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Reviewed in the United States on March 27, 2025
Review of ”TOSEASTARS Nema 23 57mm Stepper Motor 1.2Nm/120Ncm 170oz.in Step Motor 1.8 Stepper Angle...":(Please refer to my reviewing guidelines at the bottom of the page).This is an excellent stepper motor when paired with a good quality driver board like the DM542 or 556 drivers. It appears to be very accurate in full-step and micro-step modes. As is most common, it is a 1.8 degree step angle with 200 total full steps per rev. It has every bit of the 1.2Nm torque specified and runs reasonably cool when put though its paces. You will want to print out the drawings on the ad page because it will be all that you receive regarding the dimensions and the winding wire codes. The spindle is the standard 8mm diameter so you can use one of the many GT2/3 or HTD belt cogs that have a 8mm bore.I've done a bit of market research on Amazon for this specific type of product and find that at the current $19 this is priced very competitively for the market. I'm assigning this stepper 5 stars because it is a very nice stepper motor at a great price.My responsibility as an Amazon Vine Reviewer:Considering the Amazon rules/regulations for being a Vine Member It is obvious that it is very important to Amazon that the person doing the review has indeed inspected, tested, used the product as well as being aware of the competitive situation of the market segment. This is so it can be fairly compared and reviewed whether good, bad, average, or anywhere in all of the grey area between. One thing that I wish were better defined by Amazon is exactly what each star should represent from 1 to 5 so that every Vine member would use the same guide in that regard. So, to let you know the guide that I use, I include it as follows:I always start off considering that average is 3 stars, and an average rating to me is: The product was correctly represented in the ad. The manufacturing quality is as expected. The product performed as intended. The product operating/user guide if needed is helpful. The product is priced accordingly.Then after inspection, measuring, testing, using, wearing, or whatever is required I add or subtract from the average as follows: Subject to additional stars: Additional product features not expected that are useful. Manufacturing quality/performance above what was stated or expected. Included guides and/or useful information that is beyond the norm. Product pricing highly competitive for a superior product. Subject to fewer stars: The product was misrepresented in the ad. Manufacturing quality/performance below what was stated or expected. No useful guide or understandable user information when required. Product pricing is on the high side considering quality, features, or the market.all the best,dr
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