2020 X-Axis Shortener Kit (short belt tensioner + short motor mount)

thingiverse

Shortener Kit for the AM8 2020 X-Axis ======================================== Replacement parts designed to shorten the overall length of the Anet A8/AM8 2020 X-Axis 2020 for E3D V6/Titan Aero by thaug29. The kit includes: * Shorter belt tensioner (V1 or V2 depending on what you want) * Shorter motor mount The original project had multiple printed parts that made the overall length of the axis too long, so I reworked more compact parts to allow my printer to fit in a 56cm (21") wide enclosure. **Space Savings Compared to the Original Project** * Short belt tensioner V1 saves **30mm** * Short belt tensioner V2 saves **50mm** * Short motor mount saves **25mm** That's up to **75mm save** with these shorter parts, depending on the options you chose. Overall Length of X Axis from End to End: * Original design: **642 mm** * Original design if you cut profile excess: **575 mm** * Short motor mount and tensioner V1: **520 mm** * Short motor mount and tensioner V2: **500 mm** **Cutting the 2020 Profile Shorter** Of course, with my design, you will have to cut the 2020 profile shorter because it won't poke out of the bearing parts anymore. You can use a hacksaw to do this. You want to cut it at **412 mm**, but don't worry if you're a bit shorter. You can always slide the profile from the other end where it is fully inserted into the bearing part with engine mount! **Modifications** Let's get to the mods: Short Belt Tensioner V1 ----------------------- The original project is designed to be used with Smooth Idler Pulley Kit on tensioner and 30 Tooth Timing Pulley. You'll need to print the file `Belt_Tensioner_V1.stl`. You can use this belt tensioner with the link parts from the original project, but you'll need to drill 4mm holes in the locations pointed out with the green arrow on the pictures (on top and on bottom as well). If you didn't print these parts yet or want to replace them, I created STL of both simple bearing and double bearings versions that you'll find in the files. Print the file `Single_Bearing_V1.stl` or the file `Double_Bearing_V1.stl`, depending on which you prefer. Short Belt Tensioner V2 ----------------------- I designed a V2 version of the Short Belt Tensioner that's 20mm shorter than the V1. You'll need to print the file `Belt_Tensioner_V2.stl`, but you can't use it without a specific part that links the 2020 profile to the rods. You'll need to print the file `Single_Bearing_V2.stl` or the file `Double_Bearing_V2.stl`, depending on which you prefer, or grind the one you already have if you're bold! If you're using a 20 tooth pulley (I know it's the case on other versions of the 2020 X-Axis) you won't need to use my specific link parts, but as the pulley is a bit thinner you'll need to use washers so it stays centered. Motor Mount ------------ Just print the file `Single_Bearing_With_Motor_Mount.stl` or the file `Double_Bearing_With_Motor_Mount.stl`, depending on which you prefer. It's basically a combination of the two parts that are used in the original design.