chris33 Wrote: ------------------------------------------------------- > shilushrestha Wrote: > -------------------------------------------------- > ----- > > it's all right.take a time and do slowly.and > you > > will perfect one day. > > > shilushrestha can you introduce your self please > you have been through the forum and put coments > which aint helpby pokey9000 - General
It should go in that hole. I put a dab of muffler cement in the hole (same as you might use for the resistor), then carefully bend the leads so the bend is just above flush with the brass when inserted, then tape around the entire brass (resistor leads and all) 4-5 loops of Kapton for securing the heater and insulation. Some people do this with thermal grease, but I find that the grease creepsby pokey9000 - General Mendel Topics
In the y-belt-holder.scad, you'll see: for ( i = [0 : 23] ){ translate([0-i*3+position_tweak,-0.5+8,3]) cube([1.7,3,15]); } This makes 24 tooth holes stepped i*3+position tweak along the Y, each 1.7x3. Sound committed a partially parametric belt setting to his branch that pulls belt settings from a central config file. The diffs are here.. He doesn't alter the 1.7mm though to fit the reby pokey9000 - General
-Parts for new printers and upgrades / spares -Enclosures for electronics -stuff to fidget with (I have many Emmet's gear bearings, planetary reductions, and cubegears) -interesting models for my cube -test & calibration printsby pokey9000 - General
sam0737 is right. You should be using transistors as an H-bridge as your relays will die fairly quickly in this application. Consider the TB6560 he mentioned, as it's really cheap (probably cheaper than 2 DPDT relays). Controllers like that will give you microstepping, thermal protection, and a easy logic drive, which you won't get with relays or transistors.by pokey9000 - Controllers
I printed a set of these isolators for my Prusa2, and it's much quieter. The noisiest parts now are the cheap LM8UUs and rattling from the binder clips holding my glass on.by pokey9000 - General
A cheap Z axis could be built based on the cable drive Z from Tantillus, perhaps substituting a DC motor with optical encoder and gearing. Z doesn't have to be fast, and the gearing combined with servo control could keep the platform still. Alternatively this might finally be an application for those cheap printer pulls people keep trying to find a use for.by pokey9000 - General
I don't know if silicone is the right material, but I imagine one way to do this is in two parts: mold the inner surface and teeth first, wrap the cord around the belt, then mold over the cord. One thing to consider is that it's hard enough printing pulley teeth for belts, so you might have a hard time printing fine pitch teeth with precise profiles.by pokey9000 - Developers
That clear PLA makes me want to reprint mine. As mentioned, support helps on the top portions. Use generous lift as the bearing edges can still catch even with the support, and the upper arches of the motor cutouts can be troublesome too. Warping can be a problem on the long thin spans, so use brim if you can or extreme measures like heated blue tape if you can't.by pokey9000 - Tantillus
As far as the LCD, Microchip has the MCP23008 I2C port expander that lashes up nicely to a character LCD. They'll even send you a few samples if you ask nicely. I believe it's supported by Marlin, though if it's not there are some drop-in replacements for LiquidCrystal. Then you'll have more than enough IOs to dedicate to the encoder, button, and SD.by pokey9000 - Tantillus
mrc Wrote: ------------------------------------------------------- > i was also wondering if its possible to Activate > the hotend cooler > if the heater gets turned on til it is cooled down > to 50° or something like that? The Tantillus branch of Marlin does something like this. It should be fairly easy to implement in any firmware.by pokey9000 - General
Turn down your retract speed. It could be causing you to skip steps during retract. If lowering retract speed doesn't help, try tuning the E stepper driver current.by pokey9000 - Printing
marcosscriven Wrote: ------------------------------------------------------- > > Yes I thought the same - rather odd of a 'peace' > prize! Unless of course Will Smith/Tom > Cruise/Bruce Willis are going to save the rest of > the world again, this time with a 3D printer... There was that movie where Bruce Willis saved the universe with the aid of *someone* that was 3D printed...by pokey9000 - General
I'm using Sanguinololu with 644p, but it fits only because I'm not using LCD. You'll need to be creative as well with the LCD too because Sanguinololu doesn't have enough I/O for SD, encoder, and a parallel interfaced LCD. As a side note, I recommend cutting the trace joining the USB 5v from the FT232 to the rest of the board (leaving the FT232 only powered by the USB bus). Nothing good comes oby pokey9000 - Tantillus
Unfortunately I don't think there's any sort of meetup. There's the ATX Hackerspace, but in my experience talking with its members there didn't seem to be much Reprap interest.by pokey9000 - Texas, Austin RepRap User Group
For those who don't want to dig into the link, this is a very clever SCARA XY design.by pokey9000 - General
#1 was a problem for me at one point, as was the small gear becoming loose on the motor shaft.by pokey9000 - Tantillus
I'm a noob to 3d modeling, but my understanding of the typical workflow is to start with a 3d model of the object(s) you want to encase, then either subtract that from the volume of the case or grow it by a factor to make a uniformly sized shell. What I have a problem with is a process for making such models from existing objects without resorting to expensive scanners.by pokey9000 - General
This post has a 50mm fan mount that I've been using for some time on my printed case. Out of curiousity, Sublime, why are your fan mounts offset? As for cables, it took a few days and 5 total restringings but I eventually got it right. The name of the game is to get all the cables drum tight while square such that sliding the carriage back and forth along one axis doesn't cause the rods on theby pokey9000 - Tantillus
NoobMan Wrote: ------------------------------------------------------- > But freescale imx6 is a processor in a bga with > 624 pinout. From these 624 pins, it has gpio more > than i care to count, and it has more ground pins > that arduino has gpio. On top of a processor like > that, slapping a serial connection to an arduino > board to get some i/o, has to feel at least a bitby pokey9000 - General
PC is often used for cheap optical fibers (ex. TOSLink). PC is now widely available for 3D printing. Discuss. Though I would like to see if SLA might work for lenses as I imagine it makes objects with few inclusions.by pokey9000 - General
Polygonhell Wrote: ------------------------------------------------------- > But you could do all of that with a single ARM > uController running a simple Web server and > providing motion control You can. So why hasn't anyone?by pokey9000 - General
ShadowRam Wrote: ------------------------------------------------------- > You could remote desktop into it via the Ethernet > port, and control your printer from anywhere in > the world. (assuming you've plugged this UDOO into > your router) Not that you couldn't remote desktop in, but there are other usage paradigms that having an embedded networked computer as a host provides. Iby pokey9000 - General
With 2-4 cores A9 cores and a GPU (that supports OpenCL!!!) you could move the slicing process into the printer. All the open slicers run fine (if painfully slow) on Raspberry Pi, and should get a boost on this board. One other advantage over the Raspberry Pi is that this board has a real LVDS interface that can interface directly with an LCD panel. The Raspberry Pi has a DSI interface that woby pokey9000 - General
Thanks for breaking the ice. I'm in A-town and wouldn't mind setting up a demo, help organize a buildathon, or print some printer part sets. PM me if anyone's interested.by pokey9000 - Texas, Austin RepRap User Group
This cape is designed to work with the PRU modules on the Beaglebone's CPU. The PRU is a simple 200MHz (custom architecture?) CPU that is designed for offloading I/O tasks from the A8. The Beaglebone has 2 such PRUs that can take over certain I/O pins. IIRC someone has done some work on firmware for these PRUs to act as very simple command processors for stepper control and temperature managemby pokey9000 - Developers
hendo420 Wrote: ------------------------------------------------------- > I ordered this one yesterday. I also ordered 2 > rolls of nylon to play with. > > > Please post when you've had some time with it. There's a lot of interest in this hotend. > The new hotend I have coming uses a heater > cartridge. Is this more efficient than a resistor? > I have problems reachby pokey9000 - General
Calibrate your motor current using Sublime's instructions. I had this problem on an overheating extruder I'd flatted until I turned out down from the usual 0.4V vref.by pokey9000 - Tantillus
1. jzatopa [email protected] 2. goopyplastic 3. pokey9000 4.by pokey9000 - For Sale
I think he means the Dreaded Communications Buffer Underrun. This is what Repetier's binary protocol is supposed to help with, and what printing from SD works around.by pokey9000 - General