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MechaBits KraftWerk'r

Posted by MechaBits 
Re: MechaBits KraftWerk'r
March 02, 2019 11:02AM










Finally get the printer dialed in for this white material, it's like nylon fishing wire, printing at 210, but I have a feeling it needs a little more heat, i'll be happier when it's all gone, thought it might be good for some arty pieces with moody lighting but the time it takes to print something big means I must really want the object/item...and so far that must have item eludes me...








The building really shouldnt have been started without all the parts needed but half the fun is putting it together to see what parts you need or are short of, and now some of those bits have been made and some arrived in the mail, I'm faced with leaving it as is to test or rebuilding with the new bits, mostly nuts...but I also had a spare wide rail. If I used one wide rail instead of the two above, it means I could probably make another printer with those parts, and have a much neater minimal machine, with a lower profile bed, 30mm lower. Decisions Decisions...
Re: MechaBits KraftWerk'r
March 02, 2019 12:35PM
What kind of filament is it ? Brand ?

"A comical prototype doesn't mean a dumb idea is possible" (Thunderf00t)
Re: MechaBits KraftWerk'r
March 02, 2019 01:37PM
havent got a clue, bought it cheap on a similar reel to excelvan but when it came with no airtight bag I knew it was dodgy and it's been waiting for a use for a few months in no airtight container, have had a similar type of duff roll before in grey, like fudge, but doesnt seem to have any stickyness,, but on the last print I didnt need big feet, used a little extra tape incase...but think it would have been fine without, was having a problem with the small 3mm holes on first layer, and blob buildup but that was sorted on recent print.
Re: MechaBits KraftWerk'r
March 28, 2019 02:54PM








XL-45 is a new beefy Cantilever 3D Printer made with 45mm Profile(2x400 & 3x200). With 12mm rods for Z & 42mm wide rail for bed, it has a small footprint but is quite heavy & solid, Simple to build & Easy to maintain & adjust.

Edited 2 time(s). Last edit at 03/28/2019 08:57PM by MechaBits.

Re: MechaBits KraftWerk'r
April 05, 2019 08:14PM

Bad 3DPrinter Blames Bad Filament...and while I still believe this stuff aint perfect and won't be buying it again(unless in error) at least now towards the end of the roll I'm getting some useful prints. The Ramps box had a severe warp despite trying to minimize it, but in the end everything still fitted and the lid/design helps hold it all together better, a little better than the last case, roll on new roll of stuff.
Re: MechaBits KraftWerk'r
April 10, 2019 10:59PM
Changed over to known quantity and know I can see a little better how its performing, on the diag' the pulse steps are creating an interesting tactile feeling to the surface of the print, I know Z could be a little better, I wish I wasnt using short bearings for Z. X&Y belt marks are reduced but not eliminated.
Re: MechaBits KraftWerk'r
April 11, 2019 10:04AM
The last print looks to be a tad over-extruded smiling smiley
Re: MechaBits KraftWerk'r
April 11, 2019 10:45AM
first layer was far too close and i was adjusting on the fly, but the rest was 1.02 on the extrusion, I find the .2 layers need a little extra but normally 1.01 but I wasnt watching when it got to the 10mm & 15mm layer height so a little over there.

Edited 1 time(s). Last edit at 04/12/2019 07:32AM by MechaBits.
Re: MechaBits KraftWerk'r
April 29, 2019 10:06AM

Makes a change to print some things not printer related, and after a long gap without printing anything I manage 2 new projects projects in a week...well old projects just resurrected, need to finish the roll before the summer arrives

Edited 1 time(s). Last edit at 04/30/2019 06:33AM by MechaBits.

Re: MechaBits KraftWerk'r
July 03, 2019 01:13AM




My First Printer has the 35mm OD Black Tube Frame surrounding it, though was never meant to be part of the design, a rather extravagant use of it as it doesnt really make the most of its rigidity, so I've been wondering for a while how to make better use of it without having to drill any holes in it.

What we have here is what could go into that black frame, but I decided to build it out side of the cube to see how it went together. Ideally I wanted the 12mm rods sunk into a 50mm or so worktop thats sitting at the bottom of the cube, and I would use the 12mm rod ends to tidy & strengthen that. But the way it is here in the pictures it is surprisingly sturdy. If it goes into the black tube cube then obviously i'll make something to hold the top of the Z Rods, I've done a few ideas but still putting that on hold till new ideas come or I decide what I want.

For an even more minimal look i'd rather have the rodends for the bed also bolted straight to the worksurface/base rather than to the profile, though the profile Z is on could be also bolted to the base, and the profile the beds on could bolt to that profile, I think I wold prefer to see it without all those extras. The parts are a bit warped but seem to do the job, maybe get a heatgun on them, I've revised the X & Y ends for alternate material(metal) and alternate Z Base units where designed to bolt to the base but print time for those was more than i could be bothered with so cut them down in size.

I could add some buttressing to the profile to stop them from turning if I need to(though I wish the motors where also embedded into the worksurface). I decided to just rotate the left over rod support on the Z to stop motor rotation. Final part needed is the hotend and I have no idea which hotend to put up there, maybe another hex hotend?, so no idea yet on the mount. Will it ever make it into the BlackCube?

Edited 3 time(s). Last edit at 07/04/2019 04:15PM by MechaBits.

Re: MechaBits KraftWerk'r
August 13, 2019 05:19AM
Well So much for Summer & getting out with the camera and my PLA parts in the hot sun...luckily best times to film are sunrise & sunset so not so warm, but so far not much filming or printing, machines lay dormant, and when they used to call out in the middle of the night & invade my dreams with requests for new parts & upgrades, they haven't been screaming for attention in ages, leaving my mind free for other thoughts, though I appear to be locked inside some deep Zen state with no thoughts about much at all, except these little spool rollers.

So you have to try & put the neglected toy to work every now & then, just to be sure it will behave when you really need it. Testing my new LED Video Light in Macro which lights up the part with a nice even light(hand held macro is tricky), if only I had this light 15 years ago, life woulda been so much simpler and the footage much better.

Edited 1 time(s). Last edit at 08/13/2019 12:03PM by MechaBits.

Re: MechaBits KraftWerk'r
September 05, 2019 01:39AM
Another exciting day 3D Printing...not! It only takes something small to throw a spanner in the worx.
A little blob throws the paths out, start again, and again & again. Decided to change out nozzle & throat as I'd started to get some seepage after messing around with hotend, things must have loosened.

Slicer seems to be playing up, first layer speed seemed to be going much faster than 20mm/s so had to slow it down extra? Many times in prep with my hotend 10mm above the bed at temp the slicer would crash, meaning i had to manually bring it down twice, the brim or skirt is set but doesnt seem to be there either so I only have the part area holding things down. Now that isnt a problem as things have been sticking nice lately, and I wanted to try without my additional base.

But on this part I need the extra stick, as the 45 deg slope on thin outer parts means more curling(decided to reduce that angle on the second print), I couldnt be bothered to add another part or two, to help avoid this curl. So I tried adding some frogs feet under just those parts and the slicer had the feet on first layer and the part on second layer??? couldnt solve it so went ahead without, I got some curling but hopefully I can still use the part(if only to check its dimensions are correct). 10mm out on the Radius sad smiley bugger thank god I didnt do the bigger version.

Which is what I ended up printing next, slicer back to normal, frogs feet & all, flat as a pancake, going to let this cool down before removing dont want to spoil it.









Edited 3 time(s). Last edit at 09/05/2019 11:46PM by MechaBits.

Re: MechaBits KraftWerk'r
November 12, 2019 07:20PM
Winter is here, what else to do when not hibernating...print some stuff...holding back till design is closer to completion, the cube has been in need of some attention, saving the best till last, or the hardest till last?
With a limited amount of spare parts i've started to commit to a layout I fancy having a go at.
I think i've decided on a simple arrangement and trying to figure a way to assemble & keep plastic parts out of the chamber area, though a couple of things could change, like position of Z.
Waiting on some pieces of 2040 as crossbars, one for X one for Z, I plan on drilling the 2040 to fit the carriages on X (maybe later find a way to decouple one end, if I ever heat this thing up hot smiley ), i'll be mounting x motor on the axis, I'm hoping to keep both ends in sync with the belts though I have to design some idler/tensioners, for Y & Z, lucky I had the 2 closed loop belts as it gets me part of the way but had to use the large pulleys which works ok, didnt have any other 8mm spare, hence the odd 32 or 36 tooth pulley , but I need 2x longer ones for the Y about 460mm.

The short piece of 3030 is all I have to hand to try to cobble together some platform, but because the bearing and the leadscrew nut clamp have different centers, then the 3030 sits at a little bit of an angle, so will have to see if it stays put together this way. it sits in the area where a panel maybe...ideally I wanted both Z risers outside the cube, but because of thee length of the loop belt and the rest of the available parts it made sense to do it this way for now. I have a piece of 2080 to straddle the 2x3030 but joining them up is tricky, I'll probably try it between the 2 Z bearings without the 3030,until the 2040 arrives, hoping it will be adequate.
the 2040 & the 2080 I have are 500mm long cube is 460, pity 50mm or so longer and I could have put the Z rods outside the cube, which then messes with covering those sides and takes you down the route of a cantelever bed from one end.

the rods belts & pulleys for Y could be rearranged so the rails where ontop instead of underslung I might get a little extra height but I thought this way I might be able to get a lid on the box, So far no PLA has been harmed in the build process.








Edited 4 time(s). Last edit at 11/13/2019 03:37AM by MechaBits.

Re: MechaBits KraftWerk'r
November 13, 2019 03:28AM
and a few quick changes, altering Z anchors/bearings the slack from the belt is removed without tensioner the belt maybe a little too tight now, might have to mess with the steps per mm as i think i'm stretching it...Now i'd like to mimic the arrangement to the other side, because the 3030 seems to line up perfect like this, but I might be out of 16mm rod ends, with a bit of luck i'll find 2 more..this will also slacken the belt 10mm...each side...i'd like to use smaller pulleys for sync so they could sit lower, I thought I could ride the pulleys on the radial bearings but they interfere with the frame, smaller pulleys would slacken belt too much. Thought I might also mount the Z motor back on the outside and drive with belt, but it was far easier to keep it on the inside & slide for tension, if I find a slightly longer loop I might put it outside later on. Starting to lean towards rails on the top, if I use the awkward bmg clone.


I really should clean off that dried blood, no fingers lost yet.

Digging out my large multicoloured piece of glass(once again), it dawns on me that more changes are needed, I need to move the Z cross bar to the center so the glass balances without extra struts, something it wouldnt do on 2040, though I could add 2 of, if I hang the black profile from the 3030 I gain a little height, wondering if any bed leveling will be needed or if I can level one axis with the screws and hope the other is true???

Edited 5 time(s). Last edit at 11/13/2019 08:26AM by MechaBits.

Re: MechaBits KraftWerk'r
November 13, 2019 07:19AM

Son of MegaMax 3D printer: [www.instructables.com]
Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]
Re: MechaBits KraftWerk'r
November 13, 2019 07:55AM

? did u post correct link?

Re: MechaBits KraftWerk'r
November 13, 2019 05:38PM
I saw a post that said you were looking for a name, and considering Godzilla. Mothra was superior to Godzilla in several ways, but especially because it had its own theme song, sung by the Peanuts. if you're going to name a printer after a Kaiju, shouldn't it have its own theme song?

Son of MegaMax 3D printer: [www.instructables.com]
Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]
Re: MechaBits KraftWerk'r
November 13, 2019 10:55PM
Mothra FK-R 2 smiling smiley .... i'd at least like a tune i knew what the words meant, Godzilla's on iit's back at the mo', no match for idle hands.

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