Currently, standard extruders today probably will not cut it. What you need is a longer melt zone. Basically, increase teh length of the threaded rod and screw on 2 or 3 heatblocks.by Hazer - General
They are patenting using a switch to home. This is basic for any computer controlled motion. Every motor drive has a 'home' input for the past 50 years. This goes beyond 3d printing patents, they are submitting patents on the basic fundamentals of manufacturing that have been implemented for the past 100 years.by Hazer - General
To be fair: They kickstarted the OneUp and TwoUp products. Everyone knows that kickstarter products always get delayed in delivery. Unfortunately for the original poster, they also introduced retail pre-sales on their website. Since these retail purchases were meant to be fulfilled after the kickstarter, they got delayed even further than the promised date. The sad thing is, QUBD offered no exby Hazer - General
With a delta, its not where the moves start and end. Its how it calculates the move during the move. If you have not set your arm lengths and radius properly with your delta in the firmware, your moves will be concave, which fits exactly with your problem. Even a little off will cause problems.by Hazer - Delta Machines
To some degree, there is a point where you over-engineer the solution. In the obvious respect, most printers at this level are about attaining some degree of accuracy of the commercial units without spending the cost. I could give many examples, for instance the always common Z drive mentioned earlier. From a certain point of view, people have mentioned the $3 threaded rod, the $10 ACME screw, thby Hazer - General
When I setup my HBOT, I had this kind of problem too. Its a bit too hard to explain exactly the way to get it right the first time but what you can do is this: Plug in one motor backwards and see what changes (make sure motors are OFF before removing and plugging back in). If that does not work, swap the motor plugs and see what happens. Then flip the other motor plug backwards. Eventually yoby Hazer - Reprappers
+1 ^ Slicer already does this with a single nozzle. It is limited to your nozzle size. A very common size and width ratio is using a 0.4mm nozzle with 0.1mm layer heights for perimeters and infilling every 3 layers with a 0.3mm height. You get limited at how much you can lay doown by nozzle size. While you dont want a 1:1 ratio of width-height, you could get 4 perimeters to one infill with a 0.by Hazer - General
Um, the schematic you were using has the endstops wired to the RAMPS max endstop headers, and the probe to the Z min endstop header. The printrboard does not have both max and min endstop headers. You have to define the pins as one or the other. So where did you wire the probe to on the printrboard? You could use the unused E endstop header and define that as the min Z endstop in the pins.h file.by Hazer - Delta Machines
They are saying that each 608 bearing has twice the surface contact of smaller bearing due to larger diameter, and then there are two of them for a total of 4 times. Now, that would be a correct statement except thhat these are idling contacts, they do not drive the filament.by Hazer - Delta Machines
There are two incomign 12V power connectors. One connector provides the 12V for just the heated bed output, the other connector provides power to everything else. Did you wire power to both connectors?by Hazer - General
In the X-Y plane, you can get this effect from micro-stepping of the extruder. Its commonly called moire effect, where a repeated 'waviness' happens as the lines are extruded. This is caused by the systems extrusion being too close to the available torque of the extruder. If you look at the extrusion from top-down, the extruded material would not be constantant, but look more like an hourglass sby Hazer - Delta Machines
use gcode command to see endstop status M119. Fix your config from there. if you dont have physical endstops on all min and max, disable them in pins.hby Hazer - Delta Machines
QuoteNewPerfection QuoteHazerMcMaster Carr sells M8 dowel pins. Depending on type, you can get internally threaded for $1.50, or standard ones for $10 for a pack of 5. Or you can print an 8mm dowel pin for almost free Not for an extruder idler bearing.by Hazer - Delta Machines
McMaster Carr sells M8 dowel pins. Depending on type, you can get internally threaded for $1.50, or standard ones for $10 for a pack of 5. Also, you can cut hardened shafts very easily with a plain dremel tool with regular cutting discs. Its amazing how well it works.by Hazer - Delta Machines
The smoke is coming from the MOSFET burning the header. This happened to me also. You need to get a TO220 heatsink and screw it onto the MOSFET (black thing with metal tab on its back). You also need to mount a fan above your bed and have it powered at all times. This will cool down the MOSFETs, the fuses, and your stepper drivers. If you are using a 144 watt heater (12V * 12A) then you will needby Hazer - Reprappers
Quick question: do you print the bottom hub piece solid? I printed it 6 shells with 30%, but ended up snapping the main column off the base. It was probably my fault for not being careful enough when I was handling it, but I wanted to know what you guys have done.by Hazer - Delta Machines
Also, you should put a heatsink on your FET driver with high current bed. Mine got hot enough to burn the header next to it. You will want a fan on the board without exception.by Hazer - Reprappers
Better yet, are your wires correct? If they are not wired correctly, the motor will just jiggle in place.by Hazer - Reprappers
That link where he is printing 750mm/s his print got trashed due to the controller not keeping up. But here is a link to another print he did at 500mm/s with settings and finished product: http://ichibey.exblog.jp/18401224/ You will have to translate as it is in Japanese. But his blog is worth it. This guy has done some interesting experiments in printing including designing his own HBOT and dby Hazer - General
But, high speed is achievable: http://www.youtube.com/watch?v=zhV2jwhb9n8by Hazer - General
For me, one of the most attractive parts of this design is the single solid piece. The more pieces, the more complications, the more slop ends up being in the final design.by Hazer - Delta Machines
Have you guys adjusted the current on your stepper drivers? Too high or too low and you will have problems. Also, it would not hurt to swap the direction on either the A or B side of your motor to make sure you do not have the coils in opposite directions, which would normally cause the motors to stay in place and 'jiggle'. But since you changed the frequency in Marlin, your symptoms may have chaby Hazer - General
QuoteTheyCallMeJohn I noticed the same thing at several booths, especially Inventapart. They had a model of rook where the top showed gaps. Of the smaller companies, I thought Deezmaker had some pretty good parts on display. Did anybody check out the 3D Monstr? I liked the concept but seemed like some parts were way over designed and needs to be cleaned up some. Also maybe someone could explaby Hazer - General
Know what? You win. I concede. Your eloquent use of logic and reasoning has made me see.by Hazer - General
Quotetjb1 QuoteHazer I never said the engineering was costless. What I said was making that engineering open-source is the same as donating such said cost, which by terms of definition makes it 'free'. If you would read clearly what I stated before, yes, for Lulz it was not free. But for everyone else it is. For any company SELLING the product that they developed, there will be an engineering cby Hazer - General
I never said the engineering was costless. What I said was making that engineering open-source is the same as donating such said cost, which by terms of definition makes it 'free'. If you would read clearly what I stated before, yes, for Lulz it was not free. But for everyone else it is.by Hazer - General
This debate is a nuance on perspective. From the perspective of any OTHER than the developer(s), the engineering of anything open-source is free. At least until they modify the design, which they then become classified developers. As Vegasloki said, a developer does invest into the design. If the developer is a company, the cost of the engineering of the design is rolled into the companies oby Hazer - General
By definition: Lulzbot released their engineering efforts as open-source. They gave it away. Which again is free. It is no different than any other open-source material. Time was spent by someone for the purpose of freely distributing technology. Or are you saying that all of the other people who contributed to the entire RepRap scene are worth nothing compared to one guy at Lulz?by Hazer - General
ACME rods are built to tolerance specifications. Regular threaded rod is not. ACME was designed for linear motion. Threaded rod was designed for tightening things together. Threaded rod has alot of variance because it does not hinder its intended use by having the variance. Also since threaded rod has so much variance, the accompanying nuts for the threaded rod have alot of play. ACME nuts have mby Hazer - General