<![CDATA[SoliForum - 3D Printing Community — Japica J-Rev]]> https://www.soliforum.com/topic/1943/japica-jrev/ Tue, 09 Apr 2013 11:53:14 +0000 PunBB <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/19038/#p19038 Japica took the criticism pretty badly... Their site now just says "Sorry - Japica is no longer accepting business."

]]> Tue, 09 Apr 2013 11:53:14 +0000 https://www.soliforum.com/post/19038/#p19038 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/19037/#p19037 Yeah, +1 on the video too. Gives me the creeps

Have a look at teh timeline at:
http://www.facebook.com/pages/Japica/232723350073764

Japica
den 21 juli 2012
Going to be able to extrude around 50 new materials in a few months. (hint, a couple of the new materials are metal)


"Holy Japica Batman!"

]]> Tue, 09 Apr 2013 11:46:47 +0000 https://www.soliforum.com/post/19037/#p19037 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/19032/#p19032 Novel idea, but the size of the printer isn't really a concern so they are trying to solve a problem that doesn't really exist, which as every says would have some nasty Z banding issues

However, I really do want a printer that is covered in leather. Would I rather have some filament with my printer? NO, I want a leather cover!

+1 for the worst kickstarter video I have seen smile amusing but just shocking.

]]> Tue, 09 Apr 2013 11:19:46 +0000 https://www.soliforum.com/post/19032/#p19032 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/19030/#p19030 http://www.kickstarter.com/projects/jap … n/comments

Campaign canceled, maybe the truth caught up a little too soon?

]]> Tue, 09 Apr 2013 10:37:22 +0000 https://www.soliforum.com/post/19030/#p19030 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18736/#p18736 Rondavouz wrote:

http://www.kickstarter.com/projects/jap … ref=search
there is a video of it and it is wobbling like crazy when they raise/lower the Z axis.....
have a look at the 2:18-2:19 mark, it is very clear. For the resolution they talk about, I would really like to see the thing print an straight tower all the way from top to bottom...

I guess in all fairness it would have that kind of resolution..... just not relative to the previous layer...

]]> Fri, 05 Apr 2013 20:45:42 +0000 https://www.soliforum.com/post/18736/#p18736 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18734/#p18734 http://www.kickstarter.com/projects/jap … ref=search
there is a video of it and it is wobbling like crazy when they raise/lower the Z axis.....
have a look at the 2:18-2:19 mark, it is very clear. For the resolution they talk about, I would really like to see the thing print an straight tower all the way from top to bottom...

]]> Fri, 05 Apr 2013 20:27:29 +0000 https://www.soliforum.com/post/18734/#p18734 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18654/#p18654 We can only hope so but its a telescoping z so any slop in each part is going to stack as it gets higher and higher.  They also have some pretty lofty claims of accuracy.


    Up to 300 mm/s print speed (Up to 600 mm/s if stretch goal reached)
    20 Micron layer heights (10 Micron layers if stretch goal reached)
    Can do layers up to 250 microns if chosen (Fast low quality print..)
    Down to at least 80 micron feature widths (Recommend 300 microns for accuracy)

]]> Fri, 05 Apr 2013 04:15:59 +0000 https://www.soliforum.com/post/18654/#p18654 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18550/#p18550 For the starter price of 2500.00 (with all the parts), I am sure they have pretty decent z leadscrews... or at least they ought to for that kind of money smile

]]> Thu, 04 Apr 2013 06:37:19 +0000 https://www.soliforum.com/post/18550/#p18550 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18548/#p18548 Looks like a h-bot style xy and a little skeptical of them getting that z axis to work well.  Marlin does support h bots already with corexy ibut I hear that there are a few bugs with it.

]]> Thu, 04 Apr 2013 05:30:44 +0000 https://www.soliforum.com/post/18548/#p18548 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18540/#p18540 Although it is a novel concept, I agree with you guys, seems a little off. I will be waiting on Gigabot to launch & hopefully able to squeeze out the dough for it. 24"x24"x24" with 100 mincron layer capability for likely about 2k?

Sweet.

http://www.kickstarter.com/projects/re3 … is-is-huge

]]> Thu, 04 Apr 2013 03:00:26 +0000 https://www.soliforum.com/post/18540/#p18540 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18513/#p18513 If you can stand the schlock presentation (these guys spent too much time reading prompt cards to put any genuine emotion into their presentation) you can see what looks like a functional design (2:12 in the video).  I'm not saying that this is an actual working model, but it seems that it would take a LOT of time to build a 3D working mockup to show the concept and if this is just an animation they spent a heck of a lot of time on detailing the models.

I do have one thing to say, watching the video, the lighting flickers inconsistantly almost like it was time-lapsed.  Also, you can see a LOT of wobble on the top platform.  I don't think I'd trust this as there would be a lot of wobble on the print from the side to side sway, even more than what I saw with my bent leadscrew.

]]> Wed, 03 Apr 2013 21:30:09 +0000 https://www.soliforum.com/post/18513/#p18513 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18501/#p18501 cckens wrote:

From what I can eyeball-reverse engineer, the system has the x-y axis motors on the top platform.  This covers that plane and allows for movement across the build platform.

But the problem is, if you have your x-axis motor on the z platform, how to do get a belt from the motor up onto the z-carriage and not have it affected the the carriage y-motion?  I don't see a mechanism (like a long keyed rod and sliding gear) that would accomplish this.

Furthermore, how would one power the extruder and motors with no wires and no logic board?

Lastly, those plastic telescoping bolts appear to just be plastic sleeves that are threaded on the inside and outside.  Interesting in concept but they would sway like a stack of tin cans if an actual print head tried to move on them.  The range of motion looks way too tall to have a supporting bolt in them, which--even if present--would still need diagonal support or a full frame to support them like all other printers.  None of these are present.

IMHO, this is clearly a non-functional mockup at best.

]]> Wed, 03 Apr 2013 20:34:41 +0000 https://www.soliforum.com/post/18501/#p18501 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18500/#p18500 Think of the backlash multiplied out over a set of 4 telescoping bolts.  I think they're in theory mode right now but not practice mode.  I'd be happy to eat my words if this actually pans out because it's a novel concept.

]]> Wed, 03 Apr 2013 20:29:30 +0000 https://www.soliforum.com/post/18500/#p18500 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18479/#p18479 They said in the video that they developed the bolts in-house, so someone took a bunch of theory and applied it to design and came up with a workable solution.

]]> Wed, 03 Apr 2013 18:48:57 +0000 https://www.soliforum.com/post/18479/#p18479 <![CDATA[Re: Japica J-Rev]]> https://www.soliforum.com/post/18471/#p18471 when I search telescopic bolts... the only thing i can find is related to gun.

where can you find this bolt that is as long as in that photo?

]]> Wed, 03 Apr 2013 18:08:15 +0000 https://www.soliforum.com/post/18471/#p18471