Replacement parts - Video from Thomas Sanladerer  

Re: Replacement parts - Video from Thomas Sanladerer

Here is the TLDR link
https://toms3d.org/2017/02/23/building-cheapest-possible-prusa-i3-mk2/

At this point in time, the linear bearings are not on the list.
-LM8UU are mentioned, would these suffice??
- https://www.amazon.com/Easy-RepRap-Linear-Bearings-Printer/dp/B00ED150S4

I think this will be a good resource. I've already bought a backup thermister that will not work in the MK2.

Also, remember to support Tom by using his MatterHackers link:
https://www.matterhackers.com/?rcode=TSAN86

Here are Tom's ebay, amazon, and other affiliate links: https://toms3d.org/support-me/
-I bought a spare fan, PTFE tubing, and a thermister from MatterHackers but did not know about his link.
-Tom should really list this at the end of his videos.

Re: Replacement parts - Video from Thomas Sanladerer

😀 hehe... i'm looking forward for the next episodes where i hope to get some new tips (because until now there are no new aspects for me and i've got all my parts together, some of them all the way from china ).

💡 would be interesting to know how he gets the actual firmware compiled for the ramps board... and how he gets the inductive probe and the meshbed levelling running. further more, with his approach, the digital potentiometer is missing at the ramps... so it'll be a little challenge to get "silent mode" & "high-power mode" up running.
i'm curious for which extruder design he'll go. i guess he'll go with something like the unified prusa i3 extruder for the mk8 drive gear he has choosen. that's actually my choice.

➡ and for the frame design thomas mentioned, i'll go for david's rebelix frame approach.... no matter what kind of ply-wood design he'll suggest 😕

but anyway, if thomas abdicates meshbed leveling and high-power or silent mode selection, then it'll be no i3 mk2 "clone" at all.

Re: Replacement parts - Video from Thomas Sanladerer

I have a rebelix sitting right in front of me waiting on a couple of parts from china to get it finished....
No matter what material tom chooses for his frame you can order a precut aluminum frame off ebay or your favorite shopping site.
I picked the aluminum extrusion for a couple of reason's but mostly to vary the size of the printer. if you want it taller then order longer z axis threaded rod, smooth rod and the aluminum extrusion....

Bed mesh leveling has been around for a long time even my medalmax 1.5 had it and is common place even on cheap Chinese printers. But bed squaring is pretty new....

If I get everything but power saving mode I'm happy...

wouldn't be hard to get everything but the cost will be a littler higher than Tom is going for. glue magnets on pcb board heater, buy a Rambo mini, then you can have it all....

That video is clickbait sure..... but Tom as been around for a long time and does know what he's talking about...
Bob

Re: Replacement parts - Video from Thomas Sanladerer

I wondered if you did not need the automatic skew repair, could a BL touch be used on a clone.

Re: Replacement parts - Video from Thomas Sanladerer

I don't think he's going for a MK2 clone, but instead for the cheapest possible i3, which won't be cheaper that the 150€ clones already on the market. Tom knows this.

This will an insteresting series to watch because he already posted another video talking about the real cost of a budget kit:
Budget 3D printers might cost you more overall: How much YOU should spend!

I already have one of those clones he mentions and the quality has nothing to do with with the original MK2. Additionaly, the time I have spent calibrating the printer and printing upgrades would throw many prospective buyers off.

It will be interesting to see how he will handle the technical limitations. He seems very adamant on not purchasing more parts to prevent feature creep. I want to see that board heating up the heatbed to 100ºC without a mosfet board extension.

And even if he manages to get everything working on the first try (without having to replace faulty components), it will be good to see how the limitations in the build translate to defects on the printed parts, ie, z-wooble, ribbing, slips, etc..

I like Tom and if it was not for his famous MK2 video I would not have ordered an Original MK2 🙂

Re: Replacement parts - Video from Thomas Sanladerer

I suspect one of the reason he's going for the cheapest clone possible is that he doesn't want to compete with the original MK2...

However, IMHO that's a mistake, the whole point of being open source is that you can do things like that, and everybody wins in the end; a big part of the reason to buy from Prusa directly is the fact that the money will be reinvested into making the design better (ie. look at all the Slic3r improvements).

I would much prefer to see links and explanations about good / tested replacement parts for the Original MK2 itself, perhaps in both direction (cheapest parts that still work well enough, and more expensive parts that offer some tangible improvement).

Re: Replacement parts - Video from Thomas Sanladerer

This guy got the 9 point mesh leveling working on a non MK2 using a different probe: