FB2020 CoreXY May 12, 2016 02:20PM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY May 13, 2016 07:54PM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 13, 2016 09:36PM |
Registered: 8 years ago Posts: 269 |
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Floyd
As an added note im also trying to support and work on converting the models to Solidworks files
Looks like a good model worth backing.
Re: FB2020 CoreXY May 13, 2016 11:43PM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 14, 2016 04:25AM |
Registered: 8 years ago Posts: 776 |
Re: FB2020 CoreXY May 17, 2016 10:32PM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 18, 2016 05:13AM |
Registered: 8 years ago Posts: 269 |
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Floyd
Here is a little peek at the Solidworks progress.
Im having to guess at how some of this goes together because the pictures and all that I can see have different parts on the assembly.
Getting there though.
Re: FB2020 CoreXY May 18, 2016 08:25AM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 18, 2016 08:55AM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY May 18, 2016 11:17AM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 18, 2016 11:34AM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY May 18, 2016 11:41AM |
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Re: FB2020 CoreXY May 18, 2016 12:42PM |
Registered: 8 years ago Posts: 776 |
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Ax
I'm looking at the idea of flipping the carriage to a vertical one
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with the rods coming in on the top and bottom of the Y Carriers, which will be in two pieces with the bearings in the middle.
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The hot end assembly will be secured with 3 bolts to the carriage to allow quick removal.
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For Belt tensioning, I'm thinking about a sliding clamp that will allow tensioning of both belts at the same time.
Re: FB2020 CoreXY May 19, 2016 04:13PM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 19, 2016 04:15PM |
Registered: 8 years ago Posts: 269 |
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Floyd
Updated SW with carriage now in there.
Re: FB2020 CoreXY May 19, 2016 04:40PM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY May 19, 2016 11:39PM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY May 23, 2016 05:16PM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY May 23, 2016 06:27PM |
Registered: 8 years ago Posts: 776 |
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Ax
Quick update. I've decided to start hiding electronics and improve the active cooling of the the stepper drivers. For that I've created an enclosure for the RAMPS which replaces the simple mount.
Re: FB2020 CoreXY May 23, 2016 07:44PM |
Registered: 8 years ago Posts: 269 |
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lkcl
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Ax
Quick update. I've decided to start hiding electronics and improve the active cooling of the the stepper drivers. For that I've created an enclosure for the RAMPS which replaces the simple mount.
ax... please consider saving yourself a lot of hassle and get a Duet NG when it comes out in a few weeks. i explain a number of times why RAMPS is completely shit - it's the idea of blatantly ignoring application notes and putting stepper ICs which have a ceramic insulator on the top (so heatsinks are ineffective) that are *specifically* designed to soak heat through the exposed pad onto a large PCB... onto 16x16mm tiny PCBs and then expecting there not to be problems, _that's_ why you're encountering difficulties.
the people who started the home-made reprap movement were good at ideas but not very good engineers. they also ignored things like "momentum" when first developing the firmware, and that area's slowly been fixed, but there are some areas like "modular stepper boards" which are still not getting through people's skulls that the stepper ICs were designed with very specific heat dissipation requirements that are in no way met by these "modular" boards.
you've done an amazing job with the FB2020 - the only weakpoint is continuing to use a board that, unfortunately because of their original popularity, continues to propagate over 5 years worth of design ignorance (root word of ignorance: to IGNORE).
sorry, i didn't realise you were using RAMPS otherwise i would have mentioned this a while ago.
Re: FB2020 CoreXY May 23, 2016 08:31PM |
Registered: 8 years ago Posts: 776 |
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Ax
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lkcl
sorry, i didn't realise you were using RAMPS otherwise i would have mentioned this a while ago.
I'm fully aware that the RAMPS isn't optimal and I'm fully aware of where the printer falls short. For now, the RAMPS running Marlin 1.1-RC6 works well. CoreXY is fully supported and has all the options in there that are needed, so it does. The plan has always been to move to a Smoothieware based board eventually, something along the lines of the Azteeg Mini, AZSMZ or MKS SBASE. That'll happen when the electronics get moved to 24v.
As it is, I wasn't really having issues with the open mount and fan, this is more aesthetics than anything else and has the bonus of being cooler. Having the extra fan isn't really a big issue and I'd still probably actively cool the 32 Bit board to curb any overheat issues. I've planned way ahead on this and there are more pressing things to be sorted, like proper belt tensioning and easier hot end removal before I look at the Electronics again.
Re: FB2020 CoreXY May 25, 2016 05:17AM |
Registered: 7 years ago Posts: 2 |
Re: FB2020 CoreXY May 25, 2016 05:23AM |
Registered: 8 years ago Posts: 269 |
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ttl64
Hi Ax, very good job so far.
however, you make it very hard to build this printer since you make big changes.
for example, only two weeks ago i sourced all parts to build the fb2020, this was from your BOM, with all rods at 8mm.
the parts didnt even arrive yet and your already basing your design on 12mm rods and bearings in some place.
the original 8mm parts cant be found, and are probably out-of-date with all other changes.
may i suggest some versioning ?
minor fixes can be added to git immediatly (those whom dont require new hardware)
but big changes that require new hardware should be a major version change, and should not happen so often.
Ttl
Re: FB2020 CoreXY May 25, 2016 10:54AM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY June 09, 2016 02:25PM |
Registered: 10 years ago Posts: 770 |
Re: FB2020 CoreXY June 09, 2016 02:27PM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY June 09, 2016 02:30PM |
Registered: 8 years ago Posts: 269 |
Re: FB2020 CoreXY June 09, 2016 02:35PM |
Registered: 10 years ago Posts: 770 |
Sure can, let me remote into the home PC and see if I can figure it out.Quote
Ax
Nice one, d'ya wanna issue a pull request with the files? I'll merge 'em in.
Re: FB2020 CoreXY June 09, 2016 03:09PM |
Registered: 8 years ago Posts: 269 |
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Floyd
Sure can, let me remote into the home PC and see if I can figure it out.Quote
Ax
Nice one, d'ya wanna issue a pull request with the files? I'll merge 'em in.
Do I just drop them into the Github folder on my PC then hit pull request?
EDIT: Cant log in to the house. Ill get to it tonight then.
Re: FB2020 CoreXY June 12, 2016 08:25PM |
Registered: 8 years ago Posts: 269 |