get it printed locally altan can help he not willing to I can do it also 
wow that a lot of support material , normally for those kind part I don't use support at all seem it printed fine on my printer, but I'm printing PLA not ABS

feiming, mind sharing where you bought the smooth rods from?

You mean your hotend or extruder gear or extruder motor worn out?
Can't wait to see the results! 
3mm filament
Advantages: more material available per length which leads to slower extrusion rate means less power for stepper motor.
Disadvantage: not Bowden tube compatible due to stiffer filament. Also, may have to make your axis steppers work more just to bend a stiffer filament around. Heat uniformity during extrusion is very poor.

1.75mm filament
Advantage: better heating uniformity, and can be extruded using Bowden tube. Easier to bend too. Impurities are easily visible from the thin filament.
Disadvantage: less material per length means more work for extruder motor, extruder motor will hit a speed limit when printing too fast.

I personally never used 3mm filaments before but still, I go for 1.75 mm because its more readily available in 1 kg spool than 3mm.

@feiming, Since you are selling M8 rods, I may want to buy off all of them once I get back to PJ this mid month.

yeah finding the PTFE tubing might be a epic search and Christmas is near everything from china will slow like hell as usual as they start on holiday mood, I usually stop buying stuff during this period of time every year, I'm bless to have 2 (almost 3) printer having 1 in maintenance mode will not affect me much

EDIT:

I think I can get away from search PFTE sleave and buying this instead

http://www.ebay.com/itm/M6x26-Stainless-St...=item3a9599a32a

  I can still reuse the heating block and the nozzle, but I will order few extra nozzle just incase

well worst come to worst I can just cut a bit off my kossel bowden tube but not sure it will fit into the metal throat, I will need ID2 as using 1.75mm filament here and RM45/meter is expensive I can get on ebay for RM25/meter if I don't mind the wait

and 3dprinter.my selling them too for RM30/meter a bit cheaper than your source

http://3dprinter.my/abante/extruder-and-ho...ube-id2-x-od3mm

You might have to measure the PTFE tubing in the hotend because a lot of times they come in different ID and OD sizes. As an real example, I just measured the PTFE tubing for the china J-head hotend and its OD is 6.3 mm and ID is 2 mm while another hotend the JGR Alu-hotend has a PTFE OD of 4 mm and ID of 2 mm which matches with the tubing used in Bowden drives.

Nice find and speaking about buying Teflon tubings, I bought 50 meters of OD/ID 4/2mm teflon tube from a Singapore supplier for about SGD 5 per meter (about RM 13 per meter). Planning to sell it along with a Bowden upgrade kit for reprap printers when I finalized my Bowden drive design, its the one in the youtube video.

I could sell the tube without the kit but I think the delivery for you guys is going to be very costly.

Yup, it comes in a reel too but that was a year ago when I bought it. At that time, I was unable to find any supplier willing to sell small quantities, so I am left with that option.

Nice suggestion with the pos express, will try that some time.

Also, I am getting 15 meters of GT2 belting from China and if anyone want some you can combine with the Bowden tubing. The belting is as pricy as the Teflon tubing. 

Nice, good find but have you contacted them regarding the pricing and if they are willing to sell in small amounts?

A lot of times, these suppliers don't entertain small quantities and simply ignore or overcharge the item just to get rid of small buyers.

Yup, it comes in a reel too but that was a year ago when I bought it. At that time, I was unable to find any supplier willing to sell small quantities, so I am left with that option.

Nice suggestion with the pos express, will try that some time.

Also, I am getting 15 meters of GT2 belting from China and if anyone want some you can combine with the Bowden tubing. The belting is as pricy as the Teflon tubing. 

I make 0 income from reprap as most of the time I print them because I like to see the printer printing lol, I can spend most of time in front of my printer and watch it print this thing never stop to amaze me . but occasionally I do help printing stuff for my friend with reasonable fee just to cover maybe a few extra spool of PLA

side note, order some new heat break for my mendel would take a while to get to me, hopefully it don't get stuck in Christmas backlog, haven't really try to dismantle the hotend yet been lazy these day well that also maybe due to I still have 2 working printer in hand

@altan

I planning to make my own hotend at the moment , nothing fancy just buy those cheap heat break from ebay and get few alu block for heater, I get my friend to mill me a heatshink or re-use what ever I have in my hand,

I'm not a fan of PEEK jhead, going full metal all the way , but yes having spare in hand really help when the time you need it

I would do the same just to cover my filament cost if I didn't have any plans to work on any projects. That's why I have to charge for the printing time so I can use the money to purchase parts for my projects and keep my service running for the long run.

You should consider stocking up on some hotends in case anyone one of them decided to just give up. Luckily I have a few of those China J-heads in hand and one of the heads actually melted and fell off from the PEEK insulation. Its hilarious but still, what a waste.
As you can see from my tradelist, you can actually make a lot of money out of 3D printing, just have to find the right group to sell to. 

Although business is slow due to almost little demand, but it will pick up in no time. Besides, in Singapore their printing service demand is forcefully generated by the institutions especially from students projects. Their rates is way much higher than what I am charging in Malaysia, and it in SGD by the way. 

Also, why is everyone so eager to build their own 3D printer when the service is available? 

before you start buying make sure you can mount it on your printer x carriage, if we're me I just buy the hotend and print the extruder myself in your case ask someone to print one for you, are you going for direct drive or bowden? my delta using airstrip per bowden setup blomker direct drive bowden also nice as it used less part

Nice prints  I have been trying to find filament color that's as red as your prints or are my eyes playing tricks on me.
You could still buy it and if it does not fit, then you can get someone to design and print the adapter for the X carriage. 

I wouldn't recommend Bowden drive for beginners just yet because its much more complicated than it seems and you are limited to stiff filaments only. Direct drive are still the best as the hotend temp does not need to be very high to melt and extrude the filament. Also, you can use flexible filaments when you are more comfortable and familiar with 3D printing.
You can also just purchase the same J-Head china clone from me for RM 150, comes with NTC 100k thermistor, 40 W heater cartridge, has a nozzle size of 0.3 mm, and a good amount of kapton tape to hold down the wiring and insulate the heater block. I would recommend another hotend called the JollyGrimReaper (JGR) All-metal Alu hotend with 0.4 mm nozzle. Its the best hotend I have used so far but it is costly at a price of RM 230 with the same heater cartridge and thermistor spec as above.

I can print the Wade extruder parts since I have printed one set for @izzudinhafiz 3D printer before. Only thing I can't provide is the stepper motor and extruder gear which I don't have excess stock for sale.

feiming have you considered an MK8 type extruder like this one
http://www.aliexpress.com/item/12-24V-Fan-...1851542508.html ?