Show all posts by user
Safety...
As with everything from China, you pays your money, you takes your chance.....
by
vreihen
-
General
Tri-D Printing has an awesome bag of Kossel hardware, which includes all kinds of M3 allen screws. I picked up a kit (not even building a Kossel!) just for the quantity of M3 hardware. I order a box of M5's any time that I'm buying 2020 extrusions, and our local Lowes has a few M4/M5 items in a pinch.....
by
vreihen
-
Reprappers
Quotestevemeetswest
The only thing I have changed that I didn't think would matter is the fan. I accidentally broke one of the blades and so I replaced the fan with this one:
The fan above is rated for 4.1 CFM. Amazon has others that are rated for 6+ CFM. Hint - "silent" fans usually don't move as much air as "loud" fans.....
by
vreihen
-
Printing
Quotestevemeetswest
I'm running the heat end at 240 with black ABS.
For kicks and giggles, try another color. Black filament is the industry's dumping ground for floor sweepings, regrinds, and anything else that they can try to use as filler in place of raw plastics. Not saying they all do this, but it is a standard warning any time someone has jamming problems with black filament.
Quotesteve
by
vreihen
-
Printing
My only concern with using three planes in a printed socket is wear.
For kicks and giggles, I just looked up the cost of PTFE and graphite sheets to see if it was practical to CNC an entire replacement effector plate and carriages. Unless someone can find a kitchen cutting board or some other domestic product that uses one of these materials to use as raw stock, the material probably costs more
by
vreihen
-
Delta Machines
Speed does not kill. It's the sudden stop when you hit the wall that kills.....
by
vreihen
-
Sandbox
http://www.amazon.com/Maxpower-333665-Residential-065-Inch-1800-Foot/dp/B003VPAEL6
Read the reviews on Amazon for the size just below 1.75mm. I bet that quarter of them are from people using the thinner stuff as printer filament.....
by
vreihen
-
General
Visit the Delta section on this forum. It's where all the cool people hang out. Well, here and in the Google Deltabot group.....
by
vreihen
-
Reprappers
That's the way a Delta is supposed to work! The probe is only used if you run an automatic calibration.....
by
vreihen
-
Reprappers
Quotemikes3ds
Hate to repost, but do all the endstop switches have to be at the same height? ( Only two are at the same hieght and one is off, one wont fit into the hole)
Ideally, they should be as close as humanly possible. In the non-ideal world, one of the first steps in manual calibration is setting the endstop offsets for each tower, since the printer is usually more accurate than a ruler/
by
vreihen
-
Delta Machines
Quotedougal1957
Quotevreihen
You should use Smoothieware and M665/M666, which blows the EPROM calibration away in terms of simplicity.....
What you mean that Smoothieware is available for the Mega2560/Ramps combo now must check that out.
Doug
Sorry, it can NEVER run on such limited hardware. I just meant that M665/M666 is a much simpler way to change/save the settings than the clunky Repetier
by
vreihen
-
Delta Machines
The hotend is mounted to a hinge-type setup at the top. The springs hold the hotend down. When the hotend touches the glass, it lifts off of the switch to trigger contact. When that happens, the nozzle distance is a tad below zero.
There are pictures in AndyCart's Cherry Pi III Thingiverse entry:
http://www.thingiverse.com/thing:344408
You can reach AndyCart on this site in the Delta s
by
vreihen
-
Reprappers
You should use Smoothieware and M665/M666, which blows the EPROM calibration away in terms of simplicity.....
by
vreihen
-
Delta Machines
AliExpress (China) has several options, if you want to wait for them to be shipped. I believe that they key word is K-800 or Kossel 800, which refers to the price in local currency and not any particular frame dimension.....
by
vreihen
-
Delta Machines
FYI, that is last generation's B+ model.....
by
vreihen
-
Reprappers
Is anyone concerned with the three top corners possibly not being square after using these tensioners?????
by
vreihen
-
Delta Machines
Quotefoul_owlMy nozzle diameter is apparently 0.4 mm, since that is listed as the default on the e3d website.
My layer height has generally been 0.3 mm, except the first layer which has been 0.4 mm, so sounds like that is correct.
There's your problem! Draw the 0.4mm circles and stack them. How much contact is there between the 0.4mm layers? I have a 0.4mm diameter nozzle, and run it at 0.2m
by
vreihen
-
General
Quotemrorange26
I am having major problems with strands I have tried loads of combinations in retraction settings and im still getting them.Any suggestions]
Don't be afraid to go higher than 5mm retraction, despite what the defaults are in most slicers. Bowden setups need more retraction, due to slop in the system. Also, most firmware has acceleration limits that also apply to the extruder. M
by
vreihen
-
Delta Machines
You are missing the part that most of the 32-bit boards are 3.3V, whereas the 8-bit boards are 5V. It is cheaper/cleaner to design a new board than adapt the old one.
Smoothieboard is not based on the DUE. That's the DUET board.
When you get done with your DUE-based controller, you will still be stuck with 32-bit ports of the usual 8-bit firmware and their nested #ifdef spaghetti. No, thank
by
vreihen
-
Controllers
It sort of looks like a pulley slip on the stepper motor shaft. I'll even venture a guess that it is the motor driving the rods/spring that are in focus on the above picture, since the skew is in that general direction.....
by
vreihen
-
Delta Machines
The Red Cross (or Red Crescent) has a long history of providing aid for disasters around the world, and is worthy of everyone's financial support.....
by
vreihen
-
General
1) Make sure that you are using heavy gauge wire to the bed, as in 14 AWG minimum.
2) 24 volts to the heated bed (via SSR) will certainly fix the problem.
I'm feeding my 300mm diameter Onyx with 19V from a de-tuned 24V supply, and it has no problem holding 110C or getting there from cold in 5-6 minutes.....
by
vreihen
-
General
I had a PLA effector plate fold like a taco shell when I cranked the hotend up to print ABS. If you plan to use a heated build chamber or print ABS, then start out with ABS parts. You may also want to check out AliExpress, as multiple vendors on there are selling metal bracket Kossel parts.....
by
vreihen
-
Delta Machines
Quotethe_digital_dentist
I get my 8020 (typically 1.5" x 1.5") from my local industrial scrapper for $2 per lb.
Find your local scrappers and get to know them. If you live near a medium to large population city, there's probably a place where you can get this sort of thing very cheaply. They often have other linear motion parts you can take off machines for pennies on the dollar.
It does not
by
vreihen
-
Extruded Aluminum Frames
Certain printer types (Delta and CoreXY) push 8-bit processors (RAMPS, RAMBO, Megatronics, etc) to their redline and beyond doing complex math. Add a graphical LCD, and they can't keep up. In those cases, it makes sense to upgrade to a 32-bit offering, such as Smoothieboard and compatibles, Duet, or (gasp) even one of the DUE-compatible shields like the RADDS (but stay away from RAMPS-FD as it
by
vreihen
-
Reprappers
The 3DR and Rostock are yesterday's designs. The Kossel is a little bit fresher, and China has recently begun mass-production of molded plastic and CNC-cut aluminum brackets to drive the coats down and frame stability up. The Cherry Pi is a close descendent of the Kossel, and borrows (cherry picks) innovations from many other designs. One of those two are pretty good options, depending on whet
by
vreihen
-
Delta Machines
Have a hand on the power switch when you send the first home command in case the motors move backwards, and set the carriages mid-way by hand so that you have reaction time to hit the switch if they move the wrong way. Even better, do the first test with the belts off, and just watch the motors spin.....
by
vreihen
-
Delta Machines
QuoteAndrewBCNThese is absolutely no reason why this forum should dedicate any of its scarce resources for support of non Open Source commercial products.
Since:
1) Repetier Host has gone closed-source, and
2) Repetier has their own sub-forum here supporting their products
...then I guess that there's proof the management of this site does not share your opinion in this regard.
However, the
by
vreihen
-
Controllers
My guess would be loads on the +5V power rail, so that the ATX power supply regulates +12V properly. Check out the excellent ATX power supply article in the Wiki for an explanation of why the +5V rail needs to be loaded on some ATX power supplies.....
by
vreihen
-
General