a workable, printable file.

If you want to print one yourself, I'd recommend taking a look at local libraries or colleges. At least in my area, many have been acquiring 3D printing "makerspaces" which curious neophytes can use for free or a very low fee.
Edited: