親子觀星會

AstcamPan  
==

Pegasus Astro New Portable Harmonic Mount
==
QHY Harmonic drive  
==
 EM-31 谐波赤道仪
==
五藤
==
ZWO
=
黑洞 BH
==
韓國 Harmonic drive   hobym 跟 RainbowAstro

==
RainbowAstro RST

==
hobym 跟 rainbow
==
https://www.hobym.net/

Arc7 적도의를 테스트 하실 분을 모집합니다.

Harmonic drive


==
http://weestaroptics.com/News/422

(http://weestaroptics.com/files/attach/images/112/422/9ca7d13bd86d0b4e2fde007017cb0854.jpg)



http://weestaroptics.com/News/624

http://astrophoto.co.kr/index.php?mid=astrophoto&document_srl=239270&listStyle=viewer

(http://astrophoto.co.kr/files/attach/images/1993/270/239/4697779c2bfd5712f2c93a3530e5914f.jpg)

(http://astrophoto.co.kr/files/attach/images/1993/270/239/5f5516d22293794e739e93567bc8d43b.jpg)

取用美國和日系成功模組的綜合體設計. 感覺像韓國車的產品...日歐成功模組的混血. 在日本這幾年有業者(開發和販賣專門店)和韓國業者合作,只是尚未打開國內市場(老貓看起來並不容易!)

這家以前就有做赤道儀嗎?

一般赤道儀聽到不外日本 ,  歐洲 
還有現在很多中國廠商 .

韓國開發赤道儀已經有十多年了(當年自業餘工作室自製到有組織公司開發)...這家是去年和日本K-ASTEC有合作開發才知道有這家...但我比較注意的是另一家 南十字 CRUX 的產品...這也是和日本開發業者合作的韓國本土開發公司.他已經打入美國市場,算是比較成熟的新觀念產品. 和樓上的產品一樣,遇到成本高,單價高的問題.現在努力攻歐美中型赤道儀市場.(這個政策是對的!不要靠日本業者銷售日本市場,會死得粉慘!)

原來還有其他家

http://hkastroforum.net/viewtopic.php?t=33465


http://www.hobym.net/crux170hd
(https://static.wixstatic.com/media/b7b1c8_b40c19ce57e44a1886625d3fed36e0de~mv2.jpg/v1/fill/w_305,h_119,al_c,lg_1,q_80/b7b1c8_b40c19ce57e44a1886625d3fed36e0de~mv2.jpg)



http://k-astec.cocolog-nifty.com/main/2017/03/crux-170320hd-b.html

(http://k-astec.cocolog-nifty.com/main/images/2017/03/01/b17_03_01.jpg)

http://blog.naver.com/PostView.nhn?blogId=starlit22&logNo=220992124771

rainbowastro

http://www.rainbowastro.com/?ckattempt=1


http://hkastroforum.net/viewtopic.php?t=33458
自重3.4kg, 承重15kg,
無須平衡錘
走佬一流
使用Harmonic Drive

我用這家的 G41, 也不錯!

韓國7,8年前最早是一家ASTRODREAM TEC (電子系統和韓國大學合作)和日本天文ハウスTOMITAC 這家老天文手工公司合作.但最近這家韓國也不見了.改組變成RAIANBOW ASTRO... 有了一種技術出現,若應用在天文器材上,韓國創新產業粉快就收集到資金.但是天文是個非常專業且小眾的小眾市場,如高階光學技術已經是日本歐美所把持,所以粉多天文創新公司多走赤道儀的領域.韓國在天文產業是個新手! 如南十字,Rainbow astro這類專走中高階赤道儀公司 能維持多久就要再觀察了.

 韓國同好自己diy planetary+harmonic drive reducer加上1：16的microsteping motor所做出來的攝星儀
  http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=26770.new#new

https://www.cloudynights.com/topic/628874-best-small-travel-mount-maybe-rst-150h-share-it/
討論  
 hobym 跟 rainbow  附屬關係 


https://www.youtube.com/watch?v=OpeqL47XM44

Mount RST-150H, Alt-azimuth mode goto test

 Harmonic Drive  
http://familystar.org.tw/index.php?option=com_smf&Itemid=39&topic=26770.0

https://www.tolgaastro.com/rainbow-astro-rst-150h-mount.html

TED  有買 

http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=32374.new#new
https://www.facebook.com/photo.php?fbid=3089511027729589&set=a.396690670344985&type=3&theater

(https://scontent.ftpe8-3.fna.fbcdn.net/v/t1.0-9/59888058_3089511031062922_5640936130179235840_n.jpg?_nc_cat=107&_nc_eui2=AeFLXMm1GKI2BTNrgLDRLD4nlBOaM226wqKh24HjRw1vBvCqMOSDF5_8qcS6IQCX6dHCqfuPQH6ycN1o4j_C0d3lkUcVAbibWXIf5M8rhhMR-A&_nc_ht=scontent.ftpe8-3.fna&oh=8b68858455ee12727cd8b8e747dc839f&oe=5D9F930F)

PAYLOAD  13.5公斤 不用重錘 
(https://scontent.ftpe8-1.fna.fbcdn.net/v/t1.0-9/59842592_2825878784093792_1187366936162336768_n.jpg?_nc_cat=105&_nc_eui2=AeFXuySYY6b9HuiiTfhf7vIH_O9aD0yCcTzh1LwfbSVvJ5UcZHhQDbIVmS1oJH_plCQ1pnBw98yrbAZvAp-8bZa2cUFGu7qcANNFB_6JbpcOKw&_nc_ht=scontent.ftpe8-1.fna&oh=49f10824d4582b85d82dbc8d01dda6c6&oe=5D63D882)
https://www.facebook.com/ted.wang.961/videos/pcb.3090776814269677/3090770894270269/?type=3&theater

https://www.facebook.com/ted.wang.961/videos/pcb.3090776814269677/3090770984270260/?type=3&theater

https://www.cloudynights.com/topic/666852-rainbowastro-rst-135-review-the-ideal-imaging-mount/?hl=+rst&fbclid=IwAR2CEy4hWkckEgQHLvT3xXy49eXRc9xL1_LmbdKPsurn6EDJaGYk4w554eQ#8208135=&page=2

RainbowAstro RST-135 Review -

(https://www.cloudynights.com/uploads/monthly_07_2019/post-243927-0-16900600-1562003481.jpg)

https://www.facebook.com/photo.php?fbid=3248725511808139&set=pcb.3248737958473561&type=3&theater  

RainbowAstro RST
可切換變身，EQ、AZ 雙模式  

=>  http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=32739.0

TED  開箱
http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=32374.new#new


TED  兄心得分享 ..

小鋼炮 RST-135
http://s00639.blogspot.com/2019/05/rst-135.html

CRUX 200HDA
http://s00639.blogspot.com/2019/10/crux-200hda.html


2018 STAR PARTY
http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=30928.15

Kuan Yu Ja‎    Crux 140 Traveler
http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=33648.0

RST比traveller載重多一點，價錢也貴一點

同好問題

https://www.facebook.com/photo/?fbid=10158739807183402&set=pcb.10158739811498402

除黑洞外 zwo 也出am5
Pegasus astro 也出諧波

五藤 

http://gototelesco.co.jp/mxhd.html?fbclid=IwAR0Q-fGyXl-aiBj-ISmuqUrKaR9EUUZ4KTdYCT60IINnb_c7voNRLtApKdE

(http://gototelesco.co.jp/product_image/mxhd_image01.jpg)

EM31谐波赤道仪  https://bbs.imufu.cn/thread-809581-1-1.html

https://www.facebook.com/photo.php?fbid=5035279079817189&set=p.5035279079817189&type=3

https://www.cnnews.today/showArticle?main_id=62fcd6e2d3432d46a7b859c44686726e&language=cht

EM-31秉承讓“天文攝影更輕松”的設計理念，定位於“輕 便 穩”：3.4kg自重，不帶重錘載重10kg；一體化殼體很像rst-135


(https://www.cnnews.today/getImagesData?type=1&version=11&src=/mmbiz_jpg/H4HaS80W0lFiaqGJDn1ibiczZMvZgF6RqW78mbiaOn2oWpuGhA1Re4MmmB9UpDOPLu5aSNVXHc52qMqj7Wtv83jhVw/640?wx_fmt=jpeg)

qhy  也會出


https://www.facebook.com/photo/?fbid=5034668939878203&set=pcb.4771388816251244

https://www.facebook.com/photo.php?fbid=1263977060791301&set=p.1263977060791301&type=3


Pegasus Astro New Portable Harmonic Mount


(https://scontent.ftpe7-4.fna.fbcdn.net/v/t39.30808-6/271189482_1263977057457968_4954448745585395647_n.jpg?_nc_cat=105&ccb=1-5&_nc_sid=dbeb18&_nc_ohc=m6BOegkm9DUAX-K9FHh&_nc_ht=scontent.ftpe7-4.fna&oh=00_AT8c2_sv4yD6g5X_QhIU1w3QKnMkD39Fdb2NukZos8LR_A&oe=61E39289)

AstcamPan  諧波赤道儀了  
https://www.facebook.com/photo.php?fbid=5034751976536566&set=p.5034751976536566&type=3

(https://scontent.ftpe7-4.fna.fbcdn.net/v/t39.30808-6/271481198_5034751969869900_5974725193026081945_n.jpg?_nc_cat=107&ccb=1-5&_nc_sid=dbeb18&_nc_ohc=nOs6HVmpDEgAX_f8nXL&_nc_ht=scontent.ftpe7-4.fna&oh=00_AT_CTwfwhvggfPrzYYIw6bz16sfIXdI7Cq0c6fpKyQnFRw&oe=61E2A4F2)

=> 2023/10  倒了
  https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=38481.new#new

 HEM 27EC
https://www.facebook.com/photo/?fbid=5391035410982488&set=pcb.5391035450982484 


(https://scontent.ftpe8-1.fna.fbcdn.net/v/t39.30808-6/299858108_5391038674315495_1700234417962035792_n.jpg?_nc_cat=105&ccb=1-7&_nc_sid=8bfeb9&_nc_ohc=R0cRqjFCKNwAX80-dLq&_nc_ht=scontent.ftpe8-1.fna&oh=00_AT89_rwaAWcDStOPhWIdgC_ykaT54-NtYAjGgUwpTHVPZw&oe=63098AA1)

小熊諧波赤道 
https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=36955.0

New HEM44 harmonic drive mounts from iOptron 

https://www.facebook.com/photo/?fbid=8257671264306304&set=pcb.8257688104304620
(https://scontent.ftpe8-4.fna.fbcdn.net/v/t39.30808-6/301790276_8257688397637924_2784421908091896024_n.jpg?stp=cp1_dst-jpg&_nc_cat=104&ccb=1-7&_nc_sid=8bfeb9&_nc_ohc=TXMQW4bfEnAAX-mUXYy&_nc_ht=scontent.ftpe8-4.fna&oh=00_AT8jRI9dq2LuirYBkri9zgD7LxUZG5LdFRRYNshQqS7_aQ&oe=63170B7F)
FB VIDEO

https://www.facebook.com/100001905366175/videos/pcb.8257688104304620/613225810517776

 3.4公斤把18公斤撐起來

https://www.facebook.com/photo.php?fbid=10159967002124648&set=p.10159967002124648&type=3

(https://scontent.ftpe8-1.fna.fbcdn.net/v/t39.30808-6/302291300_10159967002114648_4329132047532230870_n.jpg?stp=cp1_dst-jpg&_nc_cat=109&ccb=1-7&_nc_sid=dbeb18&_nc_ohc=Pdc7ldR8Z9oAX8O9Udv&_nc_ht=scontent.ftpe8-1.fna&oh=00_AT8ExLz3Bl8H_ocNhtrLxSW_9x4mBKCS03agnwlX9XvDFg&oe=6315BC3A)

skywatcher  也出Harmonic drive   wave 100i , 150i

Wave 100i GoTo 諧波赤道儀
-EQ和AZ模式
-重量為 9.5 磅（4.3 公斤）
-不含選購配重的有效負載容量為 22 磅 (10 公斤)
-33 磅 (15 公斤) 有效負載容量，配備選購配重
-雙 D/V 混合式鞍座
-包含副鞍座
-緯度範圍從 0° 到 90°
-紅色 LED 用於緯度刻度和氣泡水平儀
-Wi-Fi和藍牙
-RA斷電制動功能
-RA和DEC原點功能
-需要 12V 2A 電源 (不包括)
-不包括碳纖三腳架、增高節和配重套件
-不包括光學鏡筒
https://www.youtube.com/watch?v=Iz2si05JHLA
https://www.youtube.com/watch?v=pZw_mEt5QJ4
https://www.youtube.com/watch?v=MDOUx9mn-OA

skywatcher  Wave 150i Strainwave Mount

https://www.youtube.com/watch?v=N4yaYqpFIAA

Chimera - Backlash-free Harmonic Drive Telescope Mount

35 kg Payload*
- 10 kg Mount head weight
- Full aerospace aluminium construction
- Backlash-free harmonic drive
- 7.5° per second slew rate
- 0.02" resolution
- Absolute encoders, both axes
- Guiding not required**
- Fine balancing not required
- Losmandy/Vixen saddle with no-mark clamping
- Internal mount wiring
- Through-mount cable conduit
- Soft and hard overtravel limits
- Tool-free operation
- Fine polar alignment system
- 15° to 75° latitude range
- 90° Alt-Az mode
- WiFi, Ethernet and USB connectivity
- Dimmable red work light
- GPS
- Removable magnetic bracket for digital polar scopes
- Adapter system to fit most tripods

https://www.siderealtrading.com.au/telescope-mounts/harmonic-drives-the-new-kid-on-the-block/


Bye-bye backlash!

The advantage of this design for astrophotography is that there is always a part of the flexible spline in contact with the circular spline. Because of this, backlash is effectively eliminated.
Other advantages

Apart from no backlash, mounts powered by harmonic drives have other advantages.

The shape of the gears means that the motor effectively uses a series of wedges to drive the load. This means the motor has a very high level of torque. This means that the mounts can have a high carrying capacity for their weight. Typically, conventional wormgear mounts can accurately carry between about 1.5 to 2.5 times their own weight. Harmonic drives can carry a lot more: around 3 to 4 times their own weight. So, for a set amount of gear, the mount can be significantly lighter and more portable.

The high torque also means that if your gear is under a certain amount of weight, you won’t need a counterweight. The harmonic drive can hold it up and move it around with ease. Of course, working without a counterweight can mean your telescope can be worrying distance from the top of the tripod, so make sure the tripod is stable.
Any disadvantages?

The harmonic drive does not eliminate periodic error. Because every tooth in the splines might be a slightly different shape, the periodic errors seen in the drive’s behaviour can be very complex with short periods. For this reason, harmonic mounts work best with autoguiding.

Most autoguiding software products, including PHD, have guiding algorithms that can assess, then compensate for, periodic error displayed by the mount. This is the best way of handling the complex periodic error that harmonic drives produce. With adequate management, periodic error fades into the background, and your mount guides beautifully.

(https://www.siderealtrading.com.au/wp-content/uploads/2022/08/HarmonicDriveAni.gif)

Best Harmonic Drive Mounts
https://www.youtube.com/watch?app=desktop&v=IpmZszGEVeQ

https://astroforumspace.com/harmonic-drive-mounts-table/

巴納德
Hx35