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Reprap Part Procurement

Echovoice RepRap - Part Procurement

Part Two

The biggest challenge so far has been ordering all the parts, its crazy how much work it actually was. Also I would like to point out it is quite a bit more expensive than the what the wiki states so have double that amount in funds before proceeding. This is not becuase the reprap wiki is incorrect, I am sure you can get those parts for those prices but its quite unlikly. Also if your like me you might be buying more then one of somthing, becuase you did it wrong or broke somthing, take a look at my Tips and Tricks Page before proceeding. Now because I made so many orders from all over the world, I am going to post a picture of each item as I receive it. I am also going to post a running total for parts as I receive them. So we can see how much this thing has actually cost me. I am also going to post where I got it and how long it took to arrive and how well it was packed.

Below you will see my running totals for money and hours spent on this step, I will also break down each order and post the invoices associated with each purchase.

Total Amount of Money Spent Total Amount of Hours Spent
$1290.29 47.0 hours

Last updated July 7th 2010.


My first package arrived!! This was a large electronics order from Makerbot Industries.
My Order was placed on 05/09/2010 and arrived today 05/12/2010.

Item Sku Qty Subtotal
Opto Endstop v2.1 PCB tv449 6 $5.70
Temperature Sensor v2.0 Kit tv263 1 $5.75
100K Thermistor tv61 1 $5.00
H21LOB tv94 6 $5.70
RepRap Motherboard v1.2 tv439 1 $59.00
Extruder Controller v2.2 MP431 1 $50.00
Blue ABS Plastic 1lb MP663 1 $15.00
Subtotal $146.15
Shipping & Handling $11.55
Tax $0.00
Grand Total $157.70

Here are pictures of everything received:

This is the RepRap motherboard.

This is the RepRap extruder controller.

This is the 1lb of Blue ABS plastic, I thought it would be smart to pick some up at the same time, I really like the color and it should make some good looking Echovoice E's when its time to start printing.

This is the Opto Endstop PCB, unfortunately they were out of fully assembled ones or even just a kit. Not a problem because I have plenty of LED's and resistors that this and the optical switch is all I really need to make this work.

These are the optical switches used to detect end and home positions. I purchased 6 PCBs and 6 optical switches.

This is the temperature sensor kit. Nothing too special a couple resistors, led and a thermistor. I actually dont know why I purchased this kit and I dont recommend you order it. I was going to use it possibly for my arduino only version of the reprap but why I ordered it now I have no idea. So save yourself $6 and dont order this part.

UPDATE: on May 17th I noticed that I never received the 100K thermistor I ordered, I used Makerbot's contact form and they quickly got back to me. They said they would send it out asap. Now becuase I ordered the temperature kit I could use the one it came with but it was very small and looked very delicate. Just order a seperate thermistor and it should connect directly into the extruder board.

UPDATE 2: On May 19th I received a tracking number from them so its in the mail!! Great customer service from Makerbot.

UPDATE 3: On May 21st the package arrived with the thermistor in the box, I really like these guys.

Amount of Money Today Amount of Hours Today
$157.70 0.5 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$157.70 20.5 hours


The next couple purchases arrived today!! Lets find out what I received:

The first package was heavy, it was the 3 stepper motors I won off eBay.

Below you will find the description of the 3 steppers that I copied from the eBay posting.

Qty (3) Reprap Mendel Stepper Motors NEMA17 75 oz/in

These are NEW steppers that meet all specs for Mendel II reprap with 5mm D Shaft 7/8" long. These are the larger motors with extra holding torque to minimize heat and maximize speed. These motors are NEMA 17.

I won the auction at $46.00 with $15 shipping and handling on May 12th. 5 days shipping is not bad at all and they were packed fine, nothing fancy but as long at they work Ill be very satisfied.

NOTICE: The mendel requires an additional stepper motor for the extruder.
I already have one with more than enough torque left over from my Disney Project I worked on earlier this year, Interested in what I did? Go Here:


The other package that arrived today was another ebay purchase I made.

My Reprap Machined Extruder Parts Kit

The heater barrel, thermal barrier and nozzle.

Below you will find the description of the kit that I copied from the eBay posting.

The PEEK thermal barrier has been drilled through to 3.5mm and the nozzle end has been drilled and threaded for the M6x1 brass heater barrel.  The opposing side has a starting taper in order to ease the initial feeding of the plastic filament.  The outside has been grooved in order to assist in the installation of the PEEK in it's holder.  The total length, of the thermal insulator, is 35mm.

The heater barrel is 50mm long and has been machined out of M6x1 threaded brass rod.  The ends have been turned down to 4.5mm in order to allow the barrel to extend, internally, over the ends of the threads.

The nozzle is 14mm long and is made out of 7/16" brass hex rod.  It has been drilled and tapped to M6x1 and the orifice may be drilled to your specification.  Current orifice sizes are 0.30mm, 0.35mm, 0.40mm, 0.50mm, 0.60mm, 0.70mm, 0.80mm, 0.90mm, or 1.00mm.  If you do not specify a size, I will drill it out to the standard size of 0.50mm.  Please note that 0.30mm sizes are considered experimental.

I won the auction at $21.50 with $1.50 shipping and handling on May 14th. 3 days shipping is very good for eBay stuff!!

Amount of Money Today Amount of Hours Today
$84.00 0.5 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$241.70 21 hours


Two more packages arrived today. Lets find out what I received:

The first time I ordered from Makerbot they were sold out of the stepper controllers and I had to wait until they came back in stock.

WARNING: The Makerbot inventory email alert doesn't work at all.

I was reading on the reprap forum somewhere that this was true and just decided to check and bam they were back in stock. So I ordered 3 of them, here are the pictures of what the kits look like and what they contain.

Stepper controller kit, fully assembled and included the ribbon cable, damn I wish I would have known, I ordered some already, along with the ends! O well no harm having extra (cheap) parts.

Item Sku Qty Subtotal
Stepper Driver v2.3 mp647 3 $105.00
Subtotal $105.00
Shipping & Handling $7.55
Tax $0.00
Grand Total $112.55

Makerbot Industries does a really good job of packaging and the shipping time is very good. I placed my order on May 13 and it arrived today the 18th. 5 day turn around is good and they provide tracking numbers which is nice so I don't forget to check the front door and leave stuff out overnight.

ATTENTION: AllElectronics is one of the worst companies I have ever had to deal with. They might have decent prices but STAY AWAY from these idiots.

If you are interested in the JUICY details as to why I no longer recommend these guys please go here: /allelectronics_sucks

The other package that arrived today is from AllElectronics. I placed my order on May 14th. Here is a copy of the invoice.

Item Sku Qty Subtotal
WHITE LED, 5MM LED-115 10 $0.65
Subtotal $30.25
Shipping & Handling $7.00
Tax $0.00
Grand Total $37.25

So I must have been a very tired when I placed this order, I ordered 100 feet of 10 wire ribbon cable from these guys, never mind the fact that the Makerbot kit already included some! I have a feeling that the makerbot cables are too short and I will use this instead, but I can guarantee that this 100 feet will last me quite some time.

I noticed that a couple times we use these in the project, I bought 4 different sizes to play with, I doubt we will use all 4 but we will see.

These are the 10 pin connectors for the ribbon cable, I bought 10 of these for when I screw up and have to remake a cable.

White LED's, I love when electronics light up white or blue, I am going to use these to replace any of the LED's of the same size I encounter, you can skip this step if you are following along and building your own. However I would leave the cost in there because I have boxes of resistors I will use later that you might have to purchase.

Amount of Money Today Amount of Hours Today
$149.80 0.5 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$391.50 21.5 hours


Nothing came in the mail today but I am going to go over the other parts you will need to order or purchase locally in order to finish the project. Unfortunately I will probably miss something and have to run off to the store several times during the project, so please read the entire project details before proceeding to make sure you have everything need to complete it.

This is the USB to TTL converter I will use to program the motherboard and extruder as well as use in the finished project to communicate the Gcode directly to the reprap. Sparkfun has this part for $14.95 here: http://www.sparkfun.com/commerce/product_info.php?products_id=718

While your on sparkfun go ahead and order several pin headers and if you are like me and makerbot didn't have assembled opto switches you will need as many ethernet jacks as you will have opto switches, 6 in my case. Also on sparkfun go ahead and order the same number of the 3 different resistors you need to complete the opto switches. This should run you about $35 with shipping total from sparkfun.

The next purchase was locally at Frys Electronics, ill get around to posting pictures later because I forgot to take them at the time of writing this.

Again I am not going to modify the makerbot electronics to make this as simple as possible so you will need some ethernet cable. I got 50' of yellow CAT6 for $10.44, your also going to need to pickup some ends to crimp so get those at the same time. It cost me $4.99 for a pack of 20 of them. Next I picked up a small 230watt computer power supply. It was only $19.99 and should work great, it has a nice quite fan to keep it cool and includes all the necessary plugs to power the motherboard and stepper drivers. You also need to pick up some molex adapters for the stepper motor connections. They only had ones with 6 pins and we only need 4, a quick cut with my wire cutters and I was able to cleanly chop 2 pin holes off. If you don't have any you should pick up some shrink wrap for your cables. If you don't have any solder for the opto pcbs get that. The last thing I picked up was a bunch of wire 18 gauge wire to wire everything up. I also have a feeling I will have to extend some of the power cables from the power supply in order to place the PSU in a nice clean location.

Frys Electronics total came to with tax $49.20.

Amount of Money Today Amount of Hours Today
$84.20 1 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$475.70 22.5 hours


Two more packages came today but they are quite small so I don't think its anything major.

This is the Kapton tape we need to use for the extruder nozzle. I also ordered a couple kapton sheets to play with for bed material. I have read it works great for heated beds and I eventually want to make one! I bought 100' of tape and 3 sheets, it cost $12.14 and only took 3 days to arrive.

This is the Nichrome wire I also purchased from eBay. Its 40 feet of 30ga bare Nichrome wire. It has a resistance of 6.63 ohm/ft so I really only need about a foot but I am sure I will screw up and need more, 40 tries should do it. I am going the cheaper route initially and not getting insulated wire. Its WAYYY more expensive and I feel confident I can use the kapton tape to prevent a short. It cost $6.00 and arrived in 2 days.

Amount of Money Today Amount of Hours Today
$18.14 0.5 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$493.84 23.0 hours


Good news and bad news. Today is a big day, my hardware kits have arrived, which is really good because I have been waiting a while for them. Bad news, the hardware kit box was damaged. Here are the pictures of how the wonderful delivery person left it at my front door.

This is the once straight tube that contains all my hardware. The biggest problem with this is the rods are inside the tube and need to stay as straight as possible.

Lucky for me the rods were on both sides of the bend, they are all still very straight and should work fine. The person selling the hardware kits has been very cool about the whole process. The first time he sent me the kits they were so damaged in shipping UPS sent back the pieces and gave him a refund, which really delayed my delivery.

I purchased the two kits on May 9th for $190.00 each plus $20 shipping. I think I forgot to mention that I bought two, I am planning on building a second reprap right after I get the first one working and then play with modifications and such. Anyway's I purchased two kits and thanks to the wonderful job of UPS it took 2 weeks to receive the kits.

These kits can be found on the reprap forum and I highly recommend purchasing them. They are very complete and will help reduce the amount of shopping required to obtain all the parts necessary to build this thing. Here is a picture of a kit spread across the floor.

Here is a list of parts the kit includes:

 Bolts, Nuts, Washers
54 - M3 Cap Screw 20mm 
5 - M3 Cap Screw 25mm 
20 - M3 Nut 
38 - M3 Nylok 
105 - M3 Washer 
28 - M4 Nut 
130 - M4 Nylok 
460 - M4 Washer 
40 - M4 Cap Screw 16mm 
2 - M4 Cap Screw 20mm 
20 - M5 mudguard washer 
105 - M8 Nut 
105 - M8 Washer 
120 - M4 Cap Screw x 40mm 


2 - 5/T5/990 
1 - 5/T5/1380 


M8 steel zinc plated  threaded rod 
- 2 x 440mm 
- 6 x 370mm 
- 4 x 294mm 
- 2 x 355mm 
- 2 x 418mm 
- 2 x 330mm 

M8 smooth rod 
- 2 x 495mm 
- 2 x 406mm 
- 2 x 330mm 


2 - 8mm x 22mm x 7mm 
48 - 4mm x 13mm x 5mm

Amount of Money Today Amount of Hours Today
$210.00 1.5 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$703.84 24.5 hours


So today is the big day that the plastic parts arrived. They cost me a lot of money and actually came from the UK. They were made by nophead00, who is very active in the reprap community and runs a very nice blog with lots of detail and photos, it makes for a really good read. Anyway here is what I received:

Below you will find the description of the plastics kit that I copied from the eBay posting.

A complete set of Mendel extruded parts including Adrian's geared NEMA17 extruder. The small ones were printed with 0.375mm natural ABS on HydraRaptor. The larger parts were printed by HydraRaptor / Mendel using 0.4375 / 0.5mm white ABS.

All the parts were printed on a heated bed and most are completely flat. A few are a little warped but all guaranteed fit for purpose. All the holes are reamed to the correct size.

The pulleys are my own design with grub screws and captive nut which are included.

I would like to give him 5 stars for the excellent quality of the parts and the speedy shipping.

Amount of Money Today Amount of Hours Today
$473.58 0.5 hours

Total Amount of Money Spent Thus Far Total Amount of Hours Spent Thus Far
$1177.42 25 hours

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