Thanks for your reply. Yes, the wheels indicated in the blog post you linked are the ones that I show in my attached photo. I am trying to find a place that is selling those wheels that you refer to as Rostock Mini wheels. QuoteOhmarinus BTW, the Rostock Mini wheels are especially machined for the misumi parts to maximize surface contact area; Johnby JohnOCFII - Delta Machines
Greetings, It is nearly winter, and time for some upgrade projects! I'm considering re-working the carriages on my Think3DPrint3D Kossel Mini. I'm looking for new/additional wheels, but while my current wheels are quite narrow, with angled sides (like the first attachment) most of what I find is the OpenBuilds wheels, which look wider, and seem to require the V-Slot, as shown in this link: Wby JohnOCFII - Delta Machines
Quoteruggb that is the problem with changes. Yeah, I know. Quoteruggbif u are touching your board and it triggers, I guess the circuit is working, assuming your touch isn't hitting the circuits.. That is my thought as well, but posting here in case it is possible there is still some board issue that I'm missing. Quoteruggb What happens when you touch the nozzle? If it doesn't work or takesby JohnOCFII - General
Greetings. I've used my Precision Piezo Orion successfully for 6 months. I've recently changed many parts on my RailCore Y-carriage, and as I attempt to re-commission the printer, The Orion is not triggering on Homing Z. It works fine just touching the PCB, but I have to hit the POWER OFF switch when I attempt to home for real as the bed continues to climb and not trigger. I have a short viby JohnOCFII - General
Just to close the loop on this, after searching and trying a few different designs, I finally settled on creating a modified version of Haydn Huntley's carriages, and paired them up with a simple effector I designed that carries forward the Hotend connection points of the standard T3P3 effector. I use this in conjunction with a slightly modified version of the T3P3 E3D-V6 mount and fan shroud, wby JohnOCFII - Delta Machines
Quotenumber40fanIf you can get me some specifics, I'll see what I can do. Your Delta setup looks really good. I did find some design's by Haydn, so I'm going to take a look at these to see if they'd make sense for me. If I run in to issues, I might ping you again. He's got both the SCAD and STL out there too.by JohnOCFII - Delta Machines
Quotenumber40fan Do you live in the states? If so, I could probably make you some out of plexiglass cut on a laser machine. Yes, I live in Minnesota. That's an interesting idea!by JohnOCFII - Delta Machines
Quoteo_lampe What about the Smart PCB effector? The carrier-plates use the 20x20mm pattern, so it should work with wheeled carriers too? That was my original plan, but the designers pointed out to me that it it quite a bit larger than the effector on the Kossel Mini, and that would cause me to lose build area. Rod spacing is 10mm wider, so the rough calculation would be a loss of 20mm of diametby JohnOCFII - Delta Machines
Greetings, I'm looking for suggestions for carriages and an effector that will work well together with Haydn Huntley's magnetic arms. I've got a Think3DPrint3D v3 Kossel Mini. Mainly, it is like this: except with Duet Wifi and Titan Extruder. I've got Haydn Huntley's 215mm magnetic arms with Delrin cups, along with the magnetic balls. There are many on Thingiverse, but I don't see a clearby JohnOCFII - Delta Machines
QuoteAdrianR52 Just replaced my lumpy 3x10x4 bearings and used a 3x8x4 bearing between. Seems to work well - the 3x8x4 just fits snugly in the centre of the delrin ring. You can tighten the outer nyloc nut really firmly, and the bearings run smoothly and freely. Seems to be very little play on the carriage now. Adrian Thanks for the update! My printer is complete, and on initial testing, I didby JohnOCFII - Delta Machines
QuoteAdrianR52 I felt that the bearings were running roughly on my kossel xl. The two bearings are 4mm apart, so I filled this gap with a 3x3x7 bearing (which I had to hand - a 4mm wide bearing would probably be better) with a 0.5mm washer on each side. You can then tighten the nylon nut quite firmly, and the bearings run smoothly. A couple still have flat spots so I will replace them. Seems to bby JohnOCFII - Delta Machines
Quoteo_lampe A flat spot on a bearing ball will not get better over time. It's pretty easy to replace the bearings in the Delrin rollers, so I'd try this first. Do my symptoms sound like a flat spot on a bearing? I have the same issue on all three carriages, so it would surprise me if I had equally bad bearings all around. My understanding is this type of bearing (623ZZ) doesn't need lubricatiby JohnOCFII - Delta Machines
QuoteAce67aod Rollers worked fine when I built mine you probably need to adjust the tension on the nuts as you already said you have done. Thanks! QuoteAce67aodI will echo Tomas, I have recently upgraded to rails in place of rollers and I have seen improvements. I also upgraded to magnetic arms and aluminum belt carriage adapter that can be tensioned with a screw driver which helps get the beltby JohnOCFII - Delta Machines
Thanks for your thoughts, tomasf. I do expect to do some upgrades in the future, but I'd like to start with the stock configuration first, as much as I can. I'm starting to think I have the tightened the 3 nyloc nuts on the rollers too tightly. I'd guess the rollers are not perfectly aligned with the extrusion gap. I loosened the three nuts on one carriage, and that problem went away (only toby JohnOCFII - Delta Machines
Greetings All, I'm building the Think3DPrint3D Kossel Mini R3. This is my third printer kit, second delta style, but first with Delrin V-rollers on extrusion. I'm concerned that the movement up and down the extrusion isn't smooth. To build the carriage adapters, I followed the instructions to "tighten the nyloc nut until you just begin to sense a slight resistance to rotation, or roughness,by JohnOCFII - Delta Machines