Best Kossel XL or larger kit? March 13, 2016 07:05PM |
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Re: Best Kossel XL or larger kit? March 14, 2016 12:57AM |
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Re: Best Kossel XL or larger kit? March 14, 2016 06:27PM |
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Re: Best Kossel XL or larger kit? March 14, 2016 08:54PM |
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Qdeathstar
Yes, i liked the aluminum corners, sadly they dont make an XL so i'd only be able to build 17cm... the XL goes to 26cm... quite a difference.
Re: Best Kossel XL or larger kit? March 15, 2016 01:05AM |
Registered: 9 years ago Posts: 338 |
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Sorry that Kossel XL full kits are Not available.
Order can be followed on our website, thanks!
Best Regards,
Derek Meng
SKYPE: robotdigg WhatsApp: +86 17001516168
www.robotdigg.com More than 3D Printing
Re: Best Kossel XL or larger kit? March 15, 2016 01:08AM |
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Re: Best Kossel XL or larger kit? March 15, 2016 03:39AM |
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Re: Best Kossel XL or larger kit? March 15, 2016 06:48AM |
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Re: Best Kossel XL or larger kit? March 15, 2016 09:15PM |
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Re: Best Kossel XL or larger kit? March 15, 2016 11:59PM |
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Qdeathstar
Also, since deciding originally on the prussa, I've learned that the kossells are just plain sexier.
Re: Best Kossel XL or larger kit? March 16, 2016 12:52AM |
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Re: Best Kossel XL or larger kit? March 18, 2016 08:18PM |
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Re: Best Kossel XL or larger kit? March 19, 2016 05:13AM |
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Re: Best Kossel XL or larger kit? March 19, 2016 07:18AM |
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dc42
I'll send them a reminder of your interest. I think the reason that they haven't released the large delta yet is that they are waiting for the sheet metal corners to become available. The Robotdigg aluminium corners are very nice but rather expensive.
Re: Best Kossel XL or larger kit? March 19, 2016 04:38PM |
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Re: Best Kossel XL or larger kit? March 19, 2016 05:08PM |
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Re: Best Kossel XL or larger kit? March 19, 2016 11:05PM |
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nebbian
Some people will say that modern 32 bit boards have amazing auto calibration routines, which is true. However if your plate is slightly non-flat (as they all are) then this non-flatness throws off the calibration routine and introduces larger errors elsewhere.
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nebbian
To be honest, most people won't notice those errors. But I have, and it frustrates the living daylights out of me. Note, if you do notice that parts print larger in an area of the bed, there's pretty much no way to figure out what's wrong, without meticulously going over every measurement again.
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nebbian
Building a cartesian printer such as a CoreXY would easily allow much better accuracy, without spending weeks going around and around in circles trying to figure out why parts are printed at different sizes in different areas of the bed.
Re: Best Kossel XL or larger kit? March 20, 2016 01:12AM |
Registered: 9 years ago Posts: 916 |
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bgkdavis
Deltas have zones where they have greater sensitivity to calibration errors if you draw a triangle between the towers this is your sweet spot, and you should easily be able to get good accuracy in this area, as you venture outside this triangle your accuracy is more sensitive to calibration errors until you get to the periphery between two towers where you will expect the greatest sensitivity... the point is, none of this is a mystery or inexplicable, and if your spending weeks going round in circles then you probably have a poor understand the kinematics, which itself is understandable if your not a math major.
One of the biggest problems people have with Delta calibration is when they get confused between good calibration and reducing the mean error to zero, yes a good calibration will have an error close to zero, but its possible to obtain a zero error without doing good calibration.... every-time I hear someone tell me they have great mean calibration error yet crappy parts I discover they have invented a cool way of cheating the calibration!
Re: Best Kossel XL or larger kit? March 20, 2016 01:58AM |
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Re: Best Kossel XL or larger kit? March 20, 2016 06:48AM |
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Re: Best Kossel XL or larger kit? March 20, 2016 09:32AM |
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Re: Best Kossel XL or larger kit? March 20, 2016 09:39AM |
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Re: Best Kossel XL or larger kit? March 20, 2016 10:19AM |
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Re: Best Kossel XL or larger kit? March 20, 2016 10:39AM |
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Qdeathstar
what kinds of tools do you think I should have to calibrate a delta? I've got a caliper, level, square, as well as, ofc, an assortment of hand tools.. but anything else you'd recommend?
Re: Best Kossel XL or larger kit? March 20, 2016 10:51AM |
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Motedis sell two types of 20mm extrusion, the I-type and the B-type. I used the I-type, however it wouldn’t fit into the vertical holes in the Robotdigg metal corners without enlarging the slots with a Dremel, and I needed to tap the end hole M5 myself. So B-type verticals would probably be better, as long as the slots are not too wide for the wheels. Motedis only sells 2060 extrusion in I-type, therefore either the horizontal extrusions must be I-type, or you could use 6 x 2020 B-type extrusions for the lower horizontals instead of 2 x 2020 and 2 x 2060. Also note that the B- and I-type extrusions take different sorts of T-nuts. The B-type takes M4 T-nuts that rotate into place. The I-type take M3 or M4 T-nuts that can be pushed into the slot and have a spring-loaded ball to hold them in place.
You could use V-slot extrusion if you prefer – just check that your wheels are compatible.
Re: Best Kossel XL or larger kit? March 20, 2016 04:38PM |
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Re: Best Kossel XL or larger kit? March 21, 2016 11:12AM |
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Re: Best Kossel XL or larger kit? April 05, 2016 05:53PM |
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Re: Best Kossel XL or larger kit? April 07, 2016 10:30AM |
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Re: Best Kossel XL or larger kit? April 07, 2016 03:53PM |
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