Would love to see your analysis of stepper motor resonances someday. The resonant frequency of certain motors can land right in the middle of critical speeds on on motors/machine rigs. Especially when fed the max current to push them to their max torque spec.
Hello Phil! I use Reflectix, it's available at home improvement stores like Lowes or Home Depot in large rolls that aren't too expensive. The easy way to apply it is make a taped up "box" of it that sits outside your existing panels--not the prettiest, but really gets the job done. You should easily be able to hit 65C with that, especially if you have a cover over your front door. The prettier solution would be to do something like the "Doom" V2 design or something like the "EZ Bake Trident" I've been working on--that extends the vertical extrusions to 4040/2040 to allow extra space for the reflectix insulation and a second panel.
@@eddietheengineer Thank you, I'll try that! ps. would love a follow up video about the tool head board and how to integrate it with a standard MCU that controls the steppers etc. Subbed!
@@eddietheengineer Interesting. For most large prints I'd say that's more than enough. I wonder if 247 Printing uses 48v on his NEMA 14s that did the 3:30 benchy?
Not OP, but I prefer the trident for high ambient temp printing (assuming no enclosure heater) and the 2.4 for everything else. My 350mm 2.4 takes forever for its insulated enclosure to heat up significantly since the bed is at the relatively colder bottom of the enclosure.
@@eddietheengineer oh. nice! Are you using active chamber heating or it's just good insulatin giving you those temps? I might make an ultem compatible tool changer one day :D but realistically I won't go above 80c tbh, that's enough for polycarbonate i think tho!
@@ameliabuns4058 I use Reflectix! You can find it at home improvement stores like Home Depot or Lowes in the US. It's pretty easy to work with and is effective for these "medium temperature" applications.
That’s a great question, I don’t remember off hand what this test was at. I did run some tests on a similar setup yesterday and was around 1300mm/s at 1A and 48V
@@eddietheengineer Sounds about right for those motors. For higher torque motors like the E3D Super Whoppers I'm using, you would need a touch more current. But these motors will not overheat so it's not an issue. I think I'm going to keep it at 750 mm/s so I can keep the microsteps at 128. Had to drop from 256 to 128 for 550 mm/s or higher
The electronics housed upstairs is a brilliant idea.
Would love to see your analysis of stepper motor resonances someday. The resonant frequency of certain motors can land right in the middle of critical speeds on on motors/machine rigs. Especially when fed the max current to push them to their max torque spec.
That would be really cool! Do a speed sweep and analyze the frequency response
I called it perfectly!!!!
Looks like that machine stays toasty!
You call that messy!
You should see my fire hazard that I call my printer 😂😂😂
What’s this I smell. A video about to go viral??.
You also want grow some plants in your 3D printer?
What are you using as panels/insulation? I have a 350 chamber maxes out at 45C, would love to get up to 60.
Hello Phil! I use Reflectix, it's available at home improvement stores like Lowes or Home Depot in large rolls that aren't too expensive. The easy way to apply it is make a taped up "box" of it that sits outside your existing panels--not the prettiest, but really gets the job done. You should easily be able to hit 65C with that, especially if you have a cover over your front door.
The prettier solution would be to do something like the "Doom" V2 design or something like the "EZ Bake Trident" I've been working on--that extends the vertical extrusions to 4040/2040 to allow extra space for the reflectix insulation and a second panel.
@@eddietheengineer Thank you, I'll try that! ps. would love a follow up video about the tool head board and how to integrate it with a standard MCU that controls the steppers etc. Subbed!
What sorts of accels were you running on this test? Excited to try some of this out.
Likely 10k! Not too high, but fast enough to hit max speed most of the time
@@eddietheengineer Interesting. For most large prints I'd say that's more than enough. I wonder if 247 Printing uses 48v on his NEMA 14s that did the 3:30 benchy?
3...2...1... and these steppers are sold out )
Perfect test script
On your opinion, what is better, 2.4 or trident?
I love both, but definitely have a bias towards the Trident due to having worked on V1.8.
Not OP, but I prefer the trident for high ambient temp printing (assuming no enclosure heater) and the 2.4 for everything else. My 350mm 2.4 takes forever for its insulated enclosure to heat up significantly since the bed is at the relatively colder bottom of the enclosure.
@@reidn5185 and why 2.4 for everything else? I want to build one of these but I struggle to figure out which one should I build.
are these fans under the bed for circulating air
Yes! It draws the hot air from under the bed and recirculates it through the chamber, increasing chamber temp by ~8C or so.
Is this a high temp printer? How hot does it get?
This is an insulated printer, so maybe the correct term is "medium temp". A thermistor above the toolhead generally reaches ~70C during prints!
@@eddietheengineer oh. nice!
Are you using active chamber heating or it's just good insulatin giving you those temps?
I might make an ultem compatible tool changer one day :D but realistically I won't go above 80c tbh, that's enough for polycarbonate i think tho!
@@ameliabuns4058 just insulation and the bed heater! The goal is to be efficient and safe without adding another heater that could fail
@@eddietheengineer damn! I love that.
I wanna do that to my own now :)
what insulation did you use?
@@ameliabuns4058 I use Reflectix! You can find it at home improvement stores like Home Depot or Lowes in the US. It's pretty easy to work with and is effective for these "medium temperature" applications.
How much current you are planning to run these motors at 48V?
Probably pretty low, somewhere around 0.7-0.8A
@@eddietheengineer Thanks. So you will be running it at 48V or 60V? New BTT Octopus pro has 60V support with TMC5160 PRO drivers.
@@dinesh4331 I’ll be using a 48V PSU!
@@eddietheengineer 0.8A gets me to 750mm/s with some buffer at 128 microsteps and 48V using E3D Super Whoppers
I am curious of how close does this match your data from the motor model you made. Have you compared it?
The model predicted 850mm/s! So pretty close--I may try and test a few more points in between 800 and 850 to see where it failed.
@@eddietheengineer That is pretty neat.
turn down the current and you can go faster
What run_current?
That’s a great question, I don’t remember off hand what this test was at. I did run some tests on a similar setup yesterday and was around 1300mm/s at 1A and 48V
@@eddietheengineer Sounds about right for those motors. For higher torque motors like the E3D Super Whoppers I'm using, you would need a touch more current. But these motors will not overheat so it's not an issue. I think I'm going to keep it at 750 mm/s so I can keep the microsteps at 128. Had to drop from 256 to 128 for 550 mm/s or higher