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Blog Building Custom Helping Hands
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Engagement
  • Author Author: shabaz
  • Date Created: 12 Mar 2019 10:20 PM Date Created
  • Views 508 views
  • Likes 20 likes
  • Comments 16 comments
  • bench vise
  • vise
  • helping hands
  • pcb_holder
  • helping_hands
  • vice
  • pcb holder
  • vises
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Building Custom Helping Hands

shabaz
shabaz
12 Mar 2019

Introduction

For years I’ve been “helping hand”-less. Since I was a kid, the design of the classic helping hands has not really changed - it has stood the test of time, but just for lightweight tasks. For anything large/heavy, it all goes wrong.

 

Here’s one attempt at solving the problem.. it relies on cheap camera ball-heads and clamps, and a steel base. It can all be built in an hour or two, depending on how fancy a base is desired. Otherwise, it is all plug-and-play to assemble, like Lego.

 

This eight-minute video explains the project, and has some demo examples of it in action.

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This is the type of Helping Hands I was familiar with:

Image source: Google Images

 

Instead, I’ve been using a low-cost aluminium vice such as the one in the photo below to meet most of my needs, but occasionally I’d still like a helping-hands style tool, but a lot stronger, and customisable.

 

The bill-of-materials for this project is probably $40-50 in total, but there is the opportunity to reduce costs. It hinges on the fact that camera users often have very fancy equipment at their disposal! Searching on Amazon/Aliexpress revealed systems such as 'SmallRig’ which have components like 15mm diameter rods, and clamps. I purchased some to see if they could be useful. Any camera user will eventually have a ball head spare, so costs can be saved there too. There are very basic ones from Aliexpress for less than $5 but they are not very good : ( I used an old CB2.7 ball head, and a £12 SIOTI ball head from Amazon. Both are great.

 

For the base, I purchased an oval 15mm thick steel offcut for £3.99. Somewhere in the UK a large steel plate needed a shape cut out, and the factory sold the cut-outs on ebay.

 

It is low cost, has a reasonable footprint (168x99mm), and is very heavy (perhaps a kilogram) – perfect! I imagine factories in other countries will also sell offcuts for next to nothing. One person's scrap is another person's treasure..

 

There is a notch in the offcut where the cutting tool started, but that can be filled (Polyfilla, or even epoxy glueepoxy glue) if desired, or left as-is. Next, a ¼ inch UNC hole was tapped – this is the typical standard thread for consumer cameras. It is not essential, if the hole is untapped then epoxy glue could be used too.

 

I filed off the sharp edges and lightly hand-sanded it to get rid of the rust. It looked nice and industrial! Still, to go with the rest of the décor, I did paint it afterwards but that was unnecessary. Some rubber feet should be attached on the underside too.

 

Assembling It

There’s not much to say, it is trivial to connect it all together.

Materials

These were the main parts that I used, but there is plenty of scope for variation.

Item
1Steel base from ebay seller bitsandbobs332014
2Rubber feetRubber feet
31/4" to 1/4" Adaptor
4Ball Head
515mm Rod 150mm length
6Rod Clamp
7M12 to 1/4" Adaptor
8SmallRig Super Clamp

 

Customizing It

The possibilities are endless.. Another clamp arm could be attached if required. An LED light could be added. Custom grips could be 3D-printed to clip onto the current clamp jaws.

 

Using It

Check out the earlier video to see it in action – it’s surprising how many uses it has.

It can act as a PCB holder, although I still prefer using the aluminium flat vice for that.

 

It is extremely rigid, so things can be held at a distance, wherever it is easier to work.

 

It can hold heavy-ish antennas too!

 

I found that very large PCBs can be propped up.

 

Since the clamp has rubber grips, it is also very handy for holding oscilloscope probes in place. Also, it can help with holding large heavy cables close to connectors. I found it useful for soldering audio jacks!

 

Summary

I’m really happy how this simple project turned out. The entire unit is strong, and doesn’t easily tip while using it. In future I may try adding an LED light.

 

If you build any type of helping hands/clamp system, or have ideas for adaptations or attachments for it, it would be great to hear about them.

 

Thanks for reading!

Anonymous

Top Comments

  • 14rhb
    14rhb over 3 years ago +9

    Hi Shabaz,

     

    This is a great build and looks so much better than the standard croc-clip helping hands, well done.

     

    I bought myself some 1/4" UNC tap/die set years ago (so that I could make customised tripod…

  • ntewinkel
    ntewinkel over 3 years ago +9

    That's a REALLY nice design, Shabaz!

    I might have to try that for myself. I can likely get a chunk of heavy metal from my father-in-law. Nice how yours is perfectly shaped like that.

     

    I was about to order…

  • genebren
    genebren over 3 years ago +8

    shabaz,

     

    What a great idea (or series of ideas). The video was very good, I feel that you are quite good at capturing your ideas/explaining your process in your videos (far more comfortable than I feel anywhere…

Parents
  • ntewinkel
    ntewinkel over 3 years ago

    That's a REALLY nice design, Shabaz!

    I might have to try that for myself. I can likely get a chunk of heavy metal from my father-in-law. Nice how yours is perfectly shaped like that.

     

    I was about to order some of those coolant pipes (only about $1 each) to try that method. That would probably be alright, except that the usual alligator clips kinda suck. I like your use of the rubber gripper.

     

    Or given what we do, maybe we should consider using robot arms!!   I'm only half kidding, as this one on eBay is only $15 USD...

     

    Of course then it gets all complicated needing joystick controls and the like

     

    So then the obvious easiest solution is to implement the AI needed for it to position itself automatically in the most helpful way possible.

     

     

    -Nico

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  • ntewinkel
    ntewinkel over 3 years ago

    That's a REALLY nice design, Shabaz!

    I might have to try that for myself. I can likely get a chunk of heavy metal from my father-in-law. Nice how yours is perfectly shaped like that.

     

    I was about to order some of those coolant pipes (only about $1 each) to try that method. That would probably be alright, except that the usual alligator clips kinda suck. I like your use of the rubber gripper.

     

    Or given what we do, maybe we should consider using robot arms!!   I'm only half kidding, as this one on eBay is only $15 USD...

     

    Of course then it gets all complicated needing joystick controls and the like

     

    So then the obvious easiest solution is to implement the AI needed for it to position itself automatically in the most helpful way possible.

     

     

    -Nico

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  • shabaz
    shabaz over 3 years ago in reply to ntewinkel

    Hi Nico!

     

    That's an awesome idea : )  helping hands with the intelligence to help you automatically : ) It could move a magnifier around to follow you, or respond to voice commands to nudge it say left or right!

    The coolant hose idea is really interesting, I've been for something similar but thinner, to see if I can fit an LED on the end.. or find some thin gooseneck.

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  • 14rhb
    14rhb over 3 years ago in reply to ntewinkel

    Hi Nico,

     

    Seeing your coolant pipes has given me an idea, which might not work. He goes: use 3-4 silicon rubber tubes in parallel with the gripping components at the end. Bend it around easily into position, press the switch (ideally a foot switch) and an air compressor quickly pressurises the pipes making them act as a rigid form. The grip could perhaps also be powered by the same air source. Release the foot switch as it all relaxes again ?

     

    It would be really quick to adjust, grip and release. Downside would be the need for a power source and the noisy compressor.

     

    Of course such an idea might end up just flinging the gripped assembly/component across the workshop when all 3-4 tubes inflate with equal vigour !

     

    Rod

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