Search found 1715 matches

by 626Pilot
Sat Jan 14, 2017 7:43 pm
Forum: Heated Bed How-To's
Topic: 24V Upgrade done slightly different
Replies: 2
Views: 1561

Re: 24V Upgrade done slightly different

It looks like you robbed an octopus tank! :D
by 626Pilot
Sat Jan 14, 2017 7:39 pm
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

I guess I'll find out after I have everything wired up. I think the 350W supply will make some gains vs. the old Viotek (450W) because it has screw terminals, rather than skinny little 18-gauge wires. I can run 12-gauge straight to the Onyx and SSR. Also, as dc42 points out, they have trim pots that...
by 626Pilot
Sat Jan 14, 2017 3:16 pm
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

I agree, I would put an SSR in the hot side of the bed circuit. I thought so. If the bed has +12V of potential even when the heater is supposed to be off, it's one more way for a short circuit to make something bad happen. Do you have the option of turning up the power supply voltage a bit? it depe...
by 626Pilot
Sat Jan 14, 2017 3:06 pm
Forum: General Tips 'N Tricks
Topic: How-to: Quickly hand-tune your PID values
Replies: 17
Views: 58877

Re: How-to: Quickly hand-tune your PID values

A dead-time heat manager is implemented in Repetier . It takes only two variables, which effectively describe the thermal inertia of the system. Overshoot is minimized or eliminated, and there's no oscillation around the set temp. MeasureDeadtime.png The idea is to figure out the "knee" of...
by 626Pilot
Sat Jan 14, 2017 3:14 am
Forum: Troubleshooting
Topic: Was shipped a convex-shaped heat bed. Same with the replacement
Replies: 20
Views: 2758

Re: Was shipped a convex-shaped heat bed. Same with the replacement

By heat bed, do you mean just the black Onyx PCB, or do you mean the glass disc that's clamped to it?
by 626Pilot
Sat Jan 14, 2017 12:37 am
Forum: General Tips 'N Tricks
Topic: How-to: Quickly hand-tune your PID values
Replies: 17
Views: 58877

Re: How-to: Quickly hand-tune your PID values

Added info on adjusting current and max PWM. Added advice to jog the effector down to ~Z=3, so you get the effect of whatever downwash is happening from the cooling fan(s).
by 626Pilot
Fri Jan 13, 2017 10:41 pm
Forum: General Tips 'N Tricks
Topic: How-to: Quickly hand-tune your PID values
Replies: 17
Views: 58877

Re: How-to: Quickly hand-tune your PID values

Added some disclaimers about thermal runaway, and made the formatting nicer.

rurwin, that is pretty cool. I have seen top fuel cars in action. Quite impressive. Must have burned through some expensive hardware getting all that tuned.
by 626Pilot
Fri Jan 13, 2017 10:02 pm
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

So, you can use a 24V supply with a 12V onyx without anything catching fire?
by 626Pilot
Fri Jan 13, 2017 3:39 am
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

Then, I suppose a breaker on the hot side. I can get a 24VDC power supply... but then I have two printers, so I would need two of them. I already bought two 350W "LED" power supplies. Would also need two 24V Onyxes, and two 24-12V step-down converters. It would also make my standby wattage...
by 626Pilot
Fri Jan 13, 2017 2:17 am
Forum: Troubleshooting
Topic: PID Tuning Heated Bed?
Replies: 1
Views: 473

Re: PID Tuning Heated Bed?

E-1 is not the right code. Try P0/P1. Documentation here: http://reprap.org/wiki/G-code#M303:_Run_PID_tuning

If you have any trouble doing PID tuning, try this: viewtopic.php?f=36&t=11440
by 626Pilot
Fri Jan 13, 2017 2:08 am
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

Here's a question that keeps bothering me. Why is it "right" to put the SSR on the ground side of the circuit, and "wrong" to put it on the hot side? Isn't it safer to gate the hot side? BTW, I fired up the Onyx with this SSR. It took about 20 minutes to get from room temp to 75C...
by 626Pilot
Fri Jan 13, 2017 2:05 am
Forum: General Tips 'N Tricks
Topic: How-to: Quickly hand-tune your PID values
Replies: 17
Views: 58877

How-to: Quickly hand-tune your PID values

Introduction =========================================== PID auto-tuning algorithms on various controllers can be annoying. I got tired of having to wait for them, only to see results that oscillated rather than being steady (especially during a print), so over time I learned how to do it myself. W...
by 626Pilot
Fri Jan 13, 2017 12:15 am
Forum: Troubleshooting
Topic: Holes in top layers
Replies: 5
Views: 892

Re: Holes in top layers

In KISSlicer, I would increase the "skin thickness."
by 626Pilot
Fri Jan 13, 2017 12:11 am
Forum: Filament
Topic: PETG Calibration
Replies: 18
Views: 6869

Re: PETG Calibration

Try Step 1 of my delta arm length calibration routine: m It will help you get the filament extrusion rate dialed in perfectly. Do the rest of the calibration as well, if you want. The extrusion rate is particularly important because you do NOT want to deposit extra filament. Some people recommend ta...
by 626Pilot
Thu Jan 12, 2017 11:56 pm
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

Also, is this 25-amp DC breaker good enough? https://www.amazon.com/Blue-Sea-Systems ... eaker&th=1

I used an online calculator to figure out that 24V @ 1.1 ohms is a little over 20 amps. Should I go higher?
by 626Pilot
Thu Jan 12, 2017 8:59 pm
Forum: Heated Bed How-To's
Topic: Faster Heated Bed
Replies: 124
Views: 39224

Re: Faster Heated Bed

Does this look right? I'm using the old 450W Viotek power supply, using the SSR to bypass the MOSFET on the controller because the plug gets hot. I'm using three each of the + and - wires from the PSU. 20170112_174047.jpg PSU +12V to Onyx + through a wire nut Onyx - to SSR + SSR - to PSU Ground Is t...
by 626Pilot
Tue Jan 10, 2017 8:54 pm
Forum: General Tips 'N Tricks
Topic: Use 12-gauge wire for your heated bed, and upgrade your E3D to a 40-watt cartridge.
Replies: 11
Views: 2763

Re: Use 12-gauge wire for your heated bed, and upgrade your E3D to a 40-watt cartridge.

That much I know, but then I have to jacket them somehow (heat shrink) or they will tend to unravel. I have had a little success getting the insulation to stick together with a heat gun. It's just that it seems easier to buy it pre-done. More flexible as well, as I wouldn't have to cover most of it ...
by 626Pilot
Tue Jan 10, 2017 7:30 pm
Forum: Smoothieboard and variants
Topic: Smoothieboard 2 Progress
Replies: 20
Views: 6160

Re: Smoothieboard 2 Progress

Slightly offtopic, but do you know if anyone is working on an arm solution for "desk lamp" type articulated robots, like this one?

RobotArm.jpg
by 626Pilot
Tue Jan 10, 2017 7:01 pm
Forum: General Tips 'N Tricks
Topic: Use 12-gauge wire for your heated bed, and upgrade your E3D to a 40-watt cartridge.
Replies: 11
Views: 2763

Re: Use 12-gauge wire for your heated bed, and upgrade your E3D to a 40-watt cartridge.

I got this stuff because it was two-conductor "zip wire," and I wouldn't have to use heat shrink to keep the wires together. What I would really like is 12-gauge (or lower) twisted pair. I think that would yield less EM noise, particularly when it's running in PID mode (sustaining heat by ...
by 626Pilot
Tue Jan 10, 2017 5:23 pm
Forum: Other Machines
Topic: The Palette (Mosaic Manufacturing)
Replies: 15
Views: 5102

Re: The Palette (Mosaic Manufacturing)

I've been trying to get one of these but I'm not willing to pay and wait for 6+ months. I have a delta with an effector mounted extruder I'd love to try thin on. If anyone has one they'd like to lend or sell, let me know! I will eventually have time to mess with it, when other tasks calm down. If I...
by 626Pilot
Tue Jan 10, 2017 12:26 am
Forum: Other Machines
Topic: The Palette (Mosaic Manufacturing)
Replies: 15
Views: 5102

Re: The Palette (Mosaic Manufacturing)

I got mine a couple weeks ago. There is no power switch (yeah...), the cooling fan roars even when none of the heaters are on, and it doesn't work with KISSlicer. I've tossed it into a corner and don't know when I'll have time to mess with it. The unnecessarily loud cooling fan is putting me off the...
by 626Pilot
Tue Jan 10, 2017 12:17 am
Forum: Show us your machine!
Topic: My finished V3 Kit
Replies: 4
Views: 2036

Re: My finished V3 Kit

Looks real nice!
by 626Pilot
Mon Jan 09, 2017 10:07 pm
Forum: Smoothieboard and variants
Topic: Smoothieboard 2 Progress
Replies: 20
Views: 6160

Re: Smoothieboard 2 Progress

Is there a way you guys could use opto-isolators, or some other trick, to make it so that we can hot-swap a hot end? If I do that now, I run the risk of burning out the thermistor port. Would be nice if we could do this for manual work (swap hot end with probe, swap hot end with other hot end), as w...
by 626Pilot
Mon Jan 09, 2017 9:37 pm
Forum: General Tips 'N Tricks
Topic: Use 12-gauge wire for your heated bed, and upgrade your E3D to a 40-watt cartridge.
Replies: 11
Views: 2763

Use 12-gauge wire for your heated bed, and upgrade your E3D to a 40-watt cartridge.

I built a Rostock MAX v1 way back in 2013. At the time, the strategy for wiring the Onyx heated bed was to use 4-conductor speaker wire, which was either 16- or 18-gauge. You'd use two wires for + and two wires for -. This worked alright, but I noticed that the connectors kept melting! I would have ...

Go to advanced search