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Messages - whosawhatsis

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Bukito General Assembly / Re: Y motor moves only one time after reboot
« on: April 16, 2014, 09:46:08 PM »
So after the Y axis "takes one command", does it move the full distance requested, then refuse to move again? Does it make a difference if the first command is a (positive) jog command (like G1 Y100) or a home command (G28 Y0)? Is the motor locked after the move, or does it move freely?

I have been working a lot with Cura recently as well, and I'm planning to release official Cura profiles for the Bukobot and Bukito in the near future.

We originally had open access to the wiki, but the volume of spam attempts was overwhelming and we had to lock it down. As is explained on the front page (now kind of hidden between things): If you would like to register to contribute to these pages, you will now need to email us at wiki[at]bukobot.com with a USERNAME, Your Real Name and Email. You will then get a return email with a random password to login. Sorry to have to do this, but we've had many spam bots and will keep this until we figure out a better solution. Thanks.

Fixed, thanks.

Hardware & Mechanics / Re: Extruder Stalling Problems
« on: April 16, 2014, 09:03:18 PM »
Their ABS seems horrible, if I'm wrong let me know, but I ordered a sample and when  I tried to use it it just snapped over and over again right at the extruder.  So when I went to remove it from the tubing it had broken all along the inside of the tube every 2 inches or so.  I would not personally recommend their ABS natural.
Please report this issue with the ABS using the contact form at http://toybuilderlabs.com/contact/. There have been a few rare occurrences of this issue with their material, but they're quick to replace the faulty spools and are dedicated to finding and eliminating the cause, so they need to receive reports of this issue whenever it pops up.

Bukito General Assembly / Re: Extruder motor not working
« on: April 09, 2014, 08:17:11 PM »
Ah. We've seen that once or twice since shipping the first batch, and I've since built a test rig so that we can check all of those cables before sending them out in future batches.

There is a flow rate multiplier slider in Repetier Host for adjusting while printing, or you can use the extrusion multiplier in Slic3r's filament settings, though if everything else is working properly and you have the correct diameter measurement for your filament in Slic3r, these should not be necessary unless you are using a filament like TPE, which compresses into the drive gear enough to reduce the drive gear's effective diameter while pushing it.

ABS can be glued with acetone (actually a solvent weld that is likely to be stronger than the normal bond between layers). You can get a similar effect with PLA by using Weld-on #4 (active ingredient is dichloromethane, which is a solvent for PLA).

Kisslicer can be used, but you'd have to make your own settings for it. We haven't experimented with it enough to distribute profiles.

What is your goal in looking for a 64-bit native slicer, speed? Slic3r's speed has more to do with the fact that large parts of it are written in python instead of C (still a huge improvement over skeinforge, which I believe is all python). Cura is all C is extremely fast, and we have been experimenting more with that. I hope to have Cura profiles ready do distribute soon.

The brand is important if you're going to use glue sticks. Different brands use different formulas. They may all work similarly for gluing pieces of paper together, but that doesn't mean they'll work the same for gluing other things. Paper is porous and fibrous, making it easier to glue than just about anything else (anything that permeates the fibers and then hardens will do). There are even different brands of glue that work for different plastics.

Bukito General Assembly / Re: Y motor moves only one time after reboot
« on: April 09, 2014, 07:46:45 PM »
Are you getting a "commads waiting" message, or any errors in the console? Does it take move commands for other axes before/after that?

I've been getting good results with T-glase printing at 250C at 50% of the normal speeds. I'm also using the firmware retraction feature available in the latest firmware (https://github.com/whosawhatsis/Marlin) to run retraction recovery much slower (closer to printing extrusion speed) than the retraction to get rid of the force that is most likely to cause the filament to buckle. The same settings have been working well with Ninjaflex, though it requires an extrusion multiplier of about 1.1 due to the soft filament being pressed deeply into the drive gear, reducing its effective diameter.

General 3D Printing Talk / Re: Getting started with Bukito 1.75 PLA
« on: April 02, 2014, 09:26:01 PM »
Unfortunately, when those connectors break, in my experience it is impossible to re-solder them without destroying them, so replacing the circuit board is the only option. Email me at Rich@deezmaker.com to arrange a replacement.

Bukito General Assembly / Re: Extruder motor not working
« on: April 02, 2014, 09:14:01 PM »
Hmm, try switching the IDC cable going to the Z axis board to go to the E axis board, then try moving the X axis. This should make the E motor turn unless it is just a bad motor. If this makes it turn, move the other end of that IDC cable (the one in the port marked X) to the one marked E, and try moving the E axis again. This will tell you if the E driver is working.

Bukito General Assembly / Re: Extruder motor not working
« on: March 30, 2014, 07:28:44 PM »
Try switching the motor cable (the short 4-wire cable going from the circuit board to the motor body) with one of the others. That is the most likely failure point, as our supplier flaked on us and we ended up needing to hand crimp those ourselves for the first batch.

General 3D Printing Talk / Re: Getting started with Bukito 1.75 PLA
« on: March 29, 2014, 06:36:45 PM »
The filament drive gears are machined to very consistent specifications. If it's not pushing the filament far enough, it's probably because either the drive gear is not properly centered on the filament with the setscrew tightened on the flat of the motor shaft, or you're trying to push the filament too fast (or into a nozzle that's not hot enough) and the motor is skipping. Trying to adjust for mechanical issues by changing settings in firmware is just asking for trouble.

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