I'll do some testing at 1G when my arms and smart effector arrvies hercek. I'm prolly never gonna set it to 1G for printing tho as it will introduce other problems but I can try to push the limits and get some videos of it.by minim - Delta Machines
Quotedc42 Good magnetic joints work for high speed printing too. My delta using Haydn's mag joints + Duet3D Smart Effector + E3Dv6 hot end will lift more than 1.5kg without disconnecting. The mass of the effector and hot end is about 400g. So I could push it to more than 4G without it disconnecting. I'll try magnetic joints I guess Btw would it be possible to use that stall detection the otherby minim - Delta Machines
Hehe no I like to build and experiment and the last 3 printers i built was cartesian/corexy so I just want to try something new and I enjoy how deltas look during printing. Thanks for the detailed explanation and math. I will need to experiment and learn some more about delta's before I start on something like this tho. I see that there is a a lot of small pitfalls here that I wouldn't have thby minim - Delta Machines
The idea with steel cable sounded pretty awesome. I have a lathe and a cnc mill so machining drums should be doable. This idea has to be checked out As I said cartesian is out of the question. I'm building a delta because I think they look cool while printing. The kossel arrived today so I spent the afternoon assembling it. Came with broken carrier and I trashed the controller and assembled itby minim - Delta Machines
For the corexy? I can try but how is that related to the delta joints? I don't have a assembled delta I just want to figure out what's the best joints/rods I can get for the delta and this was the best discussion I found about regular joints vs magballs. This is a bit off track but what about using ballscrews instead of belts to avoid the belt issue on a delta?by minim - Delta Machines
idkn if the corexy suggestions was in reply to me or because I bumped a old thread but I already got a scratch built core XY with 3030 frame, alu cnc machined parts, linear hiwin rails on all axis and 3x ballscrews + 3x linear rails for true bed leveling. No doubt corexy is fast and a great concept but this time I just want to chase my dream of having a delta and to learn about them. Always likedby minim - Delta Machines
The topic is old but there was a good discussion going on the first page about the pro/cons of Magballs on a delta. I'm leaning towards using ball joints after reading this but I can't find any of the two suggested in my country. Traxxas is easy to find but those are not good if I understood correctly. Any other suggestions?by minim - Delta Machines
Quotepsxsnake I'm interested in all top part coreXY, becouse i'm doing same with mgn12, 3030 extrusion profile Ok I will try to make a post this weekend with a link to thingiverse if I get time. Maybe you get it done before meby minim - CoreXY Machines
The fusion 360 project is really messy since I'm working on converting the parts to more cnc friendly parts. I didn't test the machine either since I've been busy the last months recommissioning an old CNC machine. I could send you the STL files if you are interested in testfitting it. It's all built in 3030 extrusions. Mechanically it's built but I'm missing a deux5 board and it's stopped due toby minim - CoreXY Machines
Not much is happening due to many other projects but I've finalized the design on the Z axis and started mounting it on the machine. The ballscrews and linear rails are mounted and lined up. I designed a little tool for aligning MGN12 rails to 3030 extrusions. I've seen similar designs so the idea isn't mine ^^ I've been battling if I should do a 3 stepper setup with true bed leveling on thby minim - CoreXY Machines
QuoteMechaBits It's Crazy how the 3030 looks like 2020? Weird Scale, how long are the pieces 500? 585mm each so it might be the total size that does it?by minim - CoreXY Machines
And it's alive I've also done adjustments to the Z axis. Hopefully going to assemble the Z axis during the next week. But the CNC machine is also comming so I bet it will be more tempting to play with that lolby minim - CoreXY Machines
Does this single sensor board have the same output circuit as the 3x board? I need one for my other printer but as I only use one input and the other board is not mounting friendly I would like this one if output can be analoge here also.by minim - General
The parts are machined and I will pick it up tomorrow. So exited to try to mount it. I also got a offer I couldn't refuse on this beauty. Maybe next time I can mill the ends myselfby minim - CoreXY Machines
Today the parts went to a school that takes the end milling for me as a school project in a mill. I will get a square frame and the money goes straight to the class account so for a good purpose. Win win Really looking forward to start building this beast now.by minim - CoreXY Machines
No problem! I think I will do a review on it also as this really deserves some attention. There are a minor downside with the clean nozzle but when I probe at 130degrees and clean out the tip its not an issueby minim - General
Just have to post back here after probing lots of times and doing many prints. First layer height is now always the same and I'm not even using baby steps to correct anymore this sensor is just bang on each time. No way back to the IR sensor after trying this! I'm designing my other printer to run with piezo probes also now since this is so stable to use. Great product guys!by minim - General
QuoteChowa Yes, the shielded cabloes appear to work well, don't have a scope to do anything . This is eating into my beer budget. I've replaced the stock motor /gear train with a Tevo Titan clone with a Nema17 stepper and saved over 500g of weight on the gantry. Need to adjust the driver as motor got very hot in a 1hr run. The B W uses one motor to turn 2 lead screws with a belt. Don't have specby minim - General
QuoteChowa Has anyone considered using toothed idler pullies with the same pitch as the drive Belts? It may reduce mechanical noise as the belt teeth would fit in better than using smooth pullies which could cause sub or hypersonic vibrations. The scope pictures are great but the piezo signal is clamped by the 2 input diodes to ca 0.7+ - Vdc by D1 and D2 to the input of the differentiator IC1a.by minim - General
Some photos from today. I tried mounting the frame and it goes fine together but it's way out of alignment as mentioned. Also tried loosing the corners and using brackets aligning them manually. Could MAYBE work if I loosened it even more on the corner cubes but it's hard to keep track of the lengths when "cheating" it together like that. Last run before I gave up it was 1mm out on 590mm lenght.by minim - CoreXY Machines
Yes I kinda knew that and it's the same in my line of work.. Impossible for them to make money on small stuff like this. It was worth a try tho since I could have a look at those machines when I was there. I know this because I bought all that stuff recently when I got my CNC router.. I sold it not to long ago along with tooling and clamping tho so I'm back on scratch. Regret that bigtime now aby minim - CoreXY Machines
Went to the machine shop today to get a price quote for milling of the ends. They qouted me $260 to mill them off to equal lenght. It was a stiff price tag for that work so I'm really considering getting a mill and doing it myself.. This is prolly not my last build and I would love one for machining the other parts like stepper mounts, idler mount, X carriege mount and so on. They stocked a machiby minim - CoreXY Machines
No I tamper with this all the time Next up is bondtech remote extruder I thinkby minim - General
QuoteDjDemonD Looks good wish I had a scope like that If you know what you measure you can use your soundcard and a open source program. Only need to watch not to hit to High voltage level on the input Mounted the new sensor and it's day and night compared to the old one. I had sensitivity set at 0.8Mohm but had to drop it to 0.25Mohm and maybe even more since it was to sensitive. Probes witby minim - General
Not a very scientific test I know, but I've been playing with thes 20 vs 27mm sensor hooked up to the scope at the same time. If I where to guesstimate the 27mm disc looks twice as sensitive as the 20mm disc when it comes to voltage level on changes. It's not very visible if tapping gently on the chair but with some harder taps it's really visible that it goes higher. Added two photos just fromby minim - General
I bought 20 pieces without leads and 10 of the 20mm ones with leads It was easy to solder on and it still works after I did it. Bumps 3volts with a little tap on it. It also seems that the polarity is dependant on the way the sensor is used. If mounted in my Aero carriege the positive voltage is at centre and negative on the outside ring. If I turn it and tap the other direction it's the otherby minim - General
bummer.. They managed to send me 27mm piezo discs without leads.. 20mm ones are with leads tho but can I solder on leads myself? Won't the heat ruin the piezo disc? I can cool it instantly with compressed air or smt if that helps.by minim - General
And still no word from the machine shop i received the missing corner brackets now so will try to drive around tomorrow and see if I can get anyone to do the milling for me. Hope it get solved somehow. If not I will buy a mill. I see they have it in stock in my local cnc shop.by minim - CoreXY Machines
What is the best aproach for gluing in a 27mm piezo disk in the titan aero mount? CA and just two dots at front/rear or all the underside?by minim - General
I've come to the conclusion that it must be something with the epoxy or sensor itself since it stopped beeing sensitive after I worked on the mount. Ordered 20 new sensors for testing. If it's not that I will try with a new board from you. Until then I've set offset to -0.3mm and it's doing the job. Just annoying to not know why it's acting up like that when it worked so fine for many attempts anby minim - General