Maybe adding weight to the buildplate will help alleviate the sticky z-movements? Either that or a nice silicone lubricant if you've already checked the parallel alignment of the rods.by jerryjs8 - Developers
Interesting solution, but I like it. Even though it's a bandaid fix, the results look pretty good. +1 for thinking out of the box! But what are your plans on fixing the mechanical error? If you share pictures of your build we might be able to help come up with some constructive suggestions.by jerryjs8 - Developers
So, as promised some close-up pictures. I'll let them speak for themselves.by jerryjs8 - Developers
Got the housing plates back and mounted, everything looks like it'll work out just as planned. Right now I'm in the process of getting the smaller parts finished and then I'll get the mechanics mounted. Something that took a great deal of Friday afternoon was cutting all the threads for the housing. The result is being able to use the 6mm plates for mounting literally everything and getting riby jerryjs8 - Developers
Last week I got the extruder built, for the most part at least. I ended up going with polycarbonate instead of carbon fiber because of the higher heat resistance, but it ended up adding a few grams to the total package. I was hoping for around 350 grams, but I'm going to coming out just under 400 grams when the heaters, thermistors wiring etc. are installed. Gonna have to think about some wayby jerryjs8 - Developers
So been busy this past week with other stuff, but slowing been receiving the final small pieces for the build. As for the housing, this afternoon I've been doing some revisions to the z-axis. Main thought, if I'm already using aluminium plate, why not use it where I can? Otherwise I had been thinking the other way around, using aluminium only where I absolutely need it. Not a huge advance in theby jerryjs8 - Developers
Gettin' down to fun! Big tools for children in denial of being adults Rough dxf of critical parts Tomorrow I'm back in the lab and get to assemble the joints with some real bolts and bearings! At this point that won't help in refining the design, as everything seems right on the money, but it will temporarily still my eagerness to start making real progress. Holding with my fingers wby jerryjs8 - Developers
Well the aluminium finally arrived. Got one big plate cut down into 6 smaller ones and picked up the cast printing plate. Gonna meet up at the university towards the end of next week and do a test run with the waterjet to see if the DXFs need to be modified for few critical parts. Had a spare minute to get the stand off bushings for the tensioners made. Cut from V2A stock, necessary lenby jerryjs8 - Developers
Do eeeeet, build thread!!!!by jerryjs8 - Mechanics
Gluestick, 60°C heatbed, 260°C nozzle and a first layer printing speed of 20mm/s has worked great for me. For thin walled items touching the plate you can't go without a raft, but with those settings and taulman 910 I haven't had anymore problems.by jerryjs8 - Printing
What kind of printer do you have? What material are you printing and at what temps, speeds?by jerryjs8 - Printing
@ o_Lampe Thanks for the picture! Interesting pattern though... Have you gotten your mill finished yet? Would interest me if that really is caused by the ABS mounts. @ the_digital_dentist Found your belt driven z-axis! Right there in your signature of course... ------------------------------------------------------------------- So I decided to go for the z stabilizing rods from the start. Iby jerryjs8 - Developers
Quotethe_digital_dentist I think you're overly constraining yourself by requiring closed loop belts (except for the small ones that the motor uses to drive the larger pulleys). Belts always need some means of tensioning and you're setting yourself up for trouble if you don't design it in from the start. The small belts need to be tensioned, too, and in your design the easiest way would be to usby jerryjs8 - Developers
You got me thinking about the straightness of the 1204's, so I got them out and measured. Sure enough, krumm wie eine Banana! Not really, the worst I have is a wobble of 0.12mm and the other two are 0.05mm and 0.10mm. At the ends they're all very well machined and centered, so the wobble would be (very big generalization) at it's worst at 150mm z-height and then get better towards the max heightby jerryjs8 - Developers
Thanks, finally getting it together is a lot of fun! I may be overconfident in the straightness of the ballscrews, but the ones I have on the shelf look pretty well manufactured to not have any considerable wobble, therefore I thought additional rod guides would be overkill. Will see how that all works out, but at the back wall I have enough room to put some guides if it does end up being a probby jerryjs8 - Developers
Hello RepRap, glad to be a part of the community! Read a lot from these forums over the years and hope to contribute back in the same spirit that drives this movement. But first, an introduction! My name is Joseph, and I am 3D printing infected... So much that I decided to try and make a go at my own design. Hopefully some of you will contribute to the discussion about my build, and hopefullyby jerryjs8 - Developers
A while ago I took the round 90g nema 14 stepper and have been building a lightweight version for my CTC. Total weight of the contraption as you see it in the video was just under 200g. I don't know how I'd be able to shave off a whole 50g without going to another heater block/cooler than the E3D V6. Already using 5mm aluminium stock for the drive gear shaft and the smallest bearings I could fby jerryjs8 - Mechanics