Ah...bummer, but isn't the ideal for our needs a 12 or even 24v board, I presume thats where the other separate control drivers come in handy, or are they not 32bit either, but can handle bigger steppers. I remember reading a while back about a tiny 64bit box, that looked quite capable, cant remember name or if it made it past crowdfunding, but just found this Pine 64bit quad, $15...looks a littby MechaBits - General
Is Ramps not agnostic with regards to if it was being driven from 16 or 32bit arduino, what needs altering for it to work? What about those ultimaker type boards instead of ramps, are they any good, would they work with 32bit arduino? whats the difference between 1.4 & 1.57 ramps?by MechaBits - General
Hard to see how it connects, does it piggy back or not?by MechaBits - General
look even closer and its a ramps board, I dont see the 32bit arduino? how does it fit with due.by MechaBits - General
Wish I had one that could cope with milling, just seen a scorbot for $1000 (though shipping to UK adds a little onto it) but not sure what I could do with it, or if I could get it doing anything useful but it led to a load of other machines I've not seen before, there's so much gear out there it's mind bending.by MechaBits - Polar Machines, SCARA, Robot Arms
I'm thinking of doing Z same as you have, but on a pursa style arrangement...not sure yet how/where to mount motor, and have to decide how to feed belt, ideally not closed loop, I might go with dyneema line, depends, still working on it.by MechaBits - Mechanics
Wonder if anyone's used gorilla glass, is it to flexible? I have an old screen I pulled to bits, and there is a really nice thin piece, not sure if it is gorilla, cool test video and moreby MechaBits - Reprappers
I just bought my first linear guide, not sure where I'm going to use it yet, but its got me thinking... I'm wondering if it could be possible, to run a lead(or ball screw) through dead center and have bed pivot around it for aligning, building a mechanism, to adjust screw height both ends(including motor, or some other arrangement /flex drive), so it could slope bed, or just plain 12mm rod throgby MechaBits - Developers
Don't worry cat farmer, I'm never happy with the clarity of my posts I prefer pics to writing, but was busy designing something else to do illustration.by MechaBits - Developers
Perhaps final design would remove the center pole, if the legs where doing the job of moving table accurately, perhaps the pole is only there while test are being done?by MechaBits - Developers
I'm struggling to see how bed can tilt with pole going through table(the whole point of a delta arrangement in say a flight sim), is there a gimbal or joint in there? On second thoughts are you just trying to get table to rise & fall, you then can't print in center, so you could just make a polar printer or simple rise n fall table.by MechaBits - Developers
Yes of course, steel is slower than copper & alu, so i'd keep all that just want to shield the ptfe from the steel, and I think a couple of those things above could work in connjuction, i'd have the ptfe((4-2) inside fibreglass tube (6-4) and instead of thermal compound stick some of that hotdamn in there, then some of that braided alu stuff(6mm) thermal grease to aid getting residual heat toby MechaBits - Developers
I found a new use for the J head hotend plate...I used it to mount one of the self aligning bearings, thee hole and the slot in the plate allowed me to position the bearing just where I needed it, waiting on the horse shoe type to see how that aligns with my hole spacings, as I no longer need them to mount the hotend, I hope I can use in another way.by MechaBits - General
One of the benefits of being a late adopter in this game, I was hoping I would gain from would be the ideal nozzle, but maybe whichever is going to have some issues at some point, I wonder if there is another layer that could be added to help, a compound or something like this or this hot damn or some of this to make things look like a spaceman suit or or or this or a mix of all of theby MechaBits - Developers
One of those FLIR cams would come in handy for testing and analyzing, and would make a great printing video, I'm hoping to start with 1.75PLA so really dont want to run into these problems, my PTFE tupe is 4mm OD,(so would like the throat ID to be at least 5mm, or get another material to shroud it) I want to shove it as far as needed down throat, and ideally if it was only gripped in one or 2 poiby MechaBits - Developers
Flow, Draw, Convection, heat rising, gradients, yes get all that, a little easier to for me visualize than the flow of electricity, hopefully the 'cut' keeps the heat backed up at the gate, and any heat that jumps the gate gets clobbered by the heatsink... you would just think a few mm from throat wouldnt make much difference, and if it does, then maybe another wider bore on the inside, keeping tby MechaBits - Developers
QuoteJamesK Quotecat.farmer Even with stainless heat break and polishing, I couldn't get pla to work consistently. The problem was the transistion zone. It would swell and stick, no matter what I did. I am working on one right now that I am excited about, once I get my new grooving tool, I can get my fins cut and get it tested. Ah, you were right. The 1.75mm hotend still suffers from heat creepby MechaBits - Developers
I'm wondering if the Pi3 would be ideal for this nanoDLP or some other similar software onboard rather than having to use a cloud service.by MechaBits - General
Result! Direct Action with a little community help, bypassing the expensive & slow route.by MechaBits - General
Yeah nice throat, all the way down to the tip... and the brass bell end / copper cap, keeping tip hot, looks like the perfect tool ready for action, I'm sure this thing could squirt all day without breaking into a sweat. ( dont get to say that very often I'm wondering if female engineers might have an alternate solution to this problem. I've seen those long alu' bars on ebay, was tempted, bby MechaBits - Developers
I'm wishing I had a little lathe like that but fear I would be scratching my head a little too, as most of the stuff I want to do needs a mill, the great thing about trying to cobble together a little all metal hotend is, it's quite cheap to buy all the little parts, a cheap little side project.by MechaBits - Developers
Not sure which is the line follower, how much for your kit? it looks a little thinner than 20x20 some of the longer parts look like they would flex a little?. What I find interesting about trying to design a modular system is hole spacings that fit other common parts, you would think 5's or 10's would be a good place to start, but things like rod supports & end bearings all have different spaby MechaBits - General
or brass dome nuts and add the hole, I'm making a hotend too, I know I might need another sometime soon, so wanted to try out similar throat to yours, they do one that's plain 7mm after the heatbreak, but I want mine to go through the block to other side and add the female nozzle on the throat, a longer version of this nozzle, ptfe all the way to nozzle, and maybe one without. just to see if thby MechaBits - Developers
the 2 attachment points on the center line, I know the idea is for them to be able to move apart, they are tied with the bed, I wonder if they could be tied to each other, more even distribution of the drive power(just my thoughts, maybe not correct), but put another slide dovetail under the bed between adjuster, like you have on the side.by MechaBits - Developers
Quoterealthor Let's move past the philosophical dilemma of reverse engineering please. If I would have asked: "How do they do it?" i guess it would have been less provocative I was only having a bit of fun, as always, trying to lighten the load, dissect away!by MechaBits - General
Second Plot 3 Cam shoot, cant say I'm looking forward to 6hour prints thoughby MechaBits - General
ahh “To steal ideas from one person is plagiarism; to steal from many is research.” Then I'm in the clear too...after reverse engineering the Micron extruder, merely for assessing fit, and a little adaptation, I then find they possibly reverse engineered theirs from someone else's plastic version. Gotta try to hide the influences. None deviate too much from same basic principle, so I hope i'm haby MechaBits - General
I like the idea of dipping honeycombs in resin(a sweet solution), it has a certain appeal.by MechaBits - General
aah..forgot about the details, when your talking 30mm is that just for extruder or is it linked to axis motion.by MechaBits - General
I thought about trying to get filament in from this angle as it would make things a little neater, but I would alter the rest of the hotend, but it's on the backburner for a while.by MechaBits - General