Got the filament in... Now the hotend temperature stays at 30.x... I suppose it never got heated before... How to check what when wrong?

I got 1.. if u want.. 1.75 Black..

Lelong? I always thought there were lots of dishonest sellers and scammers at Lelong.

you can try PLA. they are easier to print and i assure you its less headache.

how are you unable to print ABS? I;ve just started my first roll of ABS and as far as that goes my experience is print on Kapton tape at 110C and 240C on the hotend. the 110C bed temp helps adhesion, and if you still fail, turning on brim can help really well against lifting on the edges.

240C on the hotend is so i get better bonding between layers of ABS. I tried 220 and 230, but layer strength isnt so good.

RM90 is about okay, Blomker sells for 90 as well not including shipping, i think its 10 bucks for shipping to semenanjung. I suggest Blomker because he is trusted and his materials are okay. Customer support also top notch and he's local. (helps alot when we have local suppliers so i try my best to support him!)

@altan , the reduction in stepper temp is probably on the reduce heat from the mosfet. When mounted on the printer, the Mosfets are below the stepper so convection probably bring the heat up to the stepper drivers. since the Mosfets were at 100C-ish before, that is alot of heat. (btw how do you reply to multiple people in a single post?)

Btw anyone know any reason as to why my hotend jams mid print? Both PLA and ABS. tried increasing Temp, didnt work. The motor didnt seem to skip and there wasnt any filament grinding. I let off pressure from the idler bearing and let go again and it continued printing like nothing happened (except now im missing a layer or two). Happens on long prints only..

No wonder the steppers are heating up from the result of the previous MOSFETs...

For replying to multiple quote, just click on the quote button (bottom right and can select more than one) of each post then click on add reply button at the end of the page.

Its really strange to see the extruder motor not skipping and not grinding the filament at the same time. Usually if it grinds, its means the stepper drivers are still doing its job and its likely caused by the hotend or the filament. As for skipping, this happens when the stepper driver are overheated or the pot adjustment is too low. Since it is long term, most probable answer for skipping is the stepper drivers are overheating.

Another thing I suspect for those symptoms is the extruder motor cables could have come loose during prints (on the motor end). I had a faulty extruder motor that sort of fidgets (not turn properly and doesn't cause grinding) early or halfway through the print and it was caused by the repetitive loosening of the cable on the motor side. I push and press the cable end into the stepper and it magically works and this means one of the wire in one of the four is probably damaged. I think since we normally don't tie down the motor cable end to the motor/platform and we leave it hanging free, the movement in the Y or X axis causes the cable to wear internally and causes the wires to disconnect from the stepper.

Anyway long story short, try to change your stepper motor for the extruder and also cable tie the cable to the motor. Make sure to leave some slack on the cable motor end.
My advice for you is to get an all-metal hot end and not use the PEEK barrel J-Heads which are not actually spec for ABS printing. Some all-metal have a teflon tubing inside  and it will still work for ABS but you might have to buy the teflon sleeve replacements.

I suspect the J-Head PEEK barrel doesn't form a proper thermal barrier between the hotend and the filament input end and causes the whole ABS filament to soften and jam up mid barrel. Another solution to try is to add a small fan pointing towards the barrel so it will assist in dissipating the heat and forms a good heat gradient profile.

Wow. Looks cool! How do I start this hobby?

Does anyone offer service for assembling a Prusa i3 kit plus calibration? I may be able to get my hands on one but I just don't have the time to put it together.

Thanks for the recommendation Prosperer 

give it a whirl. Cost me nothing cause i already had it

Really nice print there!  Is that a scanned model or hand modeled?

Your heated bed must have been set really high to minimize the warping. Does not appear to have used brim which I have to use in all my ABS print to prevent warping. 

Your 3D printer is enclosed in a box or was it printed in the open?

That uncle must be a pro at modeling or he got someone to design it for him.

Lucky you can manage 110C unlike mine which maxes out to 90C in a really hot and unventilated room. 

I would have also thought of using cardboard as cover and heat insulator...