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Rostock, Kossel, Simpson, 3DR, and more. See: http://reprap.org/wiki/Category:Delta. Previously named "Delta Robots and Stewart Platform"
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Re: Autolevelling z_probe_offset what is this value used for? - 5 years ago
I think I'm running into a similar misunderstanding with Z_PROBE_OFFSET_FROM_EXTRUDER. I perform a bed level G29 as part of my start script and need to manually set the Z-offset to -0.5mm, via LCD. And for the next print right after that, offset needs to be set to -1.0mm because another bed level was done with Z-offset at -0.5mm. Apparently, the remedy is to add to the start script: zero the Z-oby firefly555 - Firmware - Marlin
Re: Precision Piezo Z-probe Now available. - 6 years ago
Quotetekkydave I would recommend using a multi-turn for VR2 if you can. I did it and it makes tweaking so much easier. I think I used a 20K pot. Good idea, I have some of those.by firefly555 - General
Re: Precision Piezo Z-probe Now available. - 6 years ago
QuoteMoriquendi For VR2 any potentiometer with a value over say 10k will work, it's a potential divider so the exact value doesn't matter. For VR1you could try values between 200k and 1M between PZ+ and PZ- before you solder one to the board. Thanks. Time for me to raid the parts drawer.by firefly555 - General
Re: Precision Piezo Z-probe Now available. - 6 years ago
I have inherited a PP V2 board that no longer adjusts properly. I placed it into my working setup and the LED blinks sporadically during probing (I'm using three piezos as "posts" under the bed). I suspect one or both of the potentiometers are worn out and noise from the frame is causing triggers. I can try to replace the pot(s). However, ordering these pots can take a while for me so maybe one oby firefly555 - General
Re: Precision Piezo Z-probe Now available. - 6 years ago
The BLTouch works quite well when it's been mounted solid and all the offsets have been configured. It isn't great for smaller printers though since the places it can't probe becomes quite significant. Also, not having to constantly clean an oozing hot nozzle during levelling, which I need to with the piezo, is a great bonus. I use different print surfaces all the time so I naturally gravitate tby firefly555 - General
Re: Precision Piezo Z-probe Now available. - 6 years ago
Does it really matter (in terms of sensitivity) which side of the piezo disc gets pushed in? Shouldn't a flex in any direction cause a trigger? I'm finding I need to relocate wires due to their bad placement on some discs. I have room to flip them and then the push would be on the all-metal side instead.by firefly555 - General
Re: DemonDeltaTube - A delta inside an acrylic tube... Build - 6 years ago
I find the usual flex couplers quite annoying. Even with a straight leadscrew and a true spinning stepper, after connecting things up using a coupler, there is a slight wobble. The grub screws tend to push things off centre and depending on the alignment of the grub screws on the two ends of the coupler (some line up, some don't). Even with a bit of shimming, getting a dead centre isn't always guby firefly555 - Delta Machines
Re: Precision Piezo Z-probe Now available. - 6 years ago
I've been trying to move the heat sink above the effector plate to recover some height. I ran into an issue with sensitivity adjustments with the contraption I rigged up. The mechanical movements would cause a trigger, but turning down the sensitivity, nothing would trigger. Hopefully with the "Olampe Balanced Piezo" set up, I can finally get something working.by firefly555 - General
Re: DemonDeltaTube - A delta inside an acrylic tube... Build - 6 years ago
Quoteo_lampe I had good results with flexible couplers between leadscrew and stepper shaft. But I added a steel ball ( 4.5mm ) between them. Now the DOF in Z-direction is eliminated and it can only flex in X&Y. Are you saying that by adding a ball bearing inside the coupler (with no gaps to either end), it would eliminate lateral stretch and compression? Compression would be eliminated but Iby firefly555 - Delta Machines
Re: Delta Segments per Second - 6 years ago
This reminds me of the time when I had really bad stutter problems with Marlin on an 8-bit board. The vase mode I was printing turned into an interesting piece of art that would be difficult to reproduce. In the end, the solutions were to either reduce the segments per second, or just don't print through USB. Printing via SD card was fine so I've been going that route since then. The 8-bit boardby firefly555 - Delta Machines
Re: Motor conventions for Polar printers - 6 years ago
I've been searching for firmware that will handle cylindrical coordinates for my printer. I have a rotating gantry instead of the usual rotating bed and wasn't sure how much work would be needed to accommodate for the difference - I would have a translation of (x,y,z) to (r,θ,z). I will give RepRapFirmware a try.by firefly555 - Polar Machines, SCARA, Robot Arms
Re: Precision Piezo Z-probe Now available. - 6 years ago
QuoteDjDemonD Awesome work by Jardar Nordbo (4Mb give them chance to load): Not sure if it's been brought to attention yet, but the piezo discs are being shown mounted incorrectly (they're upside down) in the animation and would result in the wire getting crushed.by firefly555 - General
Re: TMC2130 stallguard2 as touch probe? - 6 years ago
Quotedc42 Quoteo_lampe I tried stall detection on my compact carrier Delta with 1.7A steppers. At first I couldn't find a setting that homes well and later doesn't spit out tons of stall warnings. I had to modify the homeDelta.g file and add a M915 line in the end to reduce sensitivity and switch filter on. Now it works reliable. The sensitivity window is pretty small: I had a lucky punch with Sby firefly555 - Delta Machines
TMC2130 stallguard2 as touch probe? - 6 years ago
Does anyone know just how much force is required to kick in stallguard2 on the TMC2130's? If the force is something that's "safe" for the nozzle to tap on the bed, why not wire up the steppers to act as a touch-probe? I found an old reference to this but it wasn't really fully answered:by firefly555 - Delta Machines
Re: AnyCubic Kossel Board Replacement - 6 years ago
Quotemaralb since we talk about Clone, I wanted to inform you that the Chinese organization has also cloned Duet WIFI for those who do not have much money It's not a proven clone yet, and not exactly dirt-cheap just yet - give it a couple of months though. Have they cloned a PanelDue yet?by firefly555 - Delta Machines
Re: Effector stowage or parking idea for Delta - 6 years ago
QuoteDjDemonD Please guys it may not be the (over)engineered solution you seek, but a keychain retractor is the answer. Very simple costs £2, works. The way I use it is secured to the wiring loom, water cooling tubing, so it holds the effector up indirectly and keep my cable in a nice loop above the effector but you could attach it directly to the effector if your wiring is another configurationby firefly555 - General
Re: compact carrier for Kossel Deltas - 6 years ago
Just thought there might be a bit of vertical play, but the screw is probably squeezed into teethes on both sides and won't go anywhere. Good idea.by firefly555 - Delta Machines
Re: compact carrier for Kossel Deltas - 6 years ago
QuoteDjDemonD One of the 4 screw holes in the linear rail carriage now sports a 25mm M3 screw, which both sides of my belt are fixed to, with a twist for the top pulleys, so that as DC said the tension is carried by the belt It looks like there're small gaps above and below the screw that's between the belt. Is there any movement there?by firefly555 - Delta Machines
Re: Other Firmware On Smoothieboard - 6 years ago
The implied answer to the original question appears to be a NO. With that, we should then shop for the best firmware/hardware combination for our needs and not expect to be able to jump around different FW's without planning ahead. Having run Repetier, Marlin/Marlin-2.0, and SmoothieWare on the same Delta, I was hoping to give RRF a try. Looks like I'll have to do some extra work to get that inby firefly555 - Firmware - mainstream and related support
Re: compact carrier for Kossel Deltas - 6 years ago
How is the belt tension maintained? Doghouse Delta!by firefly555 - Delta Machines
Re: MKS GEN V1.4 & MKS TFT32 asking for help. - 6 years ago
Quotejinx could be that not all styles are being updated equally The WIN8/Retro style has "M-OFF", and it works fine. Figures it would be the second last one in the list to try. Good to know that not all styles/themes have the same capabilities. Thanks for the pointer.by firefly555 - General
Re: Large scale (12") 3d printer as my first one...please help 
- 6 years ago
Quoteo_lampe QuotePrinting a lot of different materials, including TPU, Polycarbonate, Wood, Ceramics, Nylon, Nylon/carbon... Wood and Ceramics are certainly no option. Except you meant plastics that look like wood or ceramics. Polycarbonate: I've never heard of a PC-filament? Anyone? Nylon: requires full metal hotend. TPU: best results with a direct drive extruder, but short Bowden tube extruby firefly555 - General
Re: MKS GEN V1.4 & MKS TFT32 asking for help. - 6 years ago
Quotejinx Quotefirefly I enabled all seven of the "More" buttons. They all work fine. Then I replaced the command for the first one button (which had "G28 X0") with "M18 X0", which disables steppers. It didn't work - pressing the button just locks the LCD for a bit, then it comes back to being responsive again. The M18 command works through Prontoface though. could it be because its already theby firefly555 - General
Re: MKS GEN V1.4 & MKS TFT32 asking for help. - 6 years ago
Does selecting a different "cfg_machine_type" give a set of slightly different menu items? I have the TFT32 and am running Smoothieware, using the latest (from git repo mentioned above) "Red style/Classic" files. The defaults are flashing fine and talking to Smoothieware fine. I'm trying to enable the option for Motors Off / "m-off", which I've seen in some screen shots for these TFT32's. It wasnby firefly555 - General
Re: Lean/Slant on Flsun Kossel - SOLVED (It was the belts!) - 6 years ago
Has anyone tried reinforcing the back of belts by bonding something like polyester or kevlar line along the entire length of a belt? There's clearance in most cases and would make for a belt that is very stretch-limited.by firefly555 - Delta Machines
Re: how to select the best cooling fan for my delta - 6 years ago
A single blower fan running at 75% speed has been working fine. Initially, at 100%, I was also having issues air pushing the plastic around before it could cool. Why not just use the strong blowers and throttle down to the optimal cooling speed for your set up and call that the "max" ?by firefly555 - Delta Machines
Re: FA-MAS mostly metal delta build - AKA Metal Gear - 6 years ago
Quotedougal1957 you will not be able to get the lengths spot on if you thread them so go for 4mm ID tude and epoxy the screws in after attaching the Rod ends so that you can get them the same length Yup, threading things together will make it impossible to get the all the lengths the same and have the rod ends face the same direction. Just rough up the side of the tube, use a jig, and epoxy everby firefly555 - Delta Machines
Re: Need help identifying a controller board. - 7 years ago
Under Linux, Pronterface works fine. In the kernel log, the board showed up as "CP2102 USB to UART Bridge Controller" so I figure it could be missing the VCP driver on the Mac. I installed the driver from Silicon Labs and the board is now showing up, and Pronterface is working fine. Got the VCP driver from here: Unfortunately, I still can't identify the board, but at least I can talk to it.by firefly555 - Smoothie
Re: Need help identifying a controller board. - 7 years ago
The board shows up fine under Linux. I'm using OSX 10.12 - I'll dig deeper to see if there are any system error messages when I plug in the board.by firefly555 - Smoothie
Need help identifying a controller board. - 7 years ago
I'm trying to locate OSX drivers for this board that comes in the BIQU Magician delta printer. The PCB has "BQ111-A3" on it and the touch screen's PCB has "BQ112-A3" stenciled. The board came pre-mounted so I can't get to the underside without disassembling everything. The controller is marketed as a "BIGTREETECH 32 Bits MainBoard". Based on the GUI, as far as I can tell since there isn't a menuby firefly555 - Smoothie
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