ralf
Junior Member
Posts: 93 
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Post by ralf on Sept 22, 2017 20:06:26 GMT
Thank you, theoretically 3 bearings are better for the movement than 4....less bearings, less friction and less influence of misalignment. I would use 4 bearings because there is a better support for the buildplate and if you use bearings with a good quality it will move smooth enough.
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Post by tanephar on Sept 23, 2017 4:22:45 GMT
I have been offered some grease, a titanium based frictionless stuff, once I know exactly what it is I'll post, but with good quality bearings and this lube 4 bearings it is for me. Apparently it was developed by NASA for zero G and over time bonds to the metal at a molecular level, sounds fine to me.
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ralf
Junior Member
Posts: 93
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Post by ralf on Sept 23, 2017 15:36:57 GMT
Sounds interesting, but I think a regular grease would do the job as well.....
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Post by tanephar on Oct 9, 2017 2:13:03 GMT
Hello Ralf, I sent the dxf file off to be laser cut and they have come back to me with a dimension from the file that is way off. It would appear that the scale is out somehow. And that grease is actually an additive Tungsten Disulphide or WS2, interesting stuff. Attachments:
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ralf
Junior Member
Posts: 93
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Post by ralf on Oct 11, 2017 18:34:37 GMT
Hello tanephar, that’s strange. I’m sure my file on thingiverse has the right dimensions. Could be a metric/inch conversion problem(?). Nevertheless i will check the file tomorrow.
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Post by tanephar on Oct 12, 2017 9:23:31 GMT
Here in New Zealand we're metric too, conversion free zone, lol, the stl is right, I took the dimension from that file and from there scaled up it was an odd resize though
1 = 3.9980769. More fyi than anything, picking up the carriage tomorrow so fitting over the weekend, and then calibration time again. Thanks for the great design though the laser cutter was most impressed with the look of the finished article.
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ralf
Junior Member
Posts: 93
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Post by ralf on Oct 12, 2017 17:47:15 GMT
I thought that 1:4 is exactly the mm to kiwi inch conversion. I’ve checked my file and there was indeed something wrong, (export settings 😬). I have updated the file on thingiverse. Thank you for the hint and please don’t forget that the belt mount is off the middle, shorter distance to the left.
Wich thickness did you choose?
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Post by tanephar on Oct 12, 2017 20:36:01 GMT
Thanks Ralf, no inches in the land of the Kiwi, been metric for years, I have gone with 3mm plate, and 4 bearings, so the stepper and idler just need to be moved a little to realign the belt, thanks for the heads up. Getting the plate today in my travels and then will fit soon, post a pic when I do. Working together we can create a strong community, helping each other even though we are worlds apart, (well half a world).
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Post by tanephar on Nov 5, 2017 2:23:12 GMT
At last I have got the ali carriage and fitted it, the difference is phenomenal, the movement is smooth and there is no diagonal movement, as with the stock bed carriage. I went with the 4 bearing configuration, with good lubrication, there seems to be no problem. The carriage is flat and stays flat, so the heated bed is flat too, I always found with the acrylic part that it had warped slightly after burying the nozzle a few times, and so corner to corner heights were out, now the bed is level and stays that way. Ralf you are a god, this is an upgrade I recommend, and it looks good to boot.  |
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Post by kioskfan on Nov 5, 2017 5:02:53 GMT
At last I have got the ali carriage and fitted it, the difference is phenomenal, the movement is smooth and there is no diagonal movement, as with the stock bed carriage. I went with the 4 bearing configuration, with good lubrication, there seems to be no problem. The carriage is flat and stays flat, so the heated bed is flat too, I always found with the acrylic part that it had warped slightly after burying the nozzle a few times, and so corner to corner heights were out, now the bed is level and stays that way. Ralf you are a god, this is an upgrade I recommend, and it looks good to boot. It does look good, well done. |
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Post by theking3737 on Nov 19, 2019 22:00:59 GMT
The original buildplate on my DP5 bent so badly, that it was basically unusable. But luckily I knew someone who was able to cut these out of some scrap aluminum using a plasma cutter. Very nice design!  |
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Post by kioskfan on Nov 20, 2019 4:09:03 GMT
The original buildplate on my DP5 bent so badly, that it was basically unusable. But luckily I knew someone who was able to cut these out of some scrap aluminum using a plasma cutter. Very nice design! Those are beautiful! Well done. |
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