I'll second what gforce1 said. Your belt paths are not straight. You'll have varying tension through the travel.by boredom.is.me - CoreXY Machines
Pre-assembly nuts (slide in) would be ideal.by boredom.is.me - General
Can you confirm that the 2mm step is still fine? Misumi's edges are a little thinner than standard.by boredom.is.me - General
I hate to even ask this, but are there any members here who are familiar with this profile? I absolutely love the quality of material and cuts for the 5 Series (2020) extrusion I got last time, and have chosen to stick with them for my next build. The problem is that it will require an insane amount of t-nuts. Misumi's t-nuts are $37 for 100 pieces. The economy nuts (flat) are $18 after quantby boredom.is.me - General
Do you understand how a core xy works? If so, none of those models will help you as a guide. You're going to end up designing your own thing. IF you don't understand how a core xy works, just stop and do some research. The first isn't a core xy. The other two have some 'interesting' design choices.by boredom.is.me - CoreXY Machines
Quotenewbob How is the roller shaft supported on the bottom end? Simple bearing for radial support topped with a lock collar. For the triple screw, that should be more than fine. For the cantilever, it's a larger 10mm screw with a larger radial bearing topped with a thrust washer and lock collar. QuoteAlain60 Hello, I like the design of your 3D printer as shown in the attachments. Is there anyby boredom.is.me - General
I wouldn't call any of those features. With the exception of the stall detection, those are found on every single printer. I would call them fundamentals instead of features. What you should be looking at is a parts list. "What do I need to get running?" frame and bed assembly extruder hot end bed heater linear motion belts and pulleys steppers controller and drivers power supply limit switcby boredom.is.me - General
Haha, like I said, I'm a builder and designer. Although nothing official beyond 60 credits, I do have an engineering background as well as hands on experience in manufacturing, materials, and pretty much anything to do with getting products from a screen to the physical realm. I just like prodding the community. I've had three cnc machines, two of which I built, the last being completely myby boredom.is.me - General
In the time I spent thinking about this, someone else presented the same question. EDIT: That turned out to be a bumped 2 year old thread.by boredom.is.me - General
There is no better place to ask this than on the RepRap forums. For the most part, it all started here. As a builder, I don't mind spending a little extra if it means designing and building my own. Considering the progression (and copycats) over the years, is it still worth it to build a printer? Ya, there's a lot of cheap crap out there, but some of what's available is pretty decent and, morby boredom.is.me - General
There is one benefit. As the print height increases on a printer, so does the mass on the bed. A normal printer has to move that mass while a core xy does not. A normal printer will technically deteriorate as the print gets longer.by boredom.is.me - CoreXY Machines
Just don't. A mill/router and a printer operate at the exact opposite ends of the spectrum. If you try a dual purpose build, it will be garbage at both. Plus you say cheap while referring to a 60" square build. Is $700 worth of electronics cheap enough? That doesn't even include any of the mechanical stuff. Rails may be another $1000. Then you have the ball screws or r&p. That's maybeby boredom.is.me - Extruded Aluminum Frames
The part doesn't need to be cooled. The fresh filament is what needs the cooling. That's specifically why the part cooling fan is located on the extruder assembly. The idea is to only cool the freshly deposited filament, and only enough to convert from a liquid to a solid. A larger remote mounted fan isn't going to do anything except maybe mess with your bed temps.by boredom.is.me - CoreXY Machines
What exactly are you trying to accomplish? This is actually something I've thought about for the purpose of having a uniform chamber temperature. However, your title states it's for cooling. If it truly is for cooling, it won't do anything.by boredom.is.me - CoreXY Machines
The lead screws are constrained. Make sure they aren't bent.by boredom.is.me - CoreXY Machines
That looks like a mechanical issue along the x direction. Is there any play in the gantry? What diameter and length are you using for the y rods?by boredom.is.me - CoreXY Machines
I use BoltDepot. Edit: They offer individual and large quantities. I haven't come across any cheaper American supplier that can supply quality hardware. I use their stuff on remote control as well as full scale. They have pretty much every material type and grade too.by boredom.is.me - General
Well how much do you plan on selling these machines and what hardware will they use? What about print volume? You state that you want to sell for triple the cost of parts. A good machine (linear rails, good electronics, rigid frame, enclosure, a clean appearance, real hot end and extruder, etc) is $400-500 in parts if you don't have a manufacturer's connection. Do you have any pictures or somby boredom.is.me - General
Your temps might be a bit too high as you have some weird melting around the edges. try using a part cooling fan.by boredom.is.me - General
QuoteArchiclem It's a piece of art... For my information, what is this ? à flow gauges/meters, one for each loopby boredom.is.me - Delta Machines
QuoteMatthewHall I can confirm what DigitalDentist said above - Misumi US cuts extrusion to length which is both convenient and lowers the shipping cost. I order everything this way and it's above quality. Are their cuts good to go as is?by boredom.is.me - Extruded Aluminum Frames
I'm pretty sure that would be a step in the wrong direction. The MGN handles higher loads than the SBR. The MGN will also hold greater positional accuracy. The last benefit is that the MGN is the smallest. You can always switch to an EGR, HGR, RGR, or even the new CGR. Edit: Spellingby boredom.is.me - CoreXY Machines
Maybe some mgn7 rails.by boredom.is.me - CoreXY Machines
To be honest, a cartesian would be the simplest here. Your bed isn't huge so you don't have to worry about mass. If you're going to build either, at least go a little bigger to make the extra cost worth it.by boredom.is.me - CoreXY Machines
QuoteTurtle_Cat I've never seen this before but the fact that it's labeled for two voltages is a clue. Between two wires, say, A and B, you'll get a resistance appropriate for the rated wattage at 110v. Between B and C, you should see about twice that resistance, which would give the appropriate wattage at 220v. This is extremely important because if 220v were applied to the 110v side of the heatby boredom.is.me - General
Working with resistors is the most basic operation of the entire electrical (digital and analog) world. If you're asking how to generate heat, I would NOT recommend you doing this. All you need is one of the most basic formulas of circuits. I'm not trying to be a jerk, but just buy a heating pad.by boredom.is.me - General
The resin in the carbon tube will be perfectly fine. You would have to place the hot end directly on it with zero airflow for a period of time to do anything. Eventually it would soften the resin, but only in that one spot. The rest of the tube would simply hold the structure. In a printing environment even with a super heated environment, I would have zero issues with using carbon parts.by boredom.is.me - CoreXY Machines
QuoteQdeathstar “Here, hold my extruder” That comment won the internet. I even stopped lurking just to say that.by boredom.is.me - CoreXY Machines
It seems like the effort to constrain to a single bolt size will only make things much more complicated. Anything you buy has its own native hardware set. For example, 20 series uses m5 bolts. The bolt depth in the extrusion itself is 6mm, but we don't want to actually have bolt bottoming out. With that said, anything in the 3-4mm thickness range can be mounted with 8mm long bolts. This coveby boredom.is.me - General New Machines Topics
I don't believe that "on-center" is a term for anything. Based off of your description, do you mean an 90 degree bracket with a 25mm center to center hole spacing for the mount? If you found what you want, but with the wrong spacing, just modify the part. A drill or dremel is all you need. If you want to make something, angle aluminum is easy to work.by boredom.is.me - Stepper Motors, Servo Motors, DC Motors