LX200 Tripod Shrinkit Peterson
Posted 19 March 2009 - 02:23 PM
Posted 21 March 2009 - 02:15 PM
Posted 21 March 2009 - 02:25 PM
you must remove the top black castings from the legs first.
They are held together with an adhesive and was told you must either submerge the casting in a large pot of boiling water or use a heat gun and or torch to heat the casting up enough to soften the adhesive that holds your legs inside.
Once its heated up you need to secure the casting in a vice while prying/twisting/hammering/cursing the leg out of the casting.
After that you need to shorten the legs, the exact amount depends on your needs and applications. I would use a grinder with a cut-off wheel (faster)
Or a pipe cutter (slower but nicer cut)
After you get all the legs cut, you need to debur them and use a good metal 2 part epoxy and tap the legs back into the casting with a wooden or rubber mallet.
The peterson kit only comes with instructions and shorter spreader arms, you should be able to shorten the stock ones yourself without too much trouble, i was just going to cut the flat ends with holes off, then remove the amount of metal i needed and weld them back on, but you might be able to just cut them off at the length needed and drill a new hole in them.
I still plan to shrink mine soon- I plan on making it shorter than even the peterson kit can go- in order to add 4" caster wheels to the bottom.
Let me know how things work out for you
heres another pic- I wanted a way shorter setup
Posted 21 March 2009 - 05:17 PM
Posted 22 March 2009 - 12:54 AM
TV cameras in days of yore, rated for 400 lbs., but only weigh about 30 lbs or fewer,have dual tip spike and pad leg ends ? I have used them for years,made lots of adapters for mounting big binoculars, ( and have too many tripods). This is the tripod you see on the sidelines at major sports events broadcasts.
The lighter duty, but substantial( particularly when the elevating column is low and locked) Hercules and the elevating Gibraltar ( only 200 lb rated), are not hard to find.
Posted 22 March 2009 - 11:25 AM
Posted 22 March 2009 - 04:37 PM
I see that Losmandy now has a folding version of his heavy duty tripod. He (or rather his recent immigrant staff, at least a few years ago) make parallelogram jibs for movie camera support.
Posted 22 March 2009 - 07:26 PM
Posted 23 March 2009 - 01:50 PM
thanks for your reply. to be continued.
Posted 23 March 2009 - 05:28 PM
It's not that simple. Once you cut the legs down, you have to make shorter struts for the bottom of the legs since they will be too long. Knocking out the roll pins needs to be done very carefully so you don't break the castings. That's actually the hardest part.
Struts is what I meant - i called them spreaders for a loss of words
This thread made me get the ball rolling- last night I popped the pins out with a hole punch- wasnt bad at all, I have a garage full of bolts and stuff- I think I will just replace the pins with bolts. Not sure if i will just shorten the struts or replace the strut bars with chains.
To the OP....
When I get to removing the castings via heat application- I will let you know which way worked out best for me.
Posted 24 March 2009 - 10:15 PM
Posted 28 March 2009 - 01:52 PM
I should have excluded the Hercules and probably its big brother, the rising column Gibraltar, from the comparison. What I said definitely applies to the Houston Fearless style 400 lb. rated types, such as the ITV and the Houston Fearless in the picture. One can literally stand upon and bounce on those. They were made not so much for movie camera use as for microwave telemetry paraboloidal dishes and big, heavy early model studio television cameras in the 1950's and early 1960's.