Zesty Nimble Direct Drive extruder launched on KS
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Wow.. this is the first time I looked into Open Scad. WOW… What a boondoggle of a program. I would never be able to design efficiently with that program as compared to other CAD software. Its almost like a programming software for geeks that is done with CAD.
Well not exactly for geeks. I'm a 63 year old carpenter and had never used any sort of CAD software in my life, but I had written a bit of code as a hobbyist. I managed to teach myself OpenScad last year, at least enough to design my new printer. The code might not be pretty or as efficient as it could be, but I get the job done. I wouldn't know where to start with more conventional CAD software.
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Yeah I've only ever really got to grips with Tinkercad, but the more I use it, the more I find I'm entering parameters rather than using the mouse and I suppose that's how open scad works.
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Try Autocad Fusion 360. It is light years better since its graphical. I use CAD software everyday and OpenScad is not user friendly. There are lots of training videos online. If you can figure out OpenSCAD, the other tools would be a breeze. It is a lot more intuitive. Personally, I prefer Creo since I use it at work, but most general users can't afford the license for that software.
You basically add extrusions, holes, cuts, revolves, etc. Very easy tool to learn once you get the basics down. I think it would be good for you longer term to use it since it would make you a lot faster and more productive.
I haven't tried it, but Onshape looks like another good alternative.
https://www.onshape.com/ -
I Do the majority of my Cad stuff with FreeCad but going to have a go with Fusion 360 mainly cos of the included CAM Module so that it works for my CNC as well.
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Funnily enough my first ever model was with OpenSCAD, but I admit I personally gravitate to Tinkercad for most quick things, the beta version is a lot nicer with it's ability to enter parameters for measurements at least (I wist there was a way to convert older projects to use the beta version).
I have used OnShape and it's awesome to use collaboratively, currently trying to get up to speed with Fusion 360.
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Funnily enough my first ever model was with OpenSCAD, but I admit I personally gravitate to Tinkercad for most quick things, the beta version is a lot nicer with it's ability to enter parameters for measurements at least (I wist there was a way to convert older projects to use the beta version).
I have used OnShape and it's awesome to use collaboratively, currently trying to get up to speed with Fusion 360.
2X on the OnShape software. It is very powerful for design.
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Fusion 360 will be standard for product design in a few years!
They have FEA simulation of the following: static stress, resonant frequency, thermal (how things heat up), and thermal stress (how things warp when hot). They will soon have fluid flow simulation as well (and possibly others).
They will soon have sheet metal design tools, and even generative design tools which will test a part and reduce it to its minimum required shape/thickness.
They have built-in HSMexpress (CAM), built-in raytracing (photo-realistic rendering), etc etc.
If anyone hasn't tried Fusion 360 yet, I would highly recommend it.
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I also vote for fusion, i use it evryday on my work for product design and 3d printing. It generate good mesh without error.
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Back to the Nimble, just to let you know we posted an update.
One that is very relevant to this forum. Here is a snippet:We feel a need to celebrate the fact that we've now hit 100 backers.
We have been developing and testing several further improvement to the Nimble since before the campaign started, We are trying to figure out which of these to share with now. Should it be about weight, the breach system update or something else. Hard to choose.Let's pick something else. We are developing add on's for the Nimble. The first one to come is probably a filament sensor which is under development together with David Crocker. You will be able to clip it onto the Nimble and it will tell you when the filament stops moving, either because of a break, jam or you simply ran out of filament. This is NOT a stretch goal as it will not be ready in time, but we are trying to get there as fast as we can. We think it is a nice addition to the Nimble, and hope you agree.
Nice, yes?
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Hi the filament sensor will it be a simple run-out sensor or a means of measuring filament fed?
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Hi the filament sensor will it be a simple run-out sensor or a means of measuring filament fed?
We're expecting to implement both
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Hi all,
We've just made a significant announcement, something we've been working on since before the campaign launched. An improved breech system, you can change filament over with one hand, and the Nimble now 15% lighter!
https://www.kickstarter.com/projects/lykle/super-light-and-easy-to-use-extruder-for-your-3d-p/posts/1719422Videos of the key change can be found at:
https://www.kickstarter.com/projects/lykle/super-light-and-easy-to-use-extruder-for-your-3d-p/posts/1723021Cheers
Brian -
We were invited on to the Crowdfunding Cast podcast, feel free to have a listen:
http://crowdfundingcast.tk/crowdfunding-cast-episode-477-zesty-nimble/Also, if any of you live in Melbourne Australia, I'll be demoing the Nimble live on Monday at CCHS:
https://www.meetup.com/Connected-Community-HackerSpace-Melbourne/events/235318771/ -
I signed up to KS just to back this project, even though I don't yet have a 3D printer of any sort. I'm planning on building a large Delta based on the Hexagon V2 (http://wiki.fablab-karlsruhe.de/doku.php?id=projekte:hexagon_v2), but made with 2060 extrusions for extra beefiness & expansion options, a circular bed (not square), and with the DuetWiFi for the brains.
I would've loved to be able to pledge for 3 Nimbles so that I can then get a Diamond Hotend built in from the start, but sadly am currently only able to set aside enough for one and hope that the KS meets it's goal so that I can get the other two once I can afford it.
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Retraction hell Nimble test print (Passed!): https://www.reddit.com/r/3Dprinting/comments/5crmyy/retraction_hell_test_print_pass/
Youtube video for most of the print will be getting uploaded as soon as possible.
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So talking of retraction what speed retraction can you achieve? And what motor/current setting is this. I know it took a fair amount of trial and error with my flex3drive to achieve a balance between fast enough retraction and motor current. What is your overall gear ratio between drive gear shaft and the motor?
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Here is the video
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So talking of retraction what speed retraction can you achieve? And what motor/current setting is this. I know it took a fair amount of trial and error with my flex3drive to achieve a balance between fast enough retraction and motor current. What is your overall gear ratio between drive gear shaft and the motor?
The ratio is listed on our KS campaign, it's 30:1
I also spoke with David Crocker about extrusion and retraction speeds he suggested that more than 5mm/sec is largely pointless (which is confusing give the web interface defaults), though I have run at up to 10mm/sec as well.
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I also spoke with David Crocker about extrusion and retraction speeds he suggested that more than 5mm/sec is largely pointless (which is confusing give the web interface defaults), though I have run at up to 10mm/sec as well.
I made that remark in the context of using 1 to 2mm retraction, because I thought that with such a small amount of retraction there isn't sufficient accelerate/decelerate distance to reach high speeds. However, I've now done the sums and if the extruder acceleration is 1000mm/sec^2 then it turns it that with 2mm retraction you can reach 45mm/sec. I don't know whether higher speeds help or not when using small amounts of retraction in a direct drive extruder, because I don't have one.
If you use a conventional extruder with a long Bowden tube and much longer retraction distances, then higher retraction speeds are certainly worthwhile.
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@dc42 thanks for the clarification David.
@DjDemonD given we're only seeing the need for 1mm or less retractions then what I said still stands I believe.
These are the settings I have in firmware at the moment:
[[language]] M201 X1000 Y1000 Z1000 E1000 ; Accelerations (mm/s^2) Set all E-motors the same M203 X10000 Y10000 Z10000 E3600 ; Maximum speeds (mm/min) Set all E-motors the same M566 X1200 Y1200 Z1200 E1200 ; Maximum instant speed changes mm/minute. Set all E-motors the sameI also spoke with David Crocker about extrusion and retraction speeds he suggested that more than 5mm/sec is largely pointless (which is confusing give the web interface defaults), though I have run at up to 10mm/sec as well.
I made that remark in the context of using 1 to 2mm retraction, because I thought that with such a small amount of retraction there isn't sufficient accelerate/decelerate distance to reach high speeds. However, I've now done the sums and if the extruder acceleration is 1000mm/sec^2 then it turns it that with 2mm retraction you can reach 45mm/sec. I don't know whether higher speeds help or not when using small amounts of retraction in a direct drive extruder, because I don't have one.
If you use a conventional extruder with a long Bowden tube and much longer retraction distances, then higher retraction speeds are certainly worthwhile.
