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shotty

almost 7 years

exceptional work... a LOT of work, I mean !!! my next project. bye ;-Dan

Ilya Zavadskiy

almost 8 years

Hey!!! Please, please, please!!!!!! 2 days I found information about your tracker in it project. Can you sare link me about 3D model tracker??? PLEASE!!!))) My English is bad, sorry) ilyazavadskiy98@gmail.com

LETSOC

almost 10 years

Hi, downloaded your files but I am a bit confused if I need to print any of the parts files twice/ or more times, can you please tell me which files need to be printed more time Ps: I am sending the files to be printed at a 3rd party company, cheers

atl_timelapse

almost 10 years

I used an existing bolt I had on hand. If it's not threaded to the ball head, it will fall out. That can be fixed with a design modification to the printed part or a retaining "u" clip similar to what is used on the mini legs to keep the 1/4 - 20 held in place when not in use. Depending on the head you use, you can use something like this:<a target="_blank" rel="nofollow" href="http://www.amazon.com/SmallRig-D-ring-Screw-Quick-Release/dp/B006GB5MDW/ref=sr_1_1?ie=UTF8&qid=1417994556&sr=8-1&keywords=camera++bolt">http://www.amazon.com/SmallRig-D-ring-Screw-Quick-Release/dp/B006GB5MDW/ref=sr_1_1?ie=UTF8&qid=1...</a> -or- <a target="_blank" rel="nofollow" href="http://www.amazon.com/Smallrig-Longer-D-ring-Screw-Camera/dp/B006XDBUZ2/ref=pd_sim_p_1?ie=UTF8&refRID=06T5MEPVQ6A0TQZH0Y0Q">http://www.amazon.com/Smallrig-Longer-D-ring-Screw-Camera/dp/B006XDBUZ2/ref=pd_sim_p_1?ie=UTF8&r...</a> For the legs: I used a 10-24 threaded post with a little super glue tightened into the brass thermoplastic 10-24 insert on the top of the legs (both sides). The spherical knobs for micro adjustment leveling on each side use a thermoplastic 10-24 insert. They can completely unscrew, if needed. The knob on the center 1/4 20 bolt is snap fit and I added a little superglue to ensure it was permanent. Any hex head 1/4 20 should fit, but you might have to experiment/mod the design or press fit it in a vice since your hardware store probably carries slightly different inventory than my local store.

alfas

almost 10 years

Thanks a lot, Doug! What item on the materials list is the main bolt that threads to the camera (center of the picture <a href="https://d36c0vbvwjb9cx.cloudfront.net/uploads/image/file/57189/PET_Moco_StudioShots-0022.jpg" rel="nofollow" target="_blank">PET_Moco_StudioShots-0022.jpg</a>)? It should be a 1/4-20 but of what kind and lenght? Also, how do you attach it to the base so it spins freely but does not fall from the cart? Last question, how do you fit/glue the metal bolts to the plastic printed knobs at the picture <a href="https://d36c0vbvwjb9cx.cloudfront.net/uploads/image/file/57191/PET_Moco_StudioShots-0024.jpg" rel="nofollow" target="_blank">PET_Moco_StudioShots-0024.jpg</a>?

atl_timelapse

almost 10 years

Update 12/5/14: Added editable Cinema4D source file for this design. C4D r13 or newer required. You can download a free C4D demo for 30 days at Maxon.com File name: PET_MocoRig_FULL_v1G_Small&LargeCart_MASTER.c4d

atl_timelapse

almost 10 years

Hi Marcus, The original design files were created in Cinema 4D. I would be happy to post them, but most users do not work in C4D. I'm an animator more than an engineer, so I used the tool set already available to me. Mixing imperial and metric is somewhat inevitable when working with camera equipment and stepper motors. All of the stepper motors use metric (i.e. m3) while camera equipment favors imperial most of the time (i.e. 1/4 20). Ultimately, I built with the hardware on hand from existing projects. This was originally built with my own personal goal in mind to shave weight for hiking with a moco rig. In the end, I decided to share it with others on this page. I know the final documentation isn't crystal clear and there is surely room for improvement, but I would like to think it at-least offers a robust design and general starting point for anyone else hoping to build something similar. Thanks

Marcus Wolschon

almost 10 years

Why are you mixing imperial and metric parts? Where are the original design files (only STL exports published)?

Marcus Wolschon

about 10 years

Where are the source design files? You seem to have only published STL exports.

chrisbtreats

about 10 years

This is what I used for the cart: 8 - 1/4-20 1" Screws for attaching bearings to cart 8 - 1/4-20 0.3" inserts for attaching bearings to cart 8 - 8-32x1/2" for attaching "V F Wheel Norm/Sym" to cart 8 - 8-32 insert for attaching "V F Wheel Norm/Sym" to cart 2 - 8-32x1/2" socket cap to attach "Static Belt Rev3 Dualbolts" to cart 2 - 8-32 insert to attach "Static Belt Rev3 Dualbolts" to cart 2 - 8-32x1/2" socket cap to attach "V F Slide Part A" to cart 2 - 8-32 insert to attach "V F Slide Part A" to cart 1 - 10-24x1.5" spade bolt for cart 1 - 10-24 insert for attaching spade bolt to cart 2 - M3-10 to attach "V F Slide Part B" to "V F Slide Part C Belt Clamp" 2 - M3 insert to attach "V F Slide Part B" to "V F Slide Part C Belt Clamp" 2 - M3-6 to attach "V F Slide Part B" to "V F Slide Part A" 2 - M3 insert to attach "V F Slide Part B" to "V F Slide Part A"

atl_timelapse

about 10 years

The full worm drive assembly requires two 1/4" pulleys: one for the detachable worm drive and one for the opposite end of the slider built into the end cap and covered with a snap-fit level above. In my case, the pulley with the 6mm bore was used to add compatibility for a standard NEMA 17 planetary gear (5:1, 27:1) inplace of the worm drive. You will need to use a drill press to open up the ID to fit the 8mm NEMA 17 shaft. You could just buy 3 of Part #615376, no need for Part #615384 (6mm shaft). I just happened to have purchased a few before I made the designs and used what I had on hand in the end. It's convenient to have the option to switch between the worm drive (secure vertical holding without power, SMS) or planetary gears (speed, smooth video) depending on your application. I'll double check your hardware list soon (away from the finished prints at the moment).

chrisbtreats

about 10 years

From what I can tell, this is the hardware required for the motor assembly and end caps: 3 - M3x10 Socket Cap to attach stepper to Sliding Worm Part B 4 - M3x10 Pan Head to attach Sliding Worm Part A to Motor Block V2 4 - M3 thermoplastic insert to attach Sliding Worm Part A to Motor Block V2 2 - 8-32x1/2" thumb screw to attach Sliding Worm Part B to Sliding Worm Part A 2 - 8-32 insert to attach Sliding Worm Part B to Sliding Worm Part A 2 - 8-32x1" thumb screw to attach Motor assembly to Motor End Cap V4 2 - 8-32 insert to attach Motor assembly to Motor End Cap V4 4 - 10-24 insert for Clamp Handles for end caps 2 - 1/4-20 0.3" insert for tripod mounts on bottom of end caps You also list "XL pinion pulleys-10 tooth, 6mm bore - Part#615384" in addition to a 1/4" bore (Part#615376) but only list 1/4" D-shafts. I'm assuming you should just use the 1/4" on both ends. I'm waiting on some more PET to arrive in the mail before I can finish printing out the cart.

atl_timelapse

about 10 years

I just added the file: MidSpan.stl The pan module works great, but I it's designed for SLS printing (Shapeways). It's not designed or optimized for home printing without a ton of support material (resulting in a poor overall print). I hope to re-design it soon and post the files.

chrisbtreats

about 10 years

I hope to start printing this out this week. I will document the screws and inserts as I go along to help you out (and confirm). Any plans on sharing the pan head assembly or what looks like a track spacer/support?

atl_timelapse

about 10 years

General note: I have not had the time to document which thermoplastic inserts apply to each individual part. In most cases, it should be intuitive based on fit before permanently inserting them with the soldering iron. I'll try to add documentation for each part, until then please feel free to ask any questions and I'll help along the way!

atl_timelapse

about 10 years

Thanks for pointing out yet another missing file! I just added what you need: "MotorBlock_v2.stl"

chrisbtreats

about 10 years

There seems to be a part missing that would connect "Motor End Cap V4" and the sliding worm assembly ("Sliding Worm Part A" & "Sliding Worm Part B"). Like the piece seen in PET_Moco_StudioShots-0028.jpg. By the way, great design. I am hoping to pair this with miniEngine v2 (<a href="http://www.minie.airiclenz.com/" rel="nofollow" target="_blank">http://www.minie.airiclenz.com/</a>)

atl_timelapse

about 10 years

Good catch. “V F Static” AND “Static Clamp V1” are actually unneeded parts (old design iteration) that accidentally got uploaded. I have removed and replaced them with 2 new STL files.<div> </div><div>1. “V F Slide Part C - belt clamp.stl” is what you will need to complete the sliding belt tensioning assembly.</div><div> </div><div>2. “static_belt_rev3_dualbolts.stl” - this is the correct static belt clamp with dual 8-32 thermoplastic inserts (McMaster Carr Part # 93365A140)</div>

chrisbtreats

about 10 years

Based on the image from the bottom of the cart (PET_Moco_StudioShots-0011.jpg) it looks like there is a stl file missing. There is "V F Slide Part A" and "V F Slide Part B" but I don't see the part that holds on to the belt.

chrisbtreats

about 10 years

What is the difference between "Static Clamp V1" and "V F Static"? It looks like they are the same part but different lengths.

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