John Polacchi
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  • Santa Rosa, CA
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John Polacchi's Discussions

Silver Brazing "small" balls to rods

Started this discussion. Last reply by John Polacchi Mar 31. 10 Replies

Here's another subject I know has come up in the past,or at least I know that "silver brazing" is no stranger to subject matter.This is one skill I have yet to really master. I find myself needing to…Continue

Possibly an old subject but...ridding a urethane rubber surface of gloss/shine to get a "matte" finish

Started this discussion. Last reply by John Polacchi Mar 20. 4 Replies

Does anyone know how you can remove/get rid of the glossyness/shine of a urethane rubber casting?I know that silicone you can use a dulling/matte powder that you dust onto a tacky surface when…Continue

BASIC SHOP SAFETY

Started Jan 29 0 Replies

Hello everyone,I thought I'd put in something a little shorter and save the next time for more involved subjects and information.Basic "shop" safety,a no brainer,right?I'm guessing that most of us in…Continue

Basic Machine shop calculations: RPM formulas

Started this discussion. Last reply by Zaid Feb 14. 34 Replies

Here's an important category for "machining" purposes regardless if you are machining armatures or not.If you are *NEW* to running a drill press, mill or lathe,these are the essentials you need to…Continue

 

John Polacchi's Page

Latest Activity

StopmoNick replied to John Polacchi's discussion pros&cons to coistumes mad eof fabric materials vs. "casting" of rtv silicone and/or urethane rubbers
"I didn't use silicone for shoes, I used latex - but I guess silicone would work too. I do like fabric clothes for many reasons.  There are difficulties with scale - fabric doesn't behave the same when it is too small, you get thick…"
yesterday
Cynthia Eckles replied to John Polacchi's discussion pros&cons to coistumes mad eof fabric materials vs. "casting" of rtv silicone and/or urethane rubbers
"Nick, your tutorial on how to make silicone shoes inspired me to make the shoes for my next project as well. I used Ultracal30 for the mold and Platsil Gel-10 for the cast (I'm new to talking about this aloud so to speak, so I apologize if I…"
Friday
StopmoNick replied to John Polacchi's discussion pros&cons to coistumes mad eof fabric materials vs. "casting" of rtv silicone and/or urethane rubbers
"I'm actually thinking about sculpted clothing for an upcoming project, just to get a very different look. I would cast in liquid latex, so I get a hollow skin. I already make shoes and hats that way, and years ago a friend made latex waistcoats…"
Thursday
Cynthia Eckles replied to John Polacchi's discussion pros&cons to coistumes mad eof fabric materials vs. "casting" of rtv silicone and/or urethane rubbers
"Absolutely, I've thought about making my outfits for my puppets through casting simply because my main creative medium is clay, hands down, and I've never learned to sew.  So I decided either I was going to go the Vinton route (where…"
Thursday
John Polacchi replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"Well,one could(if they have the tools) either mill or grind a slot on the surface of the bearing for the rod to sit,set it in with at least "one" screw to hold in place then silver braze it.Basically filling in the slot with silver solder…"
Mar 31
Greyguy replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"just an idea I had about small ball sizes was to solder to the side of the ball but it would limit twisting action"
Mar 31
John Polacchi replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"Yeah,I have a very "crude" and simple" sketch.All the stuff I drew up over the weekend is in the recycle bin.If you wanted to braze to the ball,wouldn't you just need to  orient the ball(after you braze it in with a rod) to…"
Mar 31
Greyguy replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"I have been thinking for a 3/32 ball joint the rod can be soldered to the side of the ball instead of drilling a hole in the ball. Got pictures of what your trying to do? "
Mar 31
John Polacchi replied to Danny Samuels's discussion Is Flexible Urethane Foam an Option?
"Nick,wouldn't that also depend on how dense the foam is and if you are just using it to fill in "large" body parts(like thighs or the upper torso) and to help reduce the overall weight of the puppet?"
Mar 31
John Polacchi commented on rick gibson's photo
Thumbnail

Gorilla puppet

"AWESOME!King Kong!"
Mar 31
John Polacchi replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"Well,"no twisting" that I can think of.I'm actually working on designing "small" jointed hands which is proving to be quite troublesome.The two ball joints will both be 3/32.One at the wrist and the other at the base of the…"
Mar 31
Greyguy replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"I would say no to epoxy but I am sure others have tried it and I worked but I would not trust it if it had to twist."
Mar 31
John Polacchi replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"Well,part of this is stemming from something I'm working on(been working on) for a long time and I'm just trying to get it off the ground(so to speak).While the scale I'm working in I think would be considered "larger" than…"
Mar 31
Greyguy replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"I use stay brite solder for the 1/8 ball joints as the melting point is low I hold the 1/16 rod in a vise and put the ball on top with the flux and solder in the hole then I put some metal stock on the ball and heat it up with a propane torch and…"
Mar 30
John Polacchi replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"I know Micro Mark has some decent tools for handling "miniature" parts such as bearings and screws,nuts and bolts, as well as "miniature torches".Those might be helpful?I'm just concerned that I'm going to waste allot…"
Mar 29
Matthew Metcalf replied to John Polacchi's discussion Silver Brazing "small" balls to rods
"I have been making ball joints for character I am currently working on, and I also have been using ss balls as small as 1/8'' (I work better with fractions). I go about it the same way as I go about using 1/4'' ss balls, using a…"
Mar 28

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Message Board

Anyone worked with an anamorphic lens?

Started by krullthewarriorking in CAMERA & STAGE. Last reply by krullthewarriorking 1 hour ago. 7 Replies

Hello all!I'm brand new to the community, and am pretty inexperienced with stop motion too, mostly just Lego movies here and there.  But I have been doing some research about lenses, and I have read a TON of the lens threads here over the last few…Continue

Tags: 55mm, diopter, 28mm, brickfilm, depth of field

"Will O' The Wisp" Production Bumper + Short Film (2014)

Started by Mike in YOUR STOPMO FILM PROJECT. Last reply by Benjamin Grare 6 hours ago. 7 Replies

Hello Everyone :) I've been posting some random W.I.P. photos and little test videos over the past year or so, but I recently discovered there's a "your project" section here in the forum. So this is a thread for my ongoing project, "Will O' The…Continue

Tags: wip, commercial, bumper, film, short

Substitution for Naphtha for painting Silicone?

Started by Dawn Brown in GENERAL PUPPET MAKING. Last reply by Dawn Brown 7 hours ago. 2 Replies

Hi gang,I have often read that Naphtha is used to thin tinted silicone so you can paint with it, or even push it through an airbrush.I want to paint silicone with an airbrush, but Naphtha is not readily available in my area. Can I use Mineral…Continue

Tags: silicone, painting, naphtha

sticky latex

Started by fatih in GENERAL PUPPET MAKING. Last reply by Simon Tytherleigh 13 hours ago. 9 Replies

the hands of my puppet became sticky a couple of months later. how can I prevent this situation? why did it become sticky I'm in need of a solution about this?Continue

Looking for animator for 20 sec short

Started by Robert in YOUR STOPMO FILM PROJECT. Last reply by StopmoNick yesterday. 8 Replies

I'm actually designing a storyboard for a short 20 sec animation with 2 characters one in a bed sick with a flu with a thermometer hanging out his mouth the other a doctor, I've been thinking of doing this a while for my documentary I'm making but I…Continue

Grand Prize Winner! "Marshmallow Martyr"

Started by Rick Jacobs in YOUR STOPMO FILM PROJECT. Last reply by Simon Tytherleigh yesterday. 5 Replies

Fun! I won grand prize for this animation. On to a more challenging competition.…Continue

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