This week I created three kinds of workout equipment to play and get stronger at home: a kettlebell, a balance beam, and a tire sled.

Tools I used:
Tire sled
An old tire
A piece of rope (3 metres, I should have got longer)
An eye bolt + nut + washer
Balance beam
Dowel rods made of pine, 2 metres each, 2.5 inch thick
Sand paper (80 and 180 grade)
Marine varnish, paint thinner, a metal can, a brush
Wood glue + tape
Kettlebells
2 cheap differently sized soccer balls
Quick cement
PVC pipe
Sand
Duct tape
Spray paint
Context
At the start of 2020, just before the pandemic, I spent a month in Thailand living and training at the Diamond Muay Thai gym (an experience I would HIGHLY recommend). While I was there I also discovered the Momentum Mixed Movement Arts center - and my eyes were opened to all kinds of movement play and practices.

Soon after, I landed back in San Francisco and into deep lockdown for the rest of the year. Luckily enough, my living situation was pretty ideal, I had my own tiny cabin out the back of a 12 person community house. I promptly converted it into a ‘backyard dojo’, complete with floor mats, slacklines, trampolines, suspension rigs, and more.
so I can leave it outside during the rainy season
- Glued it together with wood glue - this didn’t work very well because the beams are slightly warped, so they don’t have edges that are flush together the whole length

Accidentally let it sit in heavy rain for 2 days (oops). Upside: the marine varnish works!
Taped it a few times, and it works!

Kettlebells
Got 1 metre of PVC pipe, cut into 3
I need to bend each piece into the shape of a handle, I read that using a hairdryer would get it hot enough to melt, maybe for very very thin PVC, didn’t work in my case, so I’m going the hot sand approach
Heated up sand on the stovetop for 5-10 mins (my sand was a bit wet at first so it gave off a lot of steam)
Taped one end of the PVC, then carefully poured in the hot sand. After a few minutes, the sand passed on the heat and the PVC became soft and malleable:
Video above is my first attempt, it worked, but the resulting handle was too small to fit my hand. Luckily I had 2 more pieces and these ones worked out better:

- Next, I cut a space for the handle in the ball:

- Then I mixed up some wet
concretecement, filled the ball with it, and jammed in the handle:
to do the second ball, so I’ll have to come back to it
- I let that dry for 24 hours, then added some tape on the handle for better grip and to cover up some of the rough edges. Then I gave it a few coats of spray paint:
and then they bring you the product. This + my beginner’s Spanish + my beginner’s tool and material knowledge meant I ended up buying the wrong things a few times
Working with wood is rewarding but takes a long time. Many steps need you to let something dry or cure overnight, and need to be repeated several times
Repetitive mechanic movements, like sanding and painting can be straining on the body. I learned the importance of having the right tools and working setup (because I at first I didn’t have the right tools and felt sore and uncomfortable)
There were many moments this week where I noticed myself go ‘meh, good enough’. Luckily I’m not a perfectionist
By the same token, I probably shouldn’t build my own house or anything structural with that attitude
You can easily remove wood varnish from skin by rubbing it with almond butter
Cement is not the same as concrete. I should have added sand to my cement to make it heavy
Cement is really hard to get off stuff once it’s dry :/
Next steps
Make heavier kettlebells by adding sand or metal to the concrete
Find heavy stuff to drag around inside the tire sled
Host a balance beam battle competition
Make a second balance beam for perpendicular balancing or hopping between beams
Dream up new kinds of movement gear