Below are the topics that teach you how to make these ancient Chinese weapons on your own:

1. Making the Chu-ko-Nu (Zhuge Nu) - the famous machine-gun crossbow
Initiator: Liang Jieming
Location: http://www.chinahistoryforum.com/index.php?showtopic=3777


2. Making the "Whirlwind" Catapult - Chinese Traction Catapult
Initiator: Liang Jieming
Location: http://www.chinahistoryforum.com/index.php?showtopic=4315


3. Making the triple-bow Siege Crossbow - Song Dynasty 12th Century AD
Initiator: Liang Jieming
Location: http://www.chinahistoryforum.com/index.php?showtopic=4583


4. Making the "Crouching Tiger" Catapult - adapted Song HCW Catapult version
Initiator: Liang Jieming
Location: http://www.chinahistoryforum.com/index.php?showtopic=5146


5. Making the "Sijiao Pao 四脚炮" (4 footed Catapult)
Initiator: Liang Jieming
Location: http://www.chinahistoryforum.com/index.php?showtopic=7447

6. Making 8 "Crouching Tiger" Catapults - as table gifts at Jieming's wedding dinner
Initiator: Liang Jieming
Location: http://www.chinahistoryforum.com/index.php...=14702&st=0

Which one are you going to build?

The whirlwind catapult looks cool.. unfortunately, I don't have the time to build it due to my busy work schedule.

Current project is the HuDunPao (Crouching Tiger Catapult). I've just updated the tread with latest pictures today.

Aren't you going to need metallic finishings for that???

Nope. The HuDunPao so far as I can determine, is wholly made out of timber/bamboo.

This is my current list of Models, including the ones I'm planning to construct later. I'll add or subtract from this list as I find other interesting models to build.

Medieval Workshop
"Model Reconstructions"

1. Ballista ca. 50 B.C.
Roman siege crossbow
- completed 8th April 2005

2. 虎蹲砲 (Crouching Tiger) Catapult A.D. 1273
Song dynasty catapult during the Mongol siege of Xiangyang
- completed 6th July 2005

3. Double Bow Crossbow A.D. 1186
Khmer elephant-mounted siege crossbow
- researching...

4. Hinged-Counterweight Trebuchet A.D. 1347
French catapult in the siege of La Roque during the Hundred Year War
- completed 20th September 2001

5. 餓鶻車 "Hungry Falcon" Assault Cart ca. A.D. 228
Shu (Han) assault cart during the siege of Chencang by ZhugeLiang
- researching...

6. 火車 (Hwacha) Rocket Launcher A.D. 1451
Korean rocket launcher tested for King Munjong
- completed 22nd January 2006

7. Magadhan Mahaashillakantaka ca. 478 B.C.
Magadhan catapult in the war against the republican Lichchhavis
- researching...

8. Onager" Mangonel ca. A.D. 50
Roman catapult
- completed 19th April 2005

9. 三弓床子弩 (San Gong Chuang Zi Nu) 3-Bow Arcuballista A.D. 1016
Formation of Song dynasty Siege Crossbow Special Regiment
- completed 4th June 2005

10. 四脚炮 (Sijiao Pao) 4 footed Catapult A.D. 1127
Jurchen siege of Song fortified town De An
- completed 14th December 2005

11. Springald A.D. 1315
English javelin thrower during the siege of Carlisle by Robert the Bruce
- completed 18th August 2005

12. 旋風炮 (Xuan Feng Pao) "Whirlwind" Traction Catapult A.D. 668
Tang dynasty catapult during the siege of Pyongyang
- completed 18th May 2005

13. 云梯車 (Yun Ti Che) "Cloud Ladder" ca. 300 B.C.
Chinese Warring States period assault ladder
- researching...

14. 诸葛弩 (Zhuge Nu) Machinegun Repeating Crossbow ca. 200 B.C.
Chinese Warring States Period Repeating crossbow
- completed 10th May 2005

GZ, could you add the current Sijiao Pao into the list. I've started on its construction. Thanks!

alright.. just added the Sijiao Pao to the list.