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Post by simplyloco on May 30, 2019 21:11:51 GMT
The box of tricks arrived today, and I couldn't wait to get at it! I am most impressed with Prusa Research. Quick delivery, a first class web site and support service, and this kit of parts is just about the best thought out and presented that I have ever encountered. Every work section was clearly detailed in the book, photo by photo, and each section's 'bits' were in clearly marked bags, in sequence number order. There is even a bag of spare nuts and bolts 'just in case'. I completed it today, about eight hours work, and tomorrow I will do some continuity checks before I fire it up. Watch this space: and look out Roger!   20190530_095205 by inkaboat, on Flickr The finish and fit of the framework was exemplary. I put it on my surface table and without any 'adjustments' it wobbled not!  20190530_120849 by inkaboat, on Flickr My first job on leaving the Army was as a works foreman for an electronics assembly company in North London. It all came flooding back when I was trying to sort this lot out! The eagle eyed amongst you will notice that I had put the extruder on back to front!   20190530_160347 by inkaboat, on Flickr The finished article. Well pleased.  John  20190530_210154 by inkaboat, on Flickr |
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Midland
Elder Statesman
Posts: 1,871
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Post by Midland on May 31, 2019 8:39:22 GMT
Must get to work on my list, can you do boilers?
D
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Post by simplyloco on May 31, 2019 17:47:08 GMT
Big disappointment today. It wouldn't get past the self test, and it took me some time to find the fault, which lay in a dodgy wire to the extruder fan. I got on to the chatline in Prague and requested a new fan, probably about thirty bob's worth. They asked for a video from me showing the self test. It was needed for our QA dept they said. I refused, and suggested that they pay for my time spent on fault finding instead.
The discussion ended there and they are sending me a new fan FOC...
John
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Post by jon38r80 on May 31, 2019 21:17:08 GMT
I wonder how this compares with the one Lisa bought which looks of similar construction. Can't remember the make but it too looked like a very comprehensive kit. It was quite a bit cheaper and didn't have the sort of bed that Roger has recommended. I was tempted but don't have the time for another toy at the moment.
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Post by simplyloco on Jun 7, 2019 8:37:07 GMT
More problems. I got the new fan, and it tested OK. However, on reassembling the extruder head I found these two wires hanging down: they had become detached from the thermistor lead. On examination, they had never been soldered or crimped together, they were just held together by the heat shrink sleeve! On to the chat line again today, they are sending me a new thermistor. Good service, but one has to wonder at the quality of the product...  John  20190606_102049[1] by inkaboat, on Flickr |
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Post by Doug on Jun 7, 2019 12:49:00 GMT
Afraid this is going to happen with these cheap Chinese printers, I have an Ender3 which was well made but needed the firmware updating to fix the lack of thermal runaway protection. I have since swapped 30% of the printer on upgrades to make it better. It’s pretty much a hobby in itself.
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Post by simplyloco on Jun 7, 2019 13:19:46 GMT
Afraid this is going to happen with these cheap Chinese printers, I have an Ender3 which was well made but needed the firmware updating to fix the lack of thermal runaway protection. I have since swapped 30% of the printer on upgrades to make it better. It’s pretty much a hobby in itself. I know what you mean Doug, but at £699 it's not a cheap Chinese printer! John |
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Post by coniston on Jun 7, 2019 20:49:27 GMT
That's disappointing John, I would have thought a genuine Prusa would have been better quality checked before dispatch. I guess you got a bit unlucky with that one but at least they appear to have some level of customer service which you wouldn't get buying a cheap Chinese one. Good luck with it and hope to come and see it working soon.
Chris D
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Post by simplyloco on Jun 7, 2019 21:07:21 GMT
That's disappointing John, I would have thought a genuine Prusa would have been better quality checked before dispatch. I guess you got a bit unlucky with that one but at least they appear to have some level of customer service which you wouldn't get buying a cheap Chinese one. Good luck with it and hope to come and see it working soon. Chris D I have a chit that lists the test results of each component. It does not seem to prove much! John |
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Post by simplyloco on Jun 8, 2019 13:38:43 GMT
I wasn't prepared to wait for the new thermistor, so I made some crimps out of some tiny copper tube, fitted decent heatshrinks on single wires and then both together, and it all works now! Temperature stability is spot on, and there are no nasty noises.  20190608_141958[1] by inkaboat, on Flickr This gun turret took 51 minutes, on 0.3mm layer height, and it isn't at all bad. I'll do another with the supporting ribs under the parapet. I can work on the Brit whilst this is chuntering away in the background!  20190608_142337[1] by inkaboat, on Flickr |
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uuu
Elder Statesman
your message here...
Posts: 2,816
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Post by uuu on Jun 8, 2019 13:43:41 GMT
That's so good it looks like you've superimposed an image from the 3D design software over a photo of the printer.
Wilf
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Midland
Elder Statesman
Posts: 1,871
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Post by Midland on Jun 8, 2019 15:17:03 GMT
Genuis!!!
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,912
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Post by JonL on Jun 8, 2019 20:29:36 GMT
Thats fantastic. I wish I could adapt to new technologies as quick as you have!
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Post by simplyloco on Jun 8, 2019 21:18:31 GMT
That's fantastic. I wish I could adapt to new technologies as quick as you have! It's all to do with my age: I have to fit it all in before I ....... |
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Post by simplyloco on Jun 9, 2019 13:51:20 GMT
Here is my 3D Design Studio: my bedroom actually because I snore a lot, apparently...  The printer had a few more issues, like the extruder drive gears not meshing properly, now fixed, and getting the right amount of filament 'squish' was tricky, but it all seems to work now. I can go to sleep listening to the gentle swish of the next job! John  20190609_144532[1] by inkaboat, on Flickr |
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Post by jon38r80 on Jun 9, 2019 21:04:21 GMT
snore?
Do you have obstructive sleep apnoea? I used to be head four doors away by my neighbour. Not any more!
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Post by simplyloco on Jun 9, 2019 21:19:53 GMT
snore? Do you have obstructive sleep apnoea? I used to be head four doors away by my neighbour. Not any more! How come the improvement? I had a rhinoplasty several years ago: it made no difference! John |
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Post by simplyloco on Jun 9, 2019 21:51:08 GMT
I've printed a front end using the support material programme, as the printer can't print windows into thin air, and the programme doubles the print time. The NATO Green PLA is just great! The layer height is 0.3mm, which is fine for prototyping, but the final print will be at 0.15mm. This is all about designing for printing, as removing the support material is a PITA! The finished item weighs 18.5g: the support material weighs 16g, so I will have to get a bit cleverer on this learning curve.. John  20190609_212706[1] by inkaboat, on Flickr  20190609_215616[1] by inkaboat, on Flickr |
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Post by jon38r80 on Jun 11, 2019 7:53:17 GMT
I got sent to a sleep unit in Oxford. Stayed overnight wired up to all sorts of machines and watched by video recorders, diagnosed with OSA and went back again about a week later to be fixed up/provided with a continuous airway pressure machine. Bit like Darth Vader. Got the best nights sleep ever and have had the machine since (all on the NHS). I have been surprised just how many people I have met had no idea that they had the same problem and how many people l know or worked with have the same machine that I have. Try getting your doctor to refer you to a sleep clinic. I did 20 years ago when the treatment was new and experimental, now its approved by NICE.
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Post by jon38r80 on Jun 11, 2019 7:55:16 GMT
By the way Between you and Roger I may well get pursued to get one of these printers, Perhaps not the one you have but one of the ones made by the same company as the one Lisa on here bought. Somewhere between the price of the 2.
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