Reddit reviews ARQQ TL Smoother Addon Module for Pattern Elimination Motor Clipping Filter 3D Printer Stepper Motor Drivers (Pack of 3pcs)

This is where I ordered them: https://www.amazon.com/gp/product/B071WG3SZQ

But they seem to be sold by so many other names that you could order anything on Amazon that shares that product image, if you find it cheaper.

Yep! I bought these ones

In my experience this problem is caused by electrical noise in the stepper motors, causing slight, regular vibrations that are transferred to the print and manifest as these odd surface waves. I have the same PowerSpec printer, with the same Microswiss all-metal replacement hotend. The only thing I don't have is the Microswiss extruder lever but I don't believe that is a factor in this situation. No matter how well everything was dialed in, my prints suffered from this problem. The only way to minimize (not eliminate) the problem was to print at 10mm/s which was not an acceptable solution for me.

I solved this issue by installing TL smoother boards in-line with the X, Y, and extruder stepper motors. You will definitely see many opinions on smoother boards here and elsewhere, ranging from "100% fix my issues" to "waste of money, fix the REAL issue", which I think are influenced by different printer models, patience levels, and the many other variables that can affect 3D printing quality. In my case, the TL smoother boards fixed 90% of my issues, the other 10% was fixed by printing and installing the Z-brace mod you see on most of our Wanhao/Monoprice/PowerSpec printers. Coupled with limiting print speeds to 50 mm/s or below, I have had very good results.
Thingiverse link for Z-brace mod for I3 Plus: https://www.thingiverse.com/thing:1653631

I also printed the Dii Cooler in PETG and replaced the stock cooler with one of those 24V "squirrel cage" fans, which provided much better cooling for all sides of my prints. Before that it really only cooled the front of prints, leaving the sides and especially the rear of prints looking pretty bad.
Thingiverse link for Dii Cooler for i3 Plus: https://www.thingiverse.com/thing:1025471

Also, I initially tried installing one of the smoother boards on my Z stepper motor, rather than the extruder but this made Z-axis movements erratic and ruined my test prints. After moving the smoother board to the extruder I have had much success. Some people say smoother boards also reduce stepper motor noise but I can't tell the difference.

Amazon listing for the 3-pack of TL smoother boards I purchased ($11 USD):
https://amazon.com/gp/product/B071WG3SZQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I'll just put them right here. I think these are essential upgrades for the ender 3

[Metal extruder feeder] (https://www.amazon.com/dp/B07TWQFT7J/ref=cm_sw_r_cp_apa_i_gq8SDbCHX88J8)

[TL smoothers] (https://www.amazon.com/dp/B071WG3SZQ/ref=cm_sw_r_cp_apa_i_ms8SDbA5EWY3W)

[PTFE tube and fittings] (https://www.amazon.com/dp/B07PS3NH82/ref=cm_sw_r_cp_apa_i_Ls8SDb794MJ3Q)

Yep - right off of Amazon.

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Stepper Dampers and TL-Smoothers.

Buy, These are the ones that i used. I put them on the extruder, X and Y axis motors. The X and Y i put inside the base of my monoprice maker select plus and the extruder one i put on top near the extruder itself. You just need to connect the cable from the board to it and then the other side to the motor.

Get tl-smoothers, cheap and easy to install. Not sure why Creality doesn’t just drop them in standard.
ARQQ TL Smoother Addon Module for... https://www.amazon.com/dp/B071WG3SZQ?ref=ppx_pop_mob_ap_share

https://www.amazon.com/dp/B071WG3SZQ/ref=cm_sw_r_cp_apa_i_bzDsDb82BHFPJ. This is the one I'm using I coupdnt figure out if it is a 1.1.3 or not. I also pit them on the x,y,and z axis. Not sure if they need to be on all of them

Some other things I'd recommend


TL-Smoothers https://smile.amazon.com/gp/product/B071WG3SZQ/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1
I know you already upgraded the extruder assembly but this duel geared version is nice: https://smile.amazon.com/gp/product/B07SY745CF/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1
PEI Bed surface (has to date been the best upgrade): https://smile.amazon.com/gp/product/B07GSJSDWR/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1
and if you don't have a glass: https://smile.amazon.com/Creality-Ender-Glass-Upgraded-235x235x4mm/dp/B07RD6D2ZQ/ref=sr_1_5?keywords=creality+glass&qid=1571456745&sr=8-5


I'd recommend applying the pei in the smooth side of the glass that way you can flip it over to have the textured side if you want.