@leadinglights My question was rhetorical.by MKSA - General
Decades ago, I saw that coming ! And that is the visible part. Chemicals, heavy metals, habitat destruction, overpopulation etc... There was a time when "economists" were using the amount of garbage produced per capita as a sign of "modernism" ! I wanted to strangle them but didn't.by MKSA - green talk
What happens when you tighten the belt to specs ????? Better mount these dampers when there is no radial load.by MKSA - General
Quotesvs072477 Hi, you wrote that you wanted to experiment with ESP 32. Is anything working? What controller board uses this chip ?by MKSA - Firmware - experimental, borrowed, and future
QuoteKennTech Hi, thank you for replying. Quoteetfrench Why do you think that one will work better than the 84 oz-in? If both are run at 1.5 amps, which will have more holding torque? Which has better phase resistance and inductance? It's not that it's better I all ready ordered 3 motors two were going on the z-axis. Plus when I built the Mendel90 I built it with the small motors I had from thby MKSA - General
Just look in this forum, all the great projects with CHEAP in the description. None of them completed. Note, it could be made but you would need access to expensive machinery, know how to use them and get quality parts (excess inventory, preventive maintenance, second hand etc...) for a few bucks or beers.by MKSA - CoreXY Machines
Time to move to a NEMA14, more torque for the same weightby MKSA - Stepper Motors, Servo Motors, DC Motors
QuoteKennTech Hi Dc42, Well my power supply is 12 volts and the DRV8825 driver boards can go to 2.5 amps. So I guess I'll look for motors that are up to 2 amps and around 2 to 4 volts. But I'll have a time trying to find them not to many chooses online. Thank you, Kenn. Gee, you are making a mountain out of a molehill. They are easy to find as they are currently the most common ones (Aliexpby MKSA - General
Considering all the problems you are having with this machine, I was expecting that you would be the one loosing nuts ! How about letting it self destroy itself ?by MKSA - Printing
QuoteKennTech .... 42BYGHW818..... Just measure the coils resistance. If it is around 4 ohm, it is OK.by MKSA - General
Quoteetfrench The DRV8825 doesn't know anything about the voltage (voltage limit is probably related to the trace sizes). ...... WRONG !by MKSA - General
Did you try ? Result ?by MKSA - General
The "greens" to save the planet want us to be packed in cardboard boxes about that sizes for our last voyage Go figure !by MKSA - General
Quotedc42 Don't go for a 12V 0.4A stepper, it is a very bad match for the constant current drivers used in repraps. Look for a motor which needs between 2 and 4 volts and has a rated current around 1.3A. 26Ncm torque is enough for an extruder with 3:1 gearing, but as @etfrench says, not for a direct drive extruder. True, this is a bit too weak but the NEMA 17 40mm long 3.4V 1.5A with 45 N.cm wby MKSA - General
Quoteetfrench That may not have enough torque for a direct drive extruder. I'm using this one which has around 175 N-cm. That is way overkill (unless you want to cold extrude 3mm filament ) and in fact so heavy that you will need bigger motors to move the gantry if you want to achieve decent speed. Besides the hobbed gear will be the limiting factor..by MKSA - General
Quotefloesi Quotedc42 Quotefloesi 1. (Heat resistant) Proximity sensor + True bed leveling (with 3 steppers+leadscrews) It is supported by DuetWifi, but does this actually bring that much of an advantage? Is stepper synchronization a big factor? Cost is not that big of a factor in my case. 2. (Heat resistant) Proximity sensor + Z compensation (1 stepper, 3 leadscrews) Let’s say I print a cube: Wby MKSA - CoreXY Machines
Why make things simple when they can be made complicated ? Just install these f... switches with superglue, rubber bands, scotch tape .....if it is temporary !by MKSA - General
Simple to do; so why don't you do it and show ? Don't forget to run PID ! PS: Is this just to bring attention to the site: BTW, you cut yourself from the world by not being metric, not a very good startby MKSA - General New Machines Topics
QuoteRomanTech I'm still new and I'm not sure where can I find the Vref? Is it stated at the motor specs or the driver? Please remove the Tech in your pseudo.by MKSA - General
QuoteStlLooking QuoteDust what ever you feed into it you get on the bed, hotends and fans pins directly. (just like a ramps) Thanks again. I was getting excited there, until I read "fans." How well will the cheap 12v fans last with 14v? I guess I will just try and if I burn fans out they are cheap to replace. I have not opened up the PS that came with the delta, but the 24v one has the adjusby MKSA - General
QuoteStlLooking QuoteDust What does this mean? ... snip they will heat up the same ... Can I adjust the stock Anycubic-supplied 12v/20A PS up to 14v then? I accept full responsibility for any magic smoke escaping as a result of anything and everything I do. I always push to 14.5V as there is NO HARM but benefits ! Besides, the 12V regulator on the board will really "regulate" and provide a gby MKSA - General
Quoteklcjr89 Quotemartin1454 im affraid that the goal is a bit ambitious - $30K is a lot( It's the goal required to enter production. Did you think the Nimble Kickstarter was just as ambitious too? Quality costs.. But is there a market for quality ??? If you look here all the 3D printer "new" designs where low cost is a key point, one wonder ? OK, almost none complete, yet no expensive partsby MKSA - General
QuoteErnest1122 QuoteMKSA For extra strength I anneal PETG parts with a heatgun. I think it doesn't just relieve stress but increase the layer bond (mainly of the "skin"). Layer bond is the main weakness of printed parts. i found this oven with 25cm^3 chamber, up to 300c and cost about 60usd (w/o shipping). maybe you can have a try. In lieu of the kitchen oven, I prefer to use a heatgun wiby MKSA - CoreXY Machines
QuoteErnest1122 .... Annealing (another thermal cycle to release internal stress of material) will get some more strength of the print ... For extra strength I anneal PETG parts with a heatgun. I think it doesn't just relieve stress but increase the layer bond (mainly of the "skin"). Layer bond is the main weakness of printed parts.by MKSA - CoreXY Machines
Quoteklcjr89 Quotesungod3k So I looked at magnetic plates which seem to be nice and I just saw a kickstarter for a PEI coated plate, but just looking at the fact that build tak charges upwards of 100$ for a decently sized plate, makes me not want to buy it. I am the creator of that Kickstarter and our prices include the shipping costs, even for international buyers (which is expensive). I thinkby MKSA - General
What kind of filament is it ? Brand ?by MKSA - Extruded Aluminum Frames
I use PEI sheet from Banggood. Not expensive at all. Al bed warping has been already discussed here many times. Fact is, a good Al bed can be made, it isn't rocket science neither very expensive. Glass on a warped bed is an other source of problem. Anyway, try frosted glass and let us know.by MKSA - General
In most cases PETG can be used instead of ABS and doesn't have these problems plus no bad smell. Without a heated chamber, I only could make small parts in ABSby MKSA - Printing