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http://reprap.org/wiki/CoreXY
Re: G&C Printer - 8 years ago
I've found layer height doesn't matter if you don't need detail. I have a .4 nozzle and printed all mine at .3 and haven't had an issueby critter42 - CoreXY Machines
Re: G&C Printer - 8 years ago
Quoteivo95 BTW do you think that 300x200mm bed size is doable with your design? (12mm rods + 4xSCV12UU holding the bed). I'm doing 300x300 on 12mm rods and 8mm leadscrew and it's rock solid (my plate is a 300mm plate salvaged from a Lulzbot Taz). I did have to increase the length of the x/y smooth rod and the extrusion pieces of the frame. And of course I screwed up those lengths initially becby critter42 - CoreXY Machines
Re: G&C Printer - 8 years ago
One of the reasons I selected G&C was because it let me reuse a lot of the parts I already had from when I attempted a Kossel variant. This made what I had to lay out to get the other parts (especially since I was going to 24v and 300mm^3 for the build volume) much less than someone starting from scratch.by critter42 - CoreXY Machines
Re: G&C Printer - 8 years ago
QuotefilipeCampos 4- in case you go with a cheap board like ramps 1.4, is better to put a external relay and not use the bed direlty connected to the board. the ramps can overheat if you do not use the relay. with a good board there is no need of this relay. you need to check the max Amp the board can have for the bed and if you can avoid the relay, it make a bang bang noise. Dumb question but dby critter42 - CoreXY Machines
Re: G&C Printer - 8 years ago
QuotefilipeCampos the new e3d appears to be a very good extruder, and using small motor can be very light, but they are new and way to expensive. i pretty sure in no time the price will drop and start to appear printed version. about the changes... i need the get the dimension off the base and where are the fixing holes to see the best way to install them directly on the carriage. the printer lby critter42 - CoreXY Machines
Re: G&C Printer - 8 years ago
filipe, have you seen E3D's new Titan extruder? I'm wondering what kind of changes I'd have to make to the carriage to accommodate it in a dual-extruder config. FYI, I'm getting close to finishing, but miscounted the bearings I purchased and am waiting for those to come in. Then it should be just a matter of running the belts, wiring everything up and seeing what happens!by critter42 - CoreXY Machines
Re: G&C Printer - 9 years ago
What's the Vref on your extruder stepper? Have you tried tightening/loosening the idler bearing holding your filament against the gear?by critter42 - CoreXY Machines
Re: G&C Printer - 9 years ago
Finally starting to order the parts (missed the CNY window, so the actual build won't start until the end of March now :p ), had a couple of more questions. 1) If I'm going to use the 30cmx30cm heated bed, what do I need to change the various frame lengths to? Or better asked, which rails/extrusions need to be adjusted and by how much? I'm having a little trouble with the calculations. 2) the Bby critter42 - CoreXY Machines
Re: G&C Printer - 9 years ago
QuotefilipeCampos 3) i do not think it will work for the 20x60 used for the bed. For the 20x40, it was used to secure the 4 printed plates, in your case you will have only one big plate, so you can simply replace with an 20x20 or not use at all. OK, I see what you're saying about the 2060 now that I've looked at it closer. Now it's just a matter if I can get my parts orders started and on theirby critter42 - CoreXY Machines
Re: G&C Printer - 9 years ago
I've got access to 12"x12" (300x300mm) heated bed assembly that I'd like to use, so that's really what I have in mind. Z-height isn't as critical. My current plans are to finish a couple of upgrades on the i3 I currently have (hopefully by the end of next week), then start printing the printed parts, getting a few of the fastening pieces I need and start assembling the frame. After that, it's juby critter42 - CoreXY Machines
Re: G&C Printer - 9 years ago
Hi! I've been doing some looking around and I plan to make this my next build. I'll probably get started sooner, but it may take a month or more before I really get ramped up on this. I did have two questions: 1) If I wanted to increase the build plate size, is there any issue with the cantilevered bed if I widen the Z axis rails? Also, what are your thoughts on adding a crossbeam between the twby critter42 - CoreXY Machines