tag:blogger.com,1999:blog-4339813531032979196.post2749810938910145945..comments2024-02-28T07:32:59.864+00:00Comments on HydraRaptor: Going greennopheadhttp://www.blogger.com/profile/12801535866788103677noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-4339813531032979196.post-26761944835738774032008-10-04T08:46:00.000+01:002008-10-04T08:46:00.000+01:00I haven't tried the raft facility in Skeinforge ye...I haven't tried the raft facility in Skeinforge yet. Indeed all I use is slice and fill and I remove all the info from the gcode apart for the extrusion paths. At some point I will investigate the rest of the tool chain for combing, etc.<BR/><BR/>My raft strategy is detailed here <A HREF="http://hydraraptor.blogspot.com/2008/05/stepping-up-production.html" REL="nofollow">here</A><BR/><BR/>In order to get the first layer neat it has to be at the right height. I currently use the layer height minus 0.1mm. That leaves temperature as the only way to control the bonding.<BR/><BR/>After the raft is laid I cool it with a fan for 2 minutes to ensure it is all back to room temp. I then do the first layer at 215C at 8mm/s and subsequent layers 230C at 16mm/s. I add 10C for green ABS.<BR/><BR/>If it sticks too much, or too little, I adjust the first layer temperature in 5C steps.<BR/><BR/>Also my raft is discreet threads so, even if it sticks fast, I can peel it off one thread at a time with a penknife.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-11971715669405530022008-10-04T08:27:00.000+01:002008-10-04T08:27:00.000+01:00cool work nopehead! as usual :) Your blog was alwa...cool work nopehead! as usual :) Your blog was always very inspiring to me.<BR/><BR/>I noticed your parts have a nice surface on both sides. We still have problems getting the raft settings right. The raft sticks to the object too much AND the first layer is too thin. So one would have to increase the extrusion rate at the first layer (although then it would even be more difficult to seperate the raft) but we cant figure how to do it with skeinforge. There does not seem to be a parameter yet. Do you manually or automatically edit the gcode files after the come out of skeinforge or do you just have the right raft settings?Wizard23https://www.blogger.com/profile/05365073096497051507noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-68934756451586903532008-10-02T01:02:00.000+01:002008-10-02T01:02:00.000+01:00Very interesting info-- i think i'll give it a try...Very interesting info-- i think i'll give it a try, if it creates Solid STL.<BR/><BR/>Solidworks is really really awesome, and imports exports just about everything, but is also a billion dollars :(Davehttps://www.blogger.com/profile/11987514110079695313noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-85496378290642743042008-10-01T21:36:00.000+01:002008-10-01T21:36:00.000+01:00Hi Dave, CoCreate Personal Edition (the free one)...Hi Dave,<BR/> CoCreate Personal Edition (the free one) can only save in its own format and export STL and VRML. It can only load its own format plus STEP, IGIS and MI.<BR/><BR/>I have never had any problems with the STL it produces. It continually monitors for non manifold shapes and refuses operations that would make them.<BR/><BR/>I find it very easy and intuitive to use. It takes a long time to start up but I can't find much else to criticise.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-54766542768303671332008-10-01T21:13:00.000+01:002008-10-01T21:13:00.000+01:00Hey, Nophead:What formats can CoCreate save? does ...Hey, Nophead:<BR/><BR/>What formats can CoCreate save? does it create decent STL or do you find that you have to post-process the STL with meshlab to fix holes and such?<BR/><BR/>I am using an old ( 2003 ) version of solidworks that i had while a student. it creates awful STL. but it is great software in terms of creating models.<BR/><BR/>How do you like CoCreate? can it save STEP files? Enrique and I have been talking about ( among other things ) trying to get skeinforge to handle STEP AP203 files which would be more accurate and efficient than STL.Davehttps://www.blogger.com/profile/11987514110079695313noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-79720940288836042182008-09-30T09:28:00.000+01:002008-09-30T09:28:00.000+01:00Hi Robert, I get an email if you post on any arti...Hi Robert,<BR/> I get an email if you post on any article so it will get noticed.<BR/><BR/>Yes I use x10 microstepping on my XY table. I have no choice, because the controllers only have step and direction inputs. I don't need the 0.006mm resolution that gives but it does make the motion very smooth.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-71798403864945722272008-09-30T06:20:00.000+01:002008-09-30T06:20:00.000+01:00Not related to this post, but I figured it might g...Not related to this post, but I figured it might go un-noticed if I commented on the appropriate post.<BR/><BR/>Does your firmware/host software ever use the microstepping that your stage is capable of? Just curious...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-414037828171344532008-09-25T17:13:00.000+01:002008-09-25T17:13:00.000+01:00Brilliant work, as usual, nop! :-DBrilliant work, as usual, nop! :-DForrest Higgshttps://www.blogger.com/profile/17208965471464716174noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-25460833439766700462008-09-24T09:26:00.000+01:002008-09-24T09:26:00.000+01:00Hi Chris,Green looks great! I've read a paper abou...Hi Chris,<BR/><BR/>Green looks great! I've read a paper about the dye always affecting the material properties of the virgin plastic. It's not necessarily bad though, but something that give new options but adds some complexity. I looked for the article, but I guess I never saved it.<BR/><BR/>Thanks for taking the trouble of uploading the design.Erik de Bruijnhttps://www.blogger.com/profile/09433438819279256757noreply@blogger.com