I'd suggest more points of contact, like two bearings along the shaft. It looks like there is enough room for two, and not reduce your print area. You could use your printer in this sloppy condition and print your new design having two bearings and will replace some of the wood bits. there is likely slop in the wood and in the bearing.by davew_tx - General
I use ball bearings for the free wheel side. They are easy to add a groove to, just by taking a dremel with a cutoff wheel and grind in a groove while holding between two fingers. You can add a bit of friction so the bearing doesn't match the dremel speed. Pay attention and it's very easy. I would foresee some blood if you are fiddly or hesitant in this. After a minute or so of sparks and spiby davew_tx - General
@Andrew OK, I thought I'd just trace out the above solution on the RAMBo schematic, and I follow the DIR/STEP/EN pins being reassigned to 33, 42 and 25. How are the pins for MS1/2 determined to change to 63/64? Daveby davew_tx - General
I can't find any discussions on this integrated slicer/host. I had a trial version (had to ask for it) but was unable to use it before it expired. It is expensive, like Mach3 price of $125 or something. Daveby davew_tx - General
i waited 11 weeks for an M2 from Makergear.by davew_tx - General
I've dremeled in flats without tape or Vaseline gooped at the bearing. The bearings on my steppers are shielded and not sealed, so I probably just got lucky with where the dust went. i've taken apart steppers, the issue being aligning the parts to keep the rotor from rubbing. Tricky, but not impossible. Haven't noticed a reduction in power.by davew_tx - General
SpaceMonkey, I see a couple of challenges that you will need to deal with, the first being customers. Be honest and ask yourself some hard questions: why would someone want what I am creating, what are my avenues of sales and exposure, how are people going to find my work, how many can I expect to sell and at what profit. Can I exist on these unknown profits. Are you experiencing delusionby davew_tx - General
i hate to be a hater, but that's a difficult website to find anything.by davew_tx - General
I like the fan and think the weight is negligible, at least for my overbuilt structures. Geared steppers are the big weight culprits for my designs. I'm not able to use bowden concepts as my filament tubes are 2-3 fee long. I'm also not keen on the Wades designs with a plastic gear on big plastic gear, with springs, bolts, bearings etc. Integrating the coldend fan and part cooling fan functionby davew_tx - General
well done. nice big yoda printing there.by davew_tx - General
They've cancelled their kickstarter fundraiser. they had a scathing comment to stay away, posted by Nick Parker.by davew_tx - General
I first heard of Japica from 3ders.org. Went to Kickstarter, saw the video, the fake Eiffel Tower, the wobbly gif of it rising and thought that they have some challenges ahead. I like the people and the effort and don't envy their task: develop/refine/execute/deliver in the public eye, with 100 masters to serve. They're tackling some pretty big stretch goals and I wish them all the luck. Theby davew_tx - General
originally posted in Developers, but may be better suited to this forum? There are so many patents dealing with all aspects of FDM/FFF, i.e. the liquifier, the chamber, the z-detection and leveling, etc etc. I like the patent (6,004,124) defining an idea to feed multiple filaments into a heated block, then out one nozzle. (RichRap shows this) This should be a link to a patent search for Straby davew_tx - General
seemed like the place. wouldn't developers discuss design and IP? I moved it over there.by davew_tx - Developers
moved to generalby davew_tx - Developers
has anyone noticed that firmwares generally support G2/G3 arcs, but I've never seen that in a Gcode file. Nothing but G1 moves usually. I have plenty of rads and arcs in parts, most are fixed rads, and not compound curves and splines. Daveby davew_tx - General
stratasys lets HP sell the Uprint in Europe under their own name. If you use one of those heat blocks, you might need to blow cold air on the inlet tube that protrudes. It will be very hot and the PLA will soften/fatten at the inlet. That Kisslicer thread shows the air blower they use. Daveby davew_tx - General
I haven't noticed specifically, but I've only done around 50 parts so far. Most all my holes have been clearance and not a press fit, like for a bearing or shaft. I can check this weekend maybe, after I repair a car. Is there a good test part STL.by davew_tx - General
Kisslicer for me. I like the z-offset, bed roughness settings, for creating a custom first layers. I like the speed of slicing, as large parts take a long time to slice. I like the Pro feature Crowning Threshold, which tries to eliminate short segments (your definition) I like the hollow and vase modes. I like the path view with transparent model overlayed. Prime/suck/wipe are working well for mby davew_tx - General
IGUS has great super-precision aluminum rods, for about $15 per 500mm or so. You have to ask for a quote. They have 10,12,16,20mm etc. AWM10 would be the 10mm I think. Great plastic bearings also. The J plastic is the long wear version. I think they are like $7 each in low quantity. look up dry-lin RJMP-01-10 for a 10mm version. VXB also has rod and bearings in different diameters.by davew_tx - General
Geez. I finally got around to reading Nopheads blog . Really worth reading, as he's see it all and done it all. Really a cornerstone. Props.by davew_tx - General
On this Ultimaker Print Farm video they show a Black Dynamite with an impressive reflection smoothness. Notice the print speeds on the running machines are reasonable and not blistering quick. I think the farm prints best quality at whatever speed is needed, so it looked to be around 100mm/s or so. Those Kossels are nice machines. I haven't read up on them much, but need to.by davew_tx - General
I still can't get over how impressive those green Rostock parts are. I doubt an actual Rostock could achieve that. Obviously, no offense to anyone who's submitted, but those green ones set the bar high. Daveby davew_tx - General
Chelsea, I've always wondered: how do you pronounce your company name? (I tend to say Q-Bid) Daveby davew_tx - General
3-4mm layer height? let's see a picture of that machine, for sure (if you can). Mitus has about $3k of spending to replicate it. it's mostly up on ThingEverse now. I've probably wasted about $1k in random dead-end alleys and design changes. Not bad versus a 10x6x6 Replicostly 2X from Rape-r-bot. I'm hoping to print some $1k parts soon, to recoup the costs quickly. (try to quote a large part aby davew_tx - General
some pics from when it was an Ultimaker style (not sure what the name of crossed bars is actually called). I should have used IGUS 20mm aluminum precision bars and bushings. cheaper and lighter than VXB stuff (no offense)by davew_tx - General