Search found 30 matches

by lowfat
Tue Jan 16, 2018 3:18 am
Forum: 3D Printers
Topic: How good can the print-quality of a (high-end?!) DIY-printer be?
Replies: 4
Views: 2943

Re: How good can the print-quality of a (high-end?!) DIY-printer be?

Per $, you definitely can build better printers than you can buy. But independent hot ends is a bit more challenging. That is a relatively new concept and there hasn't been a lot of work done w/ it in the reprap community. I'd probably look in to something like 2 in, 1 out hotend, like an E3D Cyclop...
by lowfat
Wed Dec 13, 2017 3:29 am
Forum: 3D Printers
Topic: Show your printer(s)
Replies: 52
Views: 17029

Re: Show your printer(s)

Monoprice Mini http://hostthenpost.org/uploads/142f4a8e36bd043aaf1add375a8b2715.jpg http://hostthenpost.org/uploads/a9231fb126ce8ee0d71dd46bfcd4338d.jpg http://hostthenpost.org/uploads/ff91055c6e6654c119290ad7127e610b.jpg http://hostthenpost.org/uploads/9fecde3a54b9ad8b87a5ab73f0eff4e3.jpg
by lowfat
Tue Dec 12, 2017 4:41 pm
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 2677

Re: Parts suggestions

Hooked up the heated bed on my Monoprice Mini to a 24V 350W Mean Well. I dropped the voltage on the PSU down to about 21V. So about 160W in to its tiny heated bed. Heats up to 110C in 75s! :shock:
by lowfat
Tue Dec 12, 2017 4:29 pm
Forum: Help requests / Purchasing assistance
Topic: Anet A8 Extruder upgrade
Replies: 2
Views: 1586

Re: Anet A8 Extruder upgrade

You can't print higher than about 295C w/ any hot end that uses a standard thermistor. You need to use a thermocouple, like a PT100. If you are using the stock board, you will not be able to use a PT100. They need an open ADC pin, most non-Melzie based boards should have a few available. The PT100 w...
by lowfat
Wed Dec 06, 2017 5:58 am
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 2677

Re: Parts suggestions

slippyr4 wrote:
Tue Dec 05, 2017 10:47 pm
Surely you mean in parallel?

Ya. Parallel. :lol:
by lowfat
Tue Dec 05, 2017 10:05 pm
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 2677

Re: Parts suggestions

What thermal fuses are you using that can handle 20A+? https://www.amazon.com/gp/product/B00JR5ED7U/ Mine are only 10A, but the bed heats up so quickly it only needs to stand up to a minute max of sustained current. I'm using a 20A PSU, I guess if one were using something larger it might draw too m...
by lowfat
Tue Dec 05, 2017 3:59 pm
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 2677

Re: Parts suggestions

A 24V bed isn't going to heat up quicker. Not unless you are running a 12V heater w/ a 24V PSU, which is dangerous. Which is extremely fast and rad you mean :lol: Do you know of any specific safety issues besides the fact that if it fails, it can fail more spectacularly? On the 24v into 12v beds I'...
by lowfat
Thu Nov 16, 2017 3:00 am
Forum: 3D Printers
Topic: Show your printer(s)
Replies: 52
Views: 17029

Re: Show your printer(s)

mgalamba wrote:
Thu Nov 16, 2017 2:05 am
Thanks to Hewlett Packard & Epson..... Mega+RAMPS. ...


Thanks to Tom and his excellent guides!!!!!!
Currently working on a New design. ... from scratch
How much did you spend on that? How noisy are those DC motors? Are they a closed loop system? Can you get decent speeds out of it?
by lowfat
Sun Nov 12, 2017 8:18 pm
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 2677

Re: Parts suggestions

1.7 ohms is a bit high! My MK3 are both less than 1 ohm. Did you subtract your probe resistance? If you are going to run a 12v rated bed at 24v you need to limit the duty cycle in your firmware; if you don’t then things probably won’t last very long - your bed mosfet probably won’t be rated for the...
by lowfat
Sat Nov 11, 2017 7:44 pm
Forum: Help requests / Purchasing assistance
Topic: Parts suggestions
Replies: 22
Views: 2677

Re: Parts suggestions

What do you guys use for a power supply? A 12V MK3 head bed is about 1.7 ohm. Running that @ 24V is about a 340W draw.