HDPE Mallet - AKA Milk Jug Hammer

**WinDancerKnives** · Mar 13, 2018, 06:07 PM

I do a lot of ornamental blacksmithing and non-marring hammers are always on my list- I wonder how apt this is to delaminate under heavy use? Hate to do all this work and them have it come apart.... anyone else build one and really beat with it? Used one on steel?
Thanks for sharing this!
Dave

**Floradawg** · Jul 9, 2018, 07:12 PM

Wow, there's probably a million adaptations one could come up with. I will start saving jugs and in the meantime think of things to make. This is really great stuff. Thanks.

**suther51** · Mar 13, 2018, 07:51 PM

This really cought my eye. When timberframing a durable mallet is a necessity, at times heavier the better. I made large ones out of ash and maple but they always split eventually. I reuse the handle each time. The last one I made I put threaded rod with (can't think of the proper name now) flanges nuts used backwards, the flanges out. Still split. Have sense obtained some 5x8 black locusts I plan on turning on the lathe with metal bands to prevent splitting. Just may have to try this too!
Thanks
Eric

**WinDancerKnives** · Jul 9, 2018, 08:15 PM

Has anyone used these for an extended time? Wondering how they hold up for straightening hot steel?
Thanks,
Dave

**Priemsy** · Sep 15, 2018, 02:10 PM

Is there anything on the moulding of the block, i.e. mould and do you apply pressure...how?

**mr95gst** · Sep 17, 2018, 04:40 AM

The mold was screwed together so that it could be disassembled in case everything stuck together. I lined my mold with wax paper so that the plastic would not stick to the mold. To get a dense block without many voids you have to use pressure. I used bar clamps.

**geo098760** · Feb 4, 2025, 12:46 PM

I've been looking for some information on this process. Thanks for the good info.

**amarlow** · Sep 27, 2018, 10:13 AM

I have got to try this. (I knew there was a reason to save all those milk jugs!) And I like the idea of cutting up a blue Lowe's or orange Home Despot bucket for contrasting swirls. Anybody have ideas on how to make the cutting/shredding go quicker & easier? Just a thought: a sheet of parchment paper -- or even better one of those silicone baking mats (like Silpat) -- might be more effective than wax paper.

**mr95gst** · Oct 19, 2018, 05:07 PM

There is a guy on line that has free plans for a plastic shredder. The files are made so that you can hand them to someone with a laser cutter to cut all the pieces out. I forget the guys name but he has a youtube channel and demonstrates the shredder. Its a beast. Unfortunately, I think it would costs about $400 to $500 to make with the high torque motor. I thought about it for a bit but decided I couldn't invest that much into it with it only having a single use.

**IntheGroove** · Oct 21, 2020, 11:55 AM

I don't see why you couldn't use a metal mould. Find the shape you want, round, square, rectangle, whatever and stand it upright in the oven and continue to add material until the mould is full. Leave it in the oven to become one solid block. After it cools square the ends and machine the hole for the handle, Hammer Time...