New to 3d printing with smartrap need some help
Posted by duranza
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Re: New to 3d printing with smartrap need some help June 07, 2014 03:42AM |
Oh no... your not using Netfabb are you? 
Actually, that's a pretty good job modeling Reg. Among the best I'v seen coming from that software. You must be well practiced at it.
Folds on surface are a tough thing to avoid for any mesher and sad to say, Netfabb spares no horses laying them on, but only 3 degenerated faces, two on the extruder block and one on the bearing block, and only 2 self intersections on the big gear. None of them are "show stoppers". I have seen some horrible models produced with that software. Yours is a wonderful exception. Well done! (and thanks for the upload) I might just give it a try.
@duranza - Another thing that can really put a drag on the Bowden feeding chain are kinks and sharp bends in the filament. I have a role of black that looks like it was run over with a tank! If your filament is kinked and bent like that, straightening it out will help a boat load too.
Mark
Actually, that's a pretty good job modeling Reg. Among the best I'v seen coming from that software. You must be well practiced at it.
Folds on surface are a tough thing to avoid for any mesher and sad to say, Netfabb spares no horses laying them on, but only 3 degenerated faces, two on the extruder block and one on the bearing block, and only 2 self intersections on the big gear. None of them are "show stoppers". I have seen some horrible models produced with that software. Yours is a wonderful exception. Well done! (and thanks for the upload) I might just give it a try.
@duranza - Another thing that can really put a drag on the Bowden feeding chain are kinks and sharp bends in the filament. I have a role of black that looks like it was run over with a tank! If your filament is kinked and bent like that, straightening it out will help a boat load too.
Mark
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Re: New to 3d printing with smartrap need some help June 11, 2014 07:15AM |
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heyzeus
The j-head lite doesn't need a fan, so I wouldn't worry about it.
Mine Jhead lite v2 needed cooling fan, or it was melting the arm holder. More specific, the arm was starting to be like a rubber or plasticine
Right now Im using one of the RegPye's hotend as tester, and I must say that it's just greate design. I will post some specific review after some more prints and tests.
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Re: New to 3d printing with smartrap need some help June 11, 2014 01:24PM |
I don't know this. I tought it was assembled by myself right.
It was starting to get too much hot after more than 2h of printing. Now it's lying on the shelf. I will mount when I will build second smartrap, someday soon
It was starting to get too much hot after more than 2h of printing. Now it's lying on the shelf. I will mount when I will build second smartrap, someday soon
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Re: New to 3d printing with smartrap need some help June 13, 2014 03:51PM |
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duranza
What software do you guys use to modify STL files? I'm trying to redesign the front plate where the hot end goes.
Thanks,
Jonathan
FreeCAD
Convert mesh into shape, make shape solid, perform operations, export as .stl. Easy...
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Re: New to 3d printing with smartrap need some help June 13, 2014 10:13PM |
The tube it comes with goes all the way down in the barrel. You cut it off flush with the top of the ptfe holder. You will use a m4 nut on your 4mm ptfe tube to mount it to the hotend holder.
Edited 1 time(s). Last edit at 06/13/2014 10:16PM by madmike8.
Edited 1 time(s). Last edit at 06/13/2014 10:16PM by madmike8.
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Re: New to 3d printing with smartrap need some help June 13, 2014 10:48PM |
That this tube that comes with the J head light is for lining the barrel only. Here is a quick 3D view I did, (in FreeCAD, not to scale).
The tube, white, goes through the barrel and is cut flush at both ends. It is only there to allow the PLA to slide thrugh the barrel without sticking to the steel or expanding into the crack between the threaded steel part and the plastic part inside where they join. The Bowden tube, as in the pic below stops flush with the top of the j head barrel and the filament just passes between the two. I just have a 4 mm nut holding my Bowden tube in place, while the filament passing between them keeps it from sliding apart.
Oh, and to rotate your 3D view in FreeCAD - Shift + right mouse if you are in CAD navigation, or Middle button + Right button mouse will rotate as well. Just middle button pans as well as Ctrl + right mouse.
This Wiki page will explain it all - [www.freecadweb.org]
Mark
The tube, white, goes through the barrel and is cut flush at both ends. It is only there to allow the PLA to slide thrugh the barrel without sticking to the steel or expanding into the crack between the threaded steel part and the plastic part inside where they join. The Bowden tube, as in the pic below stops flush with the top of the j head barrel and the filament just passes between the two. I just have a 4 mm nut holding my Bowden tube in place, while the filament passing between them keeps it from sliding apart.
Oh, and to rotate your 3D view in FreeCAD - Shift + right mouse if you are in CAD navigation, or Middle button + Right button mouse will rotate as well. Just middle button pans as well as Ctrl + right mouse.
This Wiki page will explain it all - [www.freecadweb.org]
Mark
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Re: New to 3d printing with smartrap need some help June 13, 2014 10:50PM |
Well, looks like others posted while I was typing. so yea, what they said.
so yea, what they said.
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Re: New to 3d printing with smartrap need some help June 13, 2014 11:44PM |
Here is the servoless mount I designed. - [www.thingiverse.com]
It even has FreeCAD files. The ones you want are
New_X_End_Mount_Left.stl OR New_X_End_Mount_Right.stl
New_jhead_X_Mount_Arm_Left_V01- OR New_jhead_X_Mount_Arm_Right_V01-
New_jhead_X_Retainer_30mmFan.stl
These fit the Ohio Plastics J Head Light and mount it at the right height.
Mark
Edit- While the interface may differ from SolidWorks, the parametric history based modeling technique is pretty parallel. Once you get the interface down, (it's really not that hard), everything else will fit in with your Solidworks experience. Well, FreeCAD won't do some of that "black magic", like extrude face to face stuff (yet) but all the basics are there. Oh,and fillets may prove to be a bit weaker, but even SolidWorks has some problems with them, so...
Edited 1 time(s). Last edit at 06/13/2014 11:52PM by markstephen.
It even has FreeCAD files.
The ones you want are New_X_End_Mount_Left.stl OR New_X_End_Mount_Right.stl
New_jhead_X_Mount_Arm_Left_V01- OR New_jhead_X_Mount_Arm_Right_V01-
New_jhead_X_Retainer_30mmFan.stl
These fit the Ohio Plastics J Head Light and mount it at the right height.
Mark
Edit- While the interface may differ from SolidWorks, the parametric history based modeling technique is pretty parallel. Once you get the interface down, (it's really not that hard), everything else will fit in with your Solidworks experience. Well, FreeCAD won't do some of that "black magic", like extrude face to face stuff (yet) but all the basics are there. Oh,and fillets may prove to be a bit weaker, but even SolidWorks has some problems with them, so...
Edited 1 time(s). Last edit at 06/13/2014 11:52PM by markstephen.
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