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Re: Cherry Pi III Is Available - 9 years ago

My Updated Pi! Initially built it about a year ago, had issues (self inflicted) with the carriages and other mechanisms, have since revisited the project and upgraded the motors, end stops, hot end mounting and cooling, Youtubishness Currently it's printing beautifully as low as .15mm with an E3D V6. There is a 92mm fan on the rear right cooling the Ramps. Enjoy!

by Zzyzxx71 - Delta Machines

Finally!! 288 Square inches of heated bed under control. - 9 years ago

Finally after trying 3 different methods, burning up 2 24 volt power supplies and giving up on using DC/DC SSR's, I've finally got 2 12x12 heated beds working in tandem. it's not the most elegant solution, but it's good to within 3 degrees of target. Solution is 2 x 12v 360w power supplies feeding 2 x 12x12 makerfarm heated beds, activated by 2 of Makerfarms heated bed relays. I had to change

by Zzyzxx71 - Look what I made!

Thoughts on the power expander? - 9 years ago

Ran across this - Reprap.me Power Expander. Anyone used this before? I have learned my lesson regarding SSR's, and have paid my penance in cash. Luckily I haven't blown up any more power supplies. I have 2 mechanical relays on the way, but eventually want to switch over to a known good reputable MOSFET based solution. Thoughts?

by Zzyzxx71 - Reprappers

Spltting Thermistor Signal? - 9 years ago

If I were to split the signal coming from a thermistor into 2 2 pin leads, would the signal be halved or would it read as expected? The purpose would be to change some behavior I've discovered using Repetier Firmware. Thanks in advance!

by Zzyzxx71 - Reprappers

Re: Solid State Relay - Normally Closed? - 9 years ago

I like it - will keep that in mind!

by Zzyzxx71 - Reprappers

Re: Solid State Relay - Normally Closed? - 9 years ago

Yes I run all my SSR's with heat sinks.

by Zzyzxx71 - Reprappers

Working Repetier Firmware 4 Cyclops/Ramps 1.4 - 9 years ago

Anyone have a working config (configuration.h) for a Ramps 1.4 running a dual extruder E3d Cyclops? I figure if I get the tool settings working, I wan adjust the rest to work. Current issue (and the LAST issue) is the hot end simply doesn't heat up. The same firmware, 2 seperate boards, 3 seperate hot ends, tested with multimeter and a fan (in addition to the hot ends), can't think of this bein

by Zzyzxx71 - Reprappers

Re: Solid State Relay - Normally Closed? - 9 years ago

I took a chance and picked up another SSR - Different Manufacturer.. Tested it tonight, continuity tests show it activates correctly, I'm tempted to simply get 2 12v 360w power supplies and another SSR and trigger them both from the heated bed voltage from the ramps. It wouldn't be as elegant of a solution, but it would work.

by Zzyzxx71 - Reprappers

Re: 2 12v 12x12 Heated Beds - 9 years ago

I'm starting to get the idea a 480w power supply isn't going to cut it. I've now burned up my second one, although the numbers indicate 480w should be enough.

by Zzyzxx71 - Reprappers

Solid State Relay - Normally Closed? - 9 years ago

Just wired up my SSR-25DD relay with a 24v PS and 2 12x12 12v heated beds in series, and it appears that the relay behavior normally closed? Did I get a bum relay? With the power supply plugged in, and the heated bed (via the ramps) turned off, the bed heats up, There's no incorrect wiring that could have created this behavior is there?

by Zzyzxx71 - Reprappers

Re: 2 12v 12x12 Heated Beds - 9 years ago

Resistance through the heated beds in series is 1.4ohms, I'm not really sure what to do with that information. Is that significant?

by Zzyzxx71 - Reprappers

Re: 2 12v 12x12 Heated Beds - 9 years ago

Quotethe_digital_dentist It looks like a nice printer! You will probably need a heatsink and maybe a fan on the SSR. Where is the thermistor that monitors bed temperature mounted? How is the Z axis implemented? All I can see are two screws and no guides/bearings. Thanks! I alreaady have a heat sink for the SSR, and plan on a fan to supply airflow for both the ramps and the SSR, which will be

by Zzyzxx71 - Reprappers

Re: 2 12v 12x12 Heated Beds - 9 years ago

Resistance looks good, checked that after blowing up the PS. Tested the PS with no load, meter showed 24v, not sure what else I was to look for. PS was set to 110, learned that lesson years back.

by Zzyzxx71 - Reprappers

2 12v 12x12 Heated Beds - 9 years ago

Greetings, I'm sooo close! Currently I'm building a CoreXY printer which is doing mock prints successfully, everything is running great on a Ramps 1.4. Repetier Firmware, Cyclops hot end, etc. BDP - Big Damn Printer Only problem i'm having (or I think I have) is powering 2 Makerfarm 12x12 heated beds. My original plan was to switch a 24v circuit using a DC/DC relay (tested working), and wire

by Zzyzxx71 - Reprappers

Re: 2 beds, 1 source? - 9 years ago

I think I should be able to do this with a 24v PS, and wire the beds in series, then use a DC/DC SSR to activate.

by Zzyzxx71 - Reprappers

2 beds, 1 source? - 9 years ago

I'm in the process of building a coreXY with a print volume of ~ 300mm x 600mm. for the heated bed I'm using a pair of 300x300 12v beds. Any recommendations regarding wiring them up to activate off of a standard Ramps? I'm OK with only getting a reading off of 1 of them. Not too worried about the bed temps being exactly identical. Obviously multiple power supplies and at least 1 relay would be

by Zzyzxx71 - Reprappers

Re: Heated bed power requirements for new design - 9 years ago

The heated beds are capable of being powered with 12 or 24v. Am I correct in my understanding that as voltage goes up, amperage requirements go down within the same circuit? The goal of this question is to determine power supply requirements for the heated beds.

by Zzyzxx71 - General

Heated bed power requirements for new design - 9 years ago

Greetings! I'm investigating the power requirements for my latest printer, a coreXY with a print volume of 24x12x12. I'm planning on using 2 x 300mm heated beds, the power requirements for 1 of them is ~12v@20amps, but I'm considering going 24v - Would the amperage requirement for 2 of them be 20 amps for 2 of them run at 24v? Thanks in advance.

by Zzyzxx71 - General

Re: Cherry Pi III Is Available - 10 years ago

OK new update - about ready to stab myself in the face after working on this for the last 4 hours or so. The following is my latest M666 L: 04:17:30.479 : Current Delta geometry values: 04:17:30.479 : X (Endstop Adj): -4.00 04:17:30.479 : Y (Endstop Adj): -7.50 04:17:30.479 : Z (Endstop Adj): -5.75 04:17:30.484 : P (Z-Probe Offset): X0.00 Y0.00 Z0.80 04:17:30.484 : A (Tower A Position Correcti

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

Woohoo!! It appears I had a bad board afterall - new arduino/ramps seems to have taken care of the Y axis max end stop issues I was having. I'm still having issues with movement - I only have manual movement in the forward left quarter (z axis is fine, X only moves left of center, Y only moves to forward of center). When homed repetier shows X at 115, Y at 115 and Z at 237, any ideas? Edit 4:

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

Noted, but I've rebuilt that end stop twice. (using both new switches, and existing working switches). If I screwed this up, I've screwed it up 4+ times.

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

QuoteAndyCart QuoteZzyzxx71 QuoteAndyCart Your tower designations and I assume your stepper and limit switch RAMPS connections are incorrect. X is front left, Y is front right, Z is the rear tower. If you get those correctly connected it may just spring into life! Awesome - Fixed! Edit #2: It appears I only have access to the forward left portion of the "cylinder", X only goes left of center, i

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

QuoteAndyCart Your tower designations and I assume your stepper and limit switch RAMPS connections are incorrect. X is front left, Y is front right, Z is the rear tower. If you get those correctly connected it may just spring into life! Awesome - Fixed! Edit #2: It appears I only have access to the forward left portion of the "cylinder", X only goes left of center, it refuses to go right, same

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

Making a little progress here, have the firmware installed, for some reason had to invert the end stop logic for x/y/z for it to report correctly (M119). Edit: turns out I had a buggy end stop switch. Not sure X and Y axis are working as they're supposed to though...

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

Any chance someone could post up their firmware folder for a working Pi III? I have the bed/hot end and display working, Extruder is working correctly, but up/down/left/right isn't working and I can't seem to find a resource for getting that setup anywhere. edit: I don't have autocalibration setup, was planning on manual calibration. Thoughts? Thanks.

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

I've updated Maso/Andy's merged effector even further, having issues getting my E3D v6 to mount with clearance for any stock fan. it's a tight fit, but it now works. it's a tight fit, and uses 3 x 20mm m3, I also use 3 x m3 locknuts on the bottom. Remainder of files can be found here I'm sure there are others out there looking for a 10mm ball bearing E3D V6 solution. Hopefully this helps.

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

I took Andy's updated 8mm all metal hot end effector and Maso's 10mm ball bearing effector and merged them - I started with Maso's effector, removed the hinges, end stop mount hole, rounded out the extruder hole, expanded it to match the diameter of the hole in Andy's effector. I duplicated the mounting holes from Andy's effector and made small risers so the mounting hardware from Andy's effec

by Zzyzxx71 - Delta Machines

Re: Cherry Pi III Is Available - 10 years ago

Is there a version of Andy's effector for metal hot ends for struts with 10mm ball bearings? I printed out the version posted on page 14, but the sockets for the ball bearings in the effector seem unusually small, almost as if they're for 8mm ball bearings. Additionally where can I find this calibration guide? I've seen multiple people reference it, but haven't found a link anywhere. Thanks in

by Zzyzxx71 - Delta Machines

Re: Panacutt Azteeg X3 Pro issues - 10 years ago

I had to have mine replaced. The replacement is currently up and running with no issues.

by Zzyzxx71 - RAMPS Electronics

Re: Cherry Pi III Is Available - 10 years ago

For those of you in the states - I did some research and ran across these. www.ebay.com 2 sets shipped in the states comes out to about $16. It appears these have a M6 threaded shaft, and an 8mm ball. I've ordered 2 sets and will report my findings when I receive them.

by Zzyzxx71 - Delta Machines