Thinking about it, this thing works on bending forces, right. So where is the bend? Inside the gray area, not in the brass. So the recesses could be something like this: The disc is bending in the small area between the 20 mm diameter recess edge and the 18 mm pressure pad. To make it even more stable, we could the raise the middle of the 20 mm recess up again, so it falls inside the 10 mmby Lykle - General
OK, that was quick. As promised. Here is the one used in the photos. Only difference is that you can order it 12V or 24V, the rest of the specs are the same as mine. Lykleby Lykle - General
I have this one. I am checking to see what Brian used. Will get back to you. Lykleby Lykle - General
Hi, thanks. The recess is already in there, but it has a diam of 28 mm. Now in the discussion with Mike I realise you want a smaller recess?so that there is more bend. What diameter? BTW I shot the files over to Doug, it sounded as if he was going to have a look. Lykleby Lykle - General
OK, DJ, this is going to get complicated. I was working on the effector for Doug, to mount the Nimble on the peizo sensor with a larger effector. This is the overall look. I reverted to 3 acetal posts to guide it all, seems enough and the whole effector is set up in 120 deg anyway. The original design of the clamp worried me a little. 2 pins in one half of the clamp and 2 pins in the other.by Lykle - General
His pipe is 2.5 or 2.3 or so. I am going to be using 2.9 when I get round to it. The pump is pretty big, but still quite quiet. (Hard to write when you are dyslexic) And he has it down to 25% PWM or so. So yes, it does look as if you only need a little bit of air. Lykleby Lykle - General
Looks good. Will be interesting to see how you want to apply the spring tension. Only real problem I see is that you have almost no access to the "ears" of the breech block. You need to be able to squeeze them together to open up the breech. But that is easily solved with a little hinge near where the bolt goes through into the Nimble. Lykleby Lykle - General
What is the expanded length difference? Will this be something that can be absorbed by the flexible coupling at the stepper?by Lykle - Delta Machines
Yeah, in Dutch we call that overdomp!by Lykle - General
Well, clearly the polishing worked as I don't see a turd anywhere. Nice solution for the expanding rods. Certainly better than allowing the top to slide along the walls. But I am interested in why you let them slide at the top? Why not mount them fixed at the top, where the motor also is and have them sliding in the bottom, away from the complexity of having the motor slide up and down as well?by Lykle - Delta Machines
Quoteprot0typ1calOh yea, what flexible drive do you recommend for the nimble? Check our site. " is the green locking part excentric?" Yes it is. And it has a flat side because you rotate it clockwise and then lift out the plate. "Take a look at a camera tripod. " Yes that is exactly where I got the idea, as mentioned in the other post. For sure it is just a simple thought experiment right nby Lykle - General
Wow guys, that is great work. The metal work is great and I love how the final results are looking. Great way to really stretch the boundaries. And Simon, that is quite some speed you can generate now, making the parts. When ever I dive into the workshop I take about an hour just to get up to speed and then I am about 4 x as slow as what you are doing. Loving it!by Lykle - General
Always the voice of reason!by Lykle - General
Yes, the only problem with PEEK is warp. It does not want to stay in shape, while printing. So getting it printed right will need an enclosure with temp control. Lykleby Lykle - General
Again, I cannot emphasise how happy I am with the help and work done by others, the collaborations are really delivering results. last job was a mod to fit 2 Nimbles to the Big Box IDEX option, done by the great Greg himself. Amazing how quickly it was whipped up and he did teach me a new little trick. Learn something new every day. Sure,it is keeping me working till deep in the night as all thby Lykle - General
Yeah sorry Mike, I will ask Brian for some photo's of the cooling rings underneath. All I have is a photo of the effector with the Nimbles and air hose going down into the effector. I will get a pic from below. Lykleby Lykle - General
Ah yes, I see. How does it lock into place? And in the background is a different print head?by Lykle - General
Every now and then you get some interesting ideas pop up at the same time. For instance: A Nimble customer Bob, asked me "If we came up with a cam system for hold downs instead of 2 bolts, that would be fantastic." I was mulling this over for a day or 2 and came up with the solution mentioned in another post. Went to the Duet3d forum to check the discussions there and lo and behold, Deckingmanby Lykle - General
I never thought that for the sake of 3d printing, I would go vape. Ape, yes, vape, no.by Lykle - General
Hmm, Brian is using the pump at 25% PWM, this gives enough cooling and does allow for some nice bridging. He uses simple holes in the ring around the nozzle. Pics coming soonby Lykle - General
Regardless of the result, the images look bloody good! Following with interest.by Lykle - General
Quick note to let you know we started with a new way to show the development of the adapters. All are open for view using Trello. You can see where we are in the stage of development, making it as open and transparent as can be. Have a look if you are interested. Adapter planning If you want an adapter for the Nimble designed, simply go to the request form. All adapters designed by us willby Lykle - General
Hey Mike, progress! Cooling the filament and extruder, I think it is better to limit the amount of cooling air that is shot into the chamber. That way you get the most consistent temperature at the print bed level. Because it might just be that you want to test with no cooling at all going into the print. If you are cooling the filament and extruder, you cannot help but add cooling to the print.by Lykle - Delta Machines
OH man! I have to say I love the way people are jumping in to help. It is great to see how much help is offered and how many new ideas are coming in. This is the way I used to see the 3d community, helping each other improve. The list is growing and thank you guys for helping out so much. I am not going to name them all as the list would be a bit long and I have not received permission froby Lykle - General
I like that hot end, but the small heat capacity worries me a bit. Best thing I like about it, is the fact that it moves away from the Groove mount. Never liked the groove mount, it makes things so cumbersome. Lykleby Lykle - General
Glad to see it is resolved. These puzzles can be quite frustrating. Lykleby Lykle - General
Hmm, I am going to use 2.9 mm tubing. Also, I made a little bending jig for Brian and he managed to get a reasonable good ring in 2.3 mm tubing. The jig still needs a little work, but I am beginning to think that the easiest way to do it is simply bend it by hand, keep tweaking it till it is perfect. Or breaks. :-) The thing that makes it difficult is that I want a really small diameter ring aroby Lykle - General