tag:blogger.com,1999:blog-4339813531032979196.post969182168064962089..comments2024-02-28T07:32:59.864+00:00Comments on HydraRaptor: Mendel90 design improvementsnopheadhttp://www.blogger.com/profile/12801535866788103677noreply@blogger.comBlogger38125tag:blogger.com,1999:blog-4339813531032979196.post-53199998179248735792015-09-13T18:16:49.662+01:002015-09-13T18:16:49.662+01:00If Inkscape isn't in the path, sheets.py will ...If Inkscape isn't in the path, sheets.py will abort on the first _dxf it finds and in this case it only processes the frame. Adding to the path and rebooting will allow the remaining dxfs to be generated.veng1https://www.blogger.com/profile/14425823317615819071noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-6418688093568327942015-09-13T17:28:28.805+01:002015-09-13T17:28:28.805+01:00The sheets are in the zip but none are made but th...The sheets are in the zip but none are made but the frame, at least so far.veng1https://www.blogger.com/profile/14425823317615819071noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-85660492633120894002015-09-13T17:26:16.704+01:002015-09-13T17:26:16.704+01:00Never Mind. It appears that I had an older versio...Never Mind. It appears that I had an older version of the GitHub zip running.veng1https://www.blogger.com/profile/14425823317615819071noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-24292776777038476272015-09-13T16:54:23.248+01:002015-09-13T16:54:23.248+01:00I find the frame base dxf but not the dxfs for the...I find the frame base dxf but not the dxfs for the other parts that might typically be CNC cut. Is it intentional they are not generated? I think I can follow through and do it myself but I was just wondering.veng1https://www.blogger.com/profile/14425823317615819071noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-41443923466281478722015-09-13T16:14:39.308+01:002015-09-13T16:14:39.308+01:00Thank you. I was looking in vitamins.scadThank you. I was looking in vitamins.scadveng1https://www.blogger.com/profile/14425823317615819071noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-47380788616576111482015-09-13T15:57:09.997+01:002015-09-13T15:57:09.997+01:00The sheet thicknesses are defined here: https://gi...The sheet thicknesses are defined here: https://github.com/nophead/Mendel90/blob/master/scad/vitamins/sheet.scad.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-72290637558823879972015-09-13T15:20:23.799+01:002015-09-13T15:20:23.799+01:00Again, I second all of the compliments on sharing ...Again, I second all of the compliments on sharing this excellent design.<br /><br />I have the design running properly in OpenSCAD but am missing a few key concepts. I'd like to be able to consider thicker Dibond but nowhere do I see where the thickness of that or even the MDF defined. Could you point that out, please?<br /><br />Thanks.veng1https://www.blogger.com/profile/14425823317615819071noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-53959163336863683102014-08-20T00:18:41.135+01:002014-08-20T00:18:41.135+01:00I did a blog of my build if your interested :)
ht...I did a blog of my build if your interested :)<br /><br />http://cylonmike.blogspot.co.uk/2013/03/mendel-90-build.html<br /><br />Anonymoushttps://www.blogger.com/profile/09198042404662993164noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-13214841074814997382014-03-01T11:42:32.338+00:002014-03-01T11:42:32.338+00:00The E3D will fit the existing mount because it is ...The E3D will fit the existing mount because it is the same groove mount as used on the J-Head. It is longer so it will reduce the maximum build height. The fan duct in the kit will not fit around it so if you want to print PLA you would need to find some other way of cooling the object. Also some people have problems printing PLA with it, so I do not recommend it for PLA. See my comments here: http://forums.reprap.org/read.php?1,197736,310387#msg-310387 and here: http://forums.reprap.org/read.php?1,197736,311520#msg-311520.<br /><br />Possibly it can melt faster but I don't print at speeds where melt speed is the limiting factor. The extruder is designed for 3mm because 1.75mm filament costs about twice as much from the companies I buy filament from.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-23314881396353431012014-01-03T18:38:05.367+00:002014-01-03T18:38:05.367+00:00T5 pulleys are printable and pulleys don't giv...T5 pulleys are printable and pulleys don't give backlash unless the teeth are too small.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-6072631424004618082014-01-03T18:06:10.953+00:002014-01-03T18:06:10.953+00:00Hi nop head,
First of all, happey new year !.
Can ...Hi nop head,<br />First of all, happey new year !.<br />Can I make you a copule of questions ? <br />Why do you use T5 belts ?<br />GT2 belts aren't more accurate ? (have less backlash ??)<br />Thanks very much.<br />Regards<br /><br />Juan Juanhttps://www.blogger.com/profile/17162025260977591560noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-2139500337694531352013-12-15T12:17:37.630+00:002013-12-15T12:17:37.630+00:00Or google Mendel90 for sale!Or google Mendel90 for sale!nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-49183556206482463022013-12-15T12:16:45.730+00:002013-12-15T12:16:45.730+00:00Yes they are still for sale, see http://forums.rep...Yes they are still for sale, see http://forums.reprap.org/read.php?94,196585nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-47927835200902769592013-12-14T18:07:49.668+00:002013-12-14T18:07:49.668+00:00Are the kits still for sale? I can't find a sa...Are the kits still for sale? I can't find a sales link anywhere. I'd love to buy one :)Eximiushttps://www.blogger.com/profile/04005488986886629396noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-91629942917804558352013-11-25T14:39:10.996+00:002013-11-25T14:39:10.996+00:00No die swell does not change the volume, so the fl...No die swell does not change the volume, so the flow rate has to stay the same. All that happens with die swell is the plastic comes out wider than the nozzle aperture and correspondingly shorter when extruded into free air. When you build an object you can't extrude tracks bigger than the die swell area because it would want to come out the nozzle longer and thinner that the track. So you end up trying to compress it lengthways instead of stretching it. That makes it squirm and wiggle instead of being pulled tight. <br /><br />The nozzle aperture and the die swell of the plastic dictate the maximum cross section you can extrude and together with a minimum W/T value of about 1.5 for strength dictates the maximum layer height.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-12858072180522690722013-11-25T14:06:52.141+00:002013-11-25T14:06:52.141+00:00Sorry I did not understand. You can increase flow ...Sorry I did not understand. You can increase flow to compensate less die swell. Yes? Or f.e. set filament diameter less. - 2.7mm insteed of 3mm or smth. And no need to jump to 0.45 nozzle... Am I wrong?karabashttps://www.blogger.com/profile/08599619339602762391noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-49781089531001524762013-11-11T14:01:10.682+00:002013-11-11T14:01:10.682+00:00Love my Sturdy Mendel90. In December it'll be ...Love my Sturdy Mendel90. In December it'll be a year. Thanks for continuing to post updates. I think it might be time to print some upgraded parts.<br /><br />Quick questions. Have you thought about creating a setup for direct drive? Personally i'm looking to add a EZStruder in the next couple months. After doing some research it looks like the best option if I want to print with 1.75. Plus I love the simple design.<br /><br />Also let me join the others and say Raspberry Pi with Octoprint is amazing. Being able to watch and manage my printer anywhere in the house has been a godsend.Lions3https://www.blogger.com/profile/08766152005108793609noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-38644355860515317332013-10-31T15:57:18.487+00:002013-10-31T15:57:18.487+00:00module frame_base_dxf is on line 923 of main.scad....module frame_base_dxf is on line 923 of main.scad.<br /><br />Have you tried building one of the standard configurations before your own? If that works there must be a syntax error in your configuration file.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-30682390388330436882013-10-31T15:45:20.820+00:002013-10-31T15:45:20.820+00:00Oh, and there's only a filr frame_base_dxf.sca...Oh, and there's only a filr frame_base_dxf.scad in the newly made sheets folder.Ralf Steckhttps://www.blogger.com/profile/10134589216672659815noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-5401274432744391712013-10-31T15:40:22.427+00:002013-10-31T15:40:22.427+00:00Hi Chris,
it's 2013.06, freshly installed. Op...Hi Chris,<br /><br />it's 2013.06, freshly installed. Openscad.log says:<br /><br />Parser error in line 2617: syntax error<br /><br /> compiled module: 0<br />WARNING: Failed to compile library 'C:/Mendel90-master_neu/dibondhoch/sheets\../../scad/main.scad'.<br />WARNING: Ignoring unknown module 'frame_base_dxf'.<br />Current top level object is not a 2D object.<br />Ralf Steckhttps://www.blogger.com/profile/10134589216672659815noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-71833233853024979142013-10-29T19:13:06.855+00:002013-10-29T19:13:06.855+00:00To get a detailed error message have a look at ope...To get a detailed error message have a look at openscad.log.<br /><br />My guess would be that you haven't got a new enough version of OpenScad. The required version is in the README. The latest Mendel90 code makes use of features introduced in June.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-56287205938589660372013-10-29T16:30:14.045+00:002013-10-29T16:30:14.045+00:00Hi Chris,
I tried to compile the newest version (...Hi Chris,<br /><br />I tried to compile the newest version (I succeeded with the old one) but with the following error:<br /><br />C:\Mendel90-master_neu>make_machine.py dibondhoch<br />openscad -D $bom=2 -o dummy.csg scad/bom.scad<br />Generating bom ... done<br />openscad -o dibondhoch/sheets/frame_base.dxf dibondhoch/sheets/frame_base_dxf.sc<br />ad<br />Traceback (most recent call last):<br /> File "C:\Mendel90-master_neu\make_machine.py", line 17, in <br /> make_machine(sys.argv[1])<br /> File "C:\Mendel90-master_neu\make_machine.py", line 11, in make_machine<br /> sheets(machine)<br /> File "C:\Mendel90-master_neu\sheets.py", line 63, in sheets<br /> dxf_to_svg(dxf_name)<br /> File "C:\Mendel90-master_neu\dxf.py", line 81, in dxf_to_svg<br /> ptList, cirList = parse_dxf(fn)<br /> File "C:\Mendel90-master_neu\dxf.py", line 7, in parse_dxf<br /> f = open(fn)<br />IOError: [Errno 2] No such file or directory: 'dibondhoch/sheets/frame_base.dxf'<br /><br />C:\Mendel90-master_neu><br /><br />--------------------------------------------------<br /><br />any idea? I have openscad, python 2.7.5 and inkscape in the path.Ralf Steckhttps://www.blogger.com/profile/10134589216672659815noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-76543187582200210682013-10-24T18:25:09.175+01:002013-10-24T18:25:09.175+01:00I tried raising the bed temperature to 90°C, and n...I tried raising the bed temperature to 90°C, and now the prints are really good stuck on the bed, awesome!<br /><br />By the way, I just printed a case to cover the electronics on the printer, and put it on Thingiverse. Thought you'd like to see it:<br />http://www.thingiverse.com/thing:170995Anonymoushttps://www.blogger.com/profile/00628160478443138231noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-9429603440566081222013-10-18T15:03:09.416+01:002013-10-18T15:03:09.416+01:00Not really as objects stay stuck until the bed has...Not really as objects stay stuck until the bed has cooled for me. I don't use a fan for ABS but for PLA I turn it on after the first layer. I find that if I print objects at 185C the fan is essential or they collapse in on themselves. <br /><br />To increase adhesion you can have the temperature of the bed and filament higher for the first layer and then drop it. You could also change the fan parameters to leave it off for more layers, perhaps 2 or 3 and you can also make it only come on when the layers are small in time.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-38793886617908563072013-10-18T14:48:26.311+01:002013-10-18T14:48:26.311+01:00Hi, great to see some improvements in this already...Hi, great to see some improvements in this already awesome printer!<br /><br />About the extruder-fan, I always print with it turned off. The reason for that is than if i have it turned on while printing, the object cools down so much that it comes loose from the platform. Now when I tried with your new settings, it happened as well. I use the glass which were provided with the kit and have made a cardboard-insulator under it... <br />Any suggestions to prevent that from happening?Anonymoushttps://www.blogger.com/profile/00628160478443138231noreply@blogger.com