Show all posts by user

Re: MechaBits KraftWerk'r - 3 years ago

Almost at the end of the roll....don't think I have enough left for the lid, considering I live by the sea & the roll has been out of wrapper for a year, I'd say it performed great to the last drop. Toying with the idea of a base for this case so it could hide some cables, otherwise I could have done more to manage the cables internally, maybe on the back of the lid, could have put a larger

Re: Looking for new contol boards and firmware - 3 years ago

looks like robo spam to me and to go back to Deckingman, and end that convo, interesting stuff, luckily i'll never run into those issues, good to hear it's all working fine, though if you keep going with the printer development it will either outgrow the duet 3 or the room. Do you plan on developing other ideas for other printers where you would need even more out of the equipment or something e

Re: Help with designing a belt tensioner - 3 years ago

where's your core XY MKSA? In this pic you can just about see the belt tension point and single screw, i have a closed loop belt on here, though it doesnt need to be, it makes it easy to pull the loop tight. what kind of leadscrew are you using?

Re: Help with designing a belt tensioner - 3 years ago

you could mount something on the back profile to press on the belt or pull it out .....scratch that idea Z moving...maybe squeeze in somewhere else on the axis

Re: Help with designing a belt tensioner - 3 years ago

Slightly different from what I imagined, +1 for the guides, 4 bolts to adjust tension could be a pain like 4 point bed leveling. you could have used one big one from the back(or hex head embedded into bearing part) into the bearing part, a thru hole with some lock nuts.

Re: Over-constrained smooth Z rods - 3 years ago

if the pieces for the motor had extra mount holes you could bolt it down to the table.

Re: Help with designing a belt tensioner - 3 years ago

I think its too free floating(cant tell), ie at least have it guided by surrounding part material, also you seem to be fixing one thing and then introducing the possibility of the bearing axis tilting under tension(bolts dont seem long enough either), I would have just added 2 holes on top of main part and attached an L piece or something for the top of bearing. It seem the side you need to be fl

Re: Help with designing a belt tensioner - 3 years ago

also the slots for the rails dont really need to be there, thicker material in that point, shifting things up a tad might help with moving & improving the idler. I'd redesign the whole of x & z, just 2 rails for Z an one for X with a piece of 2020 for support....then with the 2 free linear guides maybe alter the bed next.

Re: Help with designing a belt tensioner - 3 years ago

Idler post depends, if you are using the 5mm idlers with bearings or 2 flange on a 5 or 8mm post, I have tried a few options, shoulder bolts are great, other bolts that arent fully threaded can also be used but finding the right one with the right bearing a little trickier. I too thought it was a bit flimsy but didnt know how thick it is 10mm 15 or 20 but the slot in the Z nut trap makes it weake

Re: Help with designing a belt tensioner - 3 years ago

I see now, most of my designs tension at the X head, I just pass the belt through a thin 3mm slot(both belt ends) & anchor with a screw 3mm(but bigger ones would be better), prefer that to the belt in a groove like on green part(even if your using strong materials), could always use more screws & extra shim parts to compress belt if you wanted, but one seems to do it, hi-speed may need mo

Re: MechaBits KraftWerk'r - 3 years ago

Looks like I didnt have to worry about the ship sinking, this little guy must have helped out, it was only after hitting the buy button I realized the DIP was 1.1, not sure what the issues with the board are, or if i'll run into them, let's hope the issues are avoidable, marlin 2 here i come, even had a microsd in the bag. Suppose by the time I get some 2209's it might be more cost effective t

Re: Help with designing a belt tensioner - 3 years ago

cant understand why the belt is tensioned on the Z, would need to see more, doesnt look like enough material for the idler post, what about another part to secure top of idler?

Re: MechaBits KraftWerk'r - 3 years ago

wondering if my SKR will be taking a dip in the Suez canal, fine weather for it

Re: MechaBits KraftWerk'r - 3 years ago

now the hotend is £11 on ebay i've been robbed maybe 2 would be even sexier, one for each ear, beam me up Scotty. Maybe buy a few and flog em for £40

Re: MechaBits KraftWerk'r - 3 years ago

Decided to buy this sexy stainless hotend(£14) Some Italian trying it on on ebay wanting £46 for this, even though I could see alternate, newer, better options, even though it might bring no end of issues? Mounting a fan & duct not ideal, also the 24v heater I have doesnt fit due to the sleeving over the joins and alternate solution will be needed(got it in, forgot the paste? nothing suita

Re: Tripteron Implementation - 3 years ago

a cool example Single rail,

Re: Looking for new contol boards and firmware - 3 years ago

I was a little shocked that you have outgrown your duet & all the expansion possibilities, & what must have been quite a close exchange of ideas to work on, I doubt i'd have ever outgrown it's use...but couldnt decide to spend that amount knowing that if I went down the cnc mill/lathe route something else would be better suited. Break out boards so cheap, currently waiting for the tiny SK

Re: MechaBits KraftWerk'r - 3 years ago

Cheers Mike here's a couple with the lights on. Printer decided to play space invaders while waiting for the cowl to finish. Idler for X still on the boat, still undecided on new hotend parts, wondering if doing away with the 3rd Z bearing would be too detrimental, might look better with slight rearrangement, ie one metal bearing housing and the other by the motor 3d printed but with a longer

Re: MechaBits KraftWerk'r - 3 years ago

Re: MechaBits KraftWerk'r - 3 years ago

Not many parts arriving in the post these days, but when they do it's fun trying to figure out where to use it, spotted a new useful plate, though they didnt list the dimensions so wasnt exactly sure what i'd do with it, decided to switch out a rather large overkill plate for this new one. The small cantilever printer seemed a good fit, but now I need to alter the belt path from before, whic

Re: Can an icebag be 3-d printed - 3 years ago

what about creating some moulding slime-gel for quick custom shapes(or some other freezable chicken fillets) that you can pop in the freezer, does it need to be ice? Though might still need a membrane to keep it off skin.

Re: Can an icebag be 3-d printed - 3 years ago

grabs a bag of frozen pees & retires to a dark room to consider the problem

Re: Can an icebag be 3-d printed - 3 years ago

cnc bag welder, 2 sheets of plastic & a really hot tshirt press, custom die

Re: 3D Concrete Printer Prototype - 3 years ago

How long would it take to print a breeze block?

Re: MechaBits KraftWerk'r - 3 years ago

2021 Now I can release the secret of how to make a kilo of PLA last a year, whilst being locked in a room with only 3D Printers for company. I think I still have half a roll, the race is on to see if I can finish it by 2022. Though if I want to complete the latest gizmo I need to print a couple of 110mm diameter parts which should finish the roll off...so because I hate the long prints, i'll foc

Re: MechaBits KraftWerk'r - 3 years ago

remember those little cable clamps I made, now you can get them on line

Re: Belts pitch: 2 or 3 mm ? Your opinion ? - 3 years ago

I had to assume some things where = even though they aint the same

Re: Belts pitch: 2 or 3 mm ? Your opinion ? - 3 years ago

20t gt2 is 12mm, but I wouldnt know the diam of a 20t gt3, they are more expensive.

Re: Belts pitch: 2 or 3 mm ? Your opinion ? - 3 years ago

in the same way a 5mm lead on a screw would be faster than a 2mm lead

Re: Belts pitch: 2 or 3 mm ? Your opinion ? - 3 years ago

I suppose you get faster with the larger pitch, and a new controller to divide the steps more.