Search found 16 matches

by ztatic
Fri Feb 01, 2019 10:56 am
Forum: LulzBot Mini
Topic: Print quit before end?
Replies: 2
Views: 149

Re: Print quit before end?

If USB remains connected The computer port can glitch and send spurious data at some point in a long period, such as if there's IRQ contention or the port goes to sleep based on a power setting. A USB cable with worn out connectors or damaged terminations, or that is exposed to high levels of EMI, ...
by ztatic
Fri Feb 01, 2019 9:41 am
Forum: LulzBot Mini
Topic: ABS-PC adhesion tip
Replies: 2
Views: 137

Re: ABS-PC adhesion tip

1st gen Mini, no display, original 0.5 mm nozzle on stock head. Great engineering on this puppy, aside from the lack of a display or SD card slot, which is a RAMBo board shortcoming, I guess. Newer ones have the usual conveniences, but you can still find these oldies on closeout at about half price....
by ztatic
Thu Jan 31, 2019 4:59 pm
Forum: LulzBot Mini
Topic: Adding a beeper to the Mini
Replies: 3
Views: 181

Re: Adding a beeper to the Mini

FWIW, this is an old Mini with no display or really any other "normal" local interface stuff.

Can someone identify which flavor of RAMBo is on this old thing? I should then be able to find the right schematic and tell from that whether any processor PWM's are brought out to a header.
by ztatic
Fri Jan 25, 2019 2:11 pm
Forum: LulzBot Mini
Topic: Adding a beeper to the Mini
Replies: 3
Views: 181

Adding a beeper to the Mini

I'd like the printer to beep at certain times.

There's an 8-pin header labeled "Analog" on the RAMBo board. Is one of these pins or pairs of pins where the "BUZZER" signal is connected (PE2 on the ATMEGA processor chip)?

Does the M300 cause a PWM from PE2?
by ztatic
Fri Jan 25, 2019 9:44 am
Forum: LulzBot Mini
Topic: Looking for better PEI to Glass bed adhesive 200MP 468MP fail ABS temperatures
Replies: 14
Views: 874

Re: Looking for better PEI to Glass bed adhesive 200MP 468MP fail ABS temperatures

I print ABS-PC with a 110°C bed temp and notice no problems with adhesion of the PEI to the glass. FWIW, I print ABS on a FlashForge, and have never had to use a 110°C temp with their print bed stickers. 100°C works fine, and in fact ABS sticks a bit too well, and requires heating the bed to 60° for...
by ztatic
Fri Jan 25, 2019 9:37 am
Forum: LulzBot Mini
Topic: ABS-PC adhesion tip
Replies: 2
Views: 137

ABS-PC adhesion tip

Hopefully helpful tip for those who've tried the widespread and ridiculous suggestion of using PVA glue, which melts at the appropriate bed temperature (≥110°C) and ensures that there will be no adhesion at all. Using PVA is about like spreading oil on the print bed. Instead, coat the bed with a ver...
by ztatic
Fri Jan 25, 2019 9:22 am
Forum: LulzBot Mini
Topic: Inadequate hot end heater power (Mini 1)
Replies: 3
Views: 132

Re: Inadequate hot end heater power (Mini 1)

Do Lulzbot engineers not monitor the forum?
by ztatic
Thu Jan 24, 2019 3:33 pm
Forum: LulzBot Mini
Topic: Inadequate hot end heater power (Mini 1)
Replies: 3
Views: 132

Re: Inadequate hot end heater power (Mini 1)

Can this heater be used?

https://e3d-online.com/high-temperature ... cartridges

Assuming the MOSFET is beefed up, does it fit the heater block? and can the power supply provide the extra current for a 65W cartridge?
by ztatic
Thu Jan 24, 2019 3:15 pm
Forum: LulzBot Mini
Topic: Mini 1 stops printing in middle of print.
Replies: 14
Views: 901

Re: Mini 1 stops printing in middle of print.

During the current print, which seems to be going to completion for a change, I noticed some chattering mid-way. I took it to mean there was competition for the IRQ that the USB is using. I think this means that it is important to have a computer dedicated only to running these printers.
by ztatic
Thu Jan 24, 2019 3:03 pm
Forum: Hardware
Topic: Helpful Links!
Replies: 32
Views: 60592

G-code Wiki

G-code and M-code for Marlin specifically, therefor Lulzbot:

http://marlinfw.org/meta/gcode/

This is better than trying to use the RepRap wiki, which lists multiple code flavors.