OK, so you've read the Getting Started section on the OpenAstroTracker page and know what version of things you want to build and use. Right? If not, go there now, we'll wait.
Note: it may be beneficial to review the Add-ons page while determining what parts to order, as you may need extra parts and it's easier to order in bulk to get everything at once.
OAT Hardware Kits are now available at the store!
Prior to ordering any components, review What features and add-ons should I go with? page to determine if you really need them.
|
Type |
Size |
Quantity |
Comments |
Store Links | Aliexpress | Germany | USA | Belgium/ Netherlands |
If you can read Chinese and found a forwarding service |
|---|---|---|---|---|---|---|---|---|---|
| allen key screws DIN912 / ISO 4762 |
M3 x 12mm |
60 |
| |
McMaster / Amazon | Distrelec | Taobao | |||
|
M4 x 12mm |
40 |
| |
" | McMaster / Amazon | Distrelec | " | |||
| Nuts DIN 934 / ISO 4032 |
M3 |
10 |
| |
McMaster / Amazon | Distrelec | Taobao | |||
|
M4 |
4 |
only if using 28BYJ-48 Steppers |
| |
" | McMaster | " | |||
| T Nuts |
M4 |
32 |
| |
20-M4 50pcs |
* Very expensive at Pegnitz Schrauben |
Amazon | 123-3D | Taobao | |
| Heated Inserts (Optional) |
M3x4.6x6 |
60 |
You'll need a soldering iron |
| |
M3x4.6x6 | Amazon | Taobao | ||
| Ball Bearings |
6001 |
4 |
| |
6001-2RS | Kugellager-express.de | McMaster / Amazon | Distrelec | Taobao | |
|
6801 |
1 |
| |
6801-2RS | Kugellager-express.de | McMaster / Amazon | Kugellager-express.de | Taobao | ||
| Belt | GT2 6mm, Pitch: 2mm | 2 Meters |
| |
High Quality Belt | ** | ** | Hobby-electronica | Taobao | |
| Pulley | GT2, d=5mm, 16T | 2 |
| |
High Quality Pulley | ** | ** | Hobby-electronica | Taobao | |
| 2020 Aluminum Extrusion | 300mm, 20x20, 6mm Slots | 3 |
| |
Black | Silver | Schwarz | Silber | Amazon | 123-3D | Taobao (Ask the seller to cut) | |
| 200mm, 20x20, 6mm Slots | 1 |
| |
Black | Silver | Schwarz | Silber | Amazon | 123-3D | " | ||
| Quick Release Clamp and Plate |
| |
Clamp & Plate | Amazon | Taobao |
*usually available on your local Amazon/Ebay/Hardware Store
**available locally, but Aliexpress Links have highest quality
|
Type |
Quantity |
Comments |
Store Links | Aliexpress | Germany | USA | If you can read Chinese and found a forwarding service |
|---|---|---|---|---|---|---|---|
| 16x2 LCD shield with 6 buttons | 1 |
| |
Link * | Taobao | |||
| male-to-female jumper cables for Arduino | multiple |
| |
* | * | Taobao | ||
| bubble level (round, 65mm diameter) | 1 |
| |
Link | Aliexpress EU Warehouse | Aliexpress US Warehouse |
*usually available on your local Amazon/Ebay/Hardware Store
See this Page for a explanation on different boards
|
Type |
Quantity |
Comments |
Store Links | Aliexpress/Global | Germany | Belgium/ Netherlands |
USA | If you can read Chinese and found a forwarding service |
|---|---|---|---|---|---|---|---|---|
| Higher Performance (Recommended) Option: | ||||||||
| MKS Gen L v2.X | 1 | Easiest wiring, most reliable |
| |
V2.1 | Tinytronics | Taobao | ||
| NEMA17 0.9° for RA/DEC axis | 2 | 2A current rating recommended, if power availability is not an issue (i.e. not using batteries) | Any of these, or similar ones(stepper online) | Hobby-electronica | Amazon | Taobao | ||
| TMC2209 Driver | 2 | Recommended Brands: Bigtreetech > MKS > Watterot. Watterot and MKS require soldering. Avoid Eryone |
| |
TMC2209 | Tinytronics | Taobao(MKS) | ||
| Budget Option: | ||||||||
| NOTE: Typically you can find the RAMPS+Mega+5x Drivers as a single purchase on Aliexpress to reduce cost. | ||||||||
| RAMPS | 1 |
| |
Link | Tinytronics | ||||
| Arduino Mega Clone | 1 |
| |
Link | Link | Hobby-electronica | |||
| 28BYJ-48 steppers | 2 | These steppers must be modified to be bi-polar in order to be used. |
| |
Link | Hobby-electronica | |||
| Generic Pololu-style Driver | 2 |
A4988, DRV8825, etc. These drivers should only be used with modded 28BYJ steppers, since they do not have the same microstep resolution as TMC2209 drivers to be suitable for NEMA steppers. |
Link | Hobby-electronica | ||||
| Alternative Boards: | ||||||||
| ESP32 | 1 | only partly supported * |
| |
Hobby-electronica | ||||
* the ESP32 technically works, but at the current time no active dev is using this board, so support can not be guaranteed and bug have to be expected.
After selecting a board type, review the appropriate wiki page to confirm which optional addons are supported by that board.
|
Type |
Quantity |
Comments |
Store Links | Aliexpress | Germany | USA | If you can read Chinese and found a forwarding service |
|---|---|---|---|---|---|---|---|
| MKS/RAMPS needs 12V power. You might need a booster if you use a 5V powerbank. | 1 | USB booster cable example | Taobao | ||||
| 5.1mm DC Jack, if you go with a USB power cable | 1 | Link | |||||
| Neo6m GPS module | 1 | So you don't have to check and enter HA time from Stellarium |
| |
Link | Taobao | ||
| MPU6050 | 1 |
Replaces the bubble level. Shows the base level on the Arduino LCD (If using the MKS Gen L v2.1, this option is mutually exclusive with the motorized focuser) |
| |
Link | Taobao | ||
| M14 x50mm Hex head screw (can be printed) | https://www.thingiverse.com/thing:4199778 |
| |
|||||
| USB-C PD | Taobao |
The Hardware for the OpenAstroGuider is also available at the OpenAstroTech Shop! I know, its slightly more expensive than the china option, but I cannot compete with tax-free sales from china. The shipping will be faster though :)
|
Type |
Quantity |
Comments |
Store Links | Aliexpress | Germany | USA | If you can read Chinese and found a forwarding service |
|---|---|---|---|---|---|---|---|
| IMX290 Sensor | 1 |
| |
Link | Taobao (Ask the seller for no lens option) | |||
| Achromatic Doublet Lens | 1 | d=50mm, FL=183mm |
| |
Link | AstroMedia | Astromedia also has international shops, scroll down to the bottom of their page | Taobao |
| M3x12mm screws and Nuts | 4 | You should have some leftover |