tag:blogger.com,1999:blog-4339813531032979196.post8520753405997174620..comments2024-02-28T07:32:59.864+00:00Comments on HydraRaptor: Over cooked itnopheadhttp://www.blogger.com/profile/12801535866788103677noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-4339813531032979196.post-24936770062930908002020-08-01T19:37:06.893+01:002020-08-01T19:37:06.893+01:00Didn't you email me several times in 2018 and ...Didn't you email me several times in 2018 and 2019?nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-16713425280746089632020-08-01T19:30:56.739+01:002020-08-01T19:30:56.739+01:00What is your email?What is your email?Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-27711586878867089382020-07-31T22:34:13.519+01:002020-07-31T22:34:13.519+01:00Yes a picture is worth a thousand words and we mus...Yes a picture is worth a thousand words and we must be approaching that and it isn't even on topic.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-84520306455904074862020-07-31T20:54:24.452+01:002020-07-31T20:54:24.452+01:00I am unsure, as the other 2 motors, which did not ...I am unsure, as the other 2 motors, which did not have a chamfer made it quite easy to guide the screw into the hole. in comparison to the chamfered one. The screw is long enough. The first motor was larger than the Stepperonline motor. It still went in fine on both, but I think that is because the length the screw can go down into in all 3 motors is the same. I manually screwed the screw into the Stepperonline motor, and it was harder to get it in on the first try then on the other 2 motors. he Stepperonline motor actually has circular scratches from the screw not going into the hole. When I screw the motor to the mount with the extruder, the extruder does not stay lined up with the other holes. It has to be slightly moved to make it fit, and if I keep the extruder straight, the motor has to turn, but either way, not enough is holding the motor and extruder down to extrude filament. I could email you with a picture/video if it helps.<br />Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-48457680954103463732020-07-31T16:10:31.787+01:002020-07-31T16:10:31.787+01:00Sorry I understood what you had said before. I don...Sorry I understood what you had said before. I don't understand how a chamfer makes it harder to put a screw in, it should make it easier as it guides the screw into the centre.<br /><br />Is the problem that screw isn't long enough, so it doesn't reach the thread when there is a chamfer? If so you need the next size longer screw.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-6222977133267991332020-07-31T15:53:54.814+01:002020-07-31T15:53:54.814+01:00So, it needs to be bigger than the top of the cham...So, it needs to be bigger than the top of the chamfer? How come? I thought that might damage the threads, but okay. Do I need to make the extruder's holes bigger? I personally feel it would be fine if I don't do that, but what say you? What size bits and what type would work for both the mount and motor?Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-71848607571127535552020-07-29T09:12:10.345+01:002020-07-29T09:12:10.345+01:00Normally a countersink bit is use to chamfer holes...Normally a countersink bit is use to chamfer holes but you can get away with a drill that is just bigger than the top diameter of the chamfer. Also you might just need to make the hole in the mount a bit bigger to have a bit more clearance.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-65130240063698659932020-07-28T23:59:59.808+01:002020-07-28T23:59:59.808+01:00I have. I figured out the issue. See, the first mo...I have. I figured out the issue. See, the first motor, and the pancake motor, they immediately start with the screw hole. the higher quality stepperonline one has a chamfer, so it is harder to screw it in. The surface slopes inward and then the screw can go into the hole, so like a miniature funnel, like this:<br /><br />Stock and pancake motor:<br />| |<br />| |<br />Stepperonline motor:<br />\ /<br />| |<br />Basically, the stepperonline motor has that slope, and it should be a smaller gap of course, but this was the smallest I could make with symbols on a computer. It makes it very hard to get the screws in. The other motors make it much easier. <br /><br />I think it is safe to say that if I get rid of the chamfer-thing, then I can get the screws in. Only, how do I get rid of the chamfer? I am unsure what size drill bit would work. Could you shed some light on that? Thanks for your help so far.Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-50733422422888292762020-07-28T20:09:05.513+01:002020-07-28T20:09:05.513+01:00I don't understand, you said "wider holes...I don't understand, you said "wider holes but the same thread". I thought you meant further apart, but if you mean bigger diameter how can it be the same thread?<br /><br />The normal cause for an extruder stepper skipping steps is a problem with the hot end that makes it harder to feed the filament. Have you tried feeding the filament by hand to see if the force required is reasonable?nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-58425992969720725392020-07-28T18:58:14.619+01:002020-07-28T18:58:14.619+01:00The holes are in the same place, but the pancake a...The holes are in the same place, but the pancake and first motor on there had larger holes than the higher quality Stepperonline one. Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-22141517489658704452020-07-28T09:39:48.146+01:002020-07-28T09:39:48.146+01:00If it doesn't have the holes in the same place...If it doesn't have the holes in the same place as a NEMA17 it isn't NEMA17. NEMA17 is a standard the defines the dimensions of the motor's face plate, so that they are interchangeable.<br /><br />You could measure the resistance of the coils but I don't know if that would be accurate enough to detect a single sorted turn. You could smell it as burnt wire usually smells burnt. nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-16168376391321623022020-07-28T02:49:21.954+01:002020-07-28T02:49:21.954+01:00Sounds odd, as the first motor on that mount was a...Sounds odd, as the first motor on that mount was a NEMA17, and then I had to switch to a smaller pancake, due to the motor not working. Then that pancake one stopped working, so I switched to another NEMA17. That one won't fit, weirdly enough. How do I check the coils/shorted turn?Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-16084495915432153282020-07-26T21:20:54.866+01:002020-07-26T21:20:54.866+01:00The screw holes are in standard positions for moto...The screw holes are in standard positions for motors according to the NEMA number. It sounds like one motor is is NEMA16 and the other NEMA17.<br /><br />I have never known a motor to fail, so I don't know how to fix one. Did it overheat and burn one of the coils? Perhaps it has a shorted turn.<br /><br />I have more time to blog because with Corona virus restrictions there is not much else to do. I would normally be out and about in the summer.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-91773974148888872852020-07-26T19:41:48.787+01:002020-07-26T19:41:48.787+01:00Hi nophead, this is not really related, but I just...Hi nophead, this is not really related, but I just fixed up my 3D printer, and the extruder motor is not working. It vibrates a lot when I tell it to retract or extrude, but the shaft doesn't move. I decided to use a Stepperonline motor spare I had, but there was an issue.<br />I did a test fit without the mounting plate as follows from top to bottom(I have bowden):<br />Extruder<br />Stepperonline motor<br /><br />It was fine then. When I decided to screw it on for real, like this:<br />Extruder<br />Mount<br />Stepperonline motor<br /><br />It failed. The screw holes on the extruder and motor did not line up. One screw would get in, but the edges of the extruder did not line up with the mount's holes. The motor was rotated to become diagonal. All the holes had this issue. Upon closer inspection, the not-working extruder motor had wider screw holes, but the same threads. It was a pancake motor, and it was working fine 10 months ago when my printer was working. How do I fix it? <br /><br />On an unrelated note, but related to your post, I dry my PLA for 10-12 hrs at 130-135 F, so 54-57 C. The basement which I print in is around 5-8 degrees cooler than the rest of the house, and it has a 20 percent to 25 percent humidity level.<br /><br />PS: How come you took a year to make new posts? Will you be more active this year?Vaibhavhttps://www.blogger.com/profile/07285082734027718037noreply@blogger.com